chore: merge feat/refresh

packages/lib/client-only/hooks/use-analytics.ts

@@ -0,0 +1,61 @@
+import { posthog } from 'posthog-js';
+
+import { useFeatureFlags } from '@documenso/lib/client-only/providers/feature-flag';
+import {
+  FEATURE_FLAG_GLOBAL_SESSION_RECORDING,
+  extractPostHogConfig,
+} from '@documenso/lib/constants/feature-flags';
+
+export function useAnalytics() {
+  const featureFlags = useFeatureFlags();
+  const isPostHogEnabled = extractPostHogConfig();
+
+  /**
+   * Capture an analytic event.
+   *
+   * @param event The event name.
+   * @param properties Properties to attach to the event.
+   */
+  const capture = (event: string, properties?: Record<string, unknown>) => {
+    if (!isPostHogEnabled) {
+      return;
+    }
+
+    posthog.capture(event, properties);
+  };
+
+  /**
+   * Start the session recording.
+   *
+   * @param eventFlag The event to check against feature flags to determine whether tracking is enabled.
+   */
+  const startSessionRecording = (eventFlag?: string) => {
+    const isSessionRecordingEnabled = featureFlags.getFlag(FEATURE_FLAG_GLOBAL_SESSION_RECORDING);
+    const isSessionRecordingEnabledForEvent = Boolean(eventFlag && featureFlags.getFlag(eventFlag));
+
+    if (!isPostHogEnabled || !isSessionRecordingEnabled || !isSessionRecordingEnabledForEvent) {
+      return;
+    }
+
+    posthog.startSessionRecording();
+  };
+
+  /**
+   * Stop the current session recording.
+   */
+  const stopSessionRecording = () => {
+    const isSessionRecordingEnabled = featureFlags.getFlag(FEATURE_FLAG_GLOBAL_SESSION_RECORDING);
+
+    if (!isPostHogEnabled || !isSessionRecordingEnabled) {
+      return;
+    }
+
+    posthog.stopSessionRecording();
+  };
+
+  return {
+    capture,
+    startSessionRecording,
+    stopSessionRecording,
+  };
+}

packages/lib/client-only/hooks/use-debounced-value.ts

@@ -0,0 +1,18 @@
+import { useEffect, useState } from 'react';
+
+export function useDebouncedValue<T>(value: T, delay: number) {
+  // State and setters for debounced value
+  const [debouncedValue, setDebouncedValue] = useState(value);
+
+  useEffect(() => {
+    const handler = setTimeout(() => {
+      setDebouncedValue(value);
+    }, delay);
+
+    return () => {
+      clearTimeout(handler);
+    };
+  }, [value, delay]);
+
+  return debouncedValue;
+}

packages/lib/client-only/hooks/use-element-scale-size.ts

@@ -0,0 +1,85 @@
+/* eslint-disable @typescript-eslint/consistent-type-assertions */
+import { RefObject, useEffect, useState } from 'react';
+
+/**
+ * Calculate the width and height of a text element.
+ *
+ * @param text The text to calculate the width and height of.
+ * @param fontSize The font size to apply to the text.
+ * @param fontFamily The font family to apply to the text.
+ * @returns Returns the width and height of the text.
+ */
+function calculateTextDimensions(
+  text: string,
+  fontSize: string,
+  fontFamily: string,
+): { width: number; height: number } {
+  // Reuse old canvas if available.
+  let canvas = (calculateTextDimensions as { canvas?: HTMLCanvasElement }).canvas;
+
+  if (!canvas) {
+    canvas = document.createElement('canvas');
+    (calculateTextDimensions as { canvas?: HTMLCanvasElement }).canvas = canvas;
+  }
+
+  const context = canvas.getContext('2d');
+  if (!context) {
+    return { width: 0, height: 0 };
+  }
+
+  context.font = `${fontSize} ${fontFamily}`;
+  const metrics = context.measureText(text);
+
+  return {
+    width: metrics.width,
+    height: metrics.actualBoundingBoxAscent + metrics.actualBoundingBoxDescent,
+  };
+}
+
+/**
+ * Calculate the scaling size to apply to a text to fit it within a container.
+ *
+ * @param container The container dimensions to fit the text within.
+ * @param text The text to fit within the container.
+ * @param fontSize The font size to apply to the text.
+ * @param fontFamily The font family to apply to the text.
+ * @returns Returns a value between 0 and 1 which represents the scaling factor to apply to the text.
+ */
+export const calculateTextScaleSize = (
+  container: { width: number; height: number },
+  text: string,
+  fontSize: string,
+  fontFamily: string,
+) => {
+  const { width, height } = calculateTextDimensions(text, fontSize, fontFamily);
+  return Math.min(container.width / width, container.height / height, 1);
+};
+
+/**
+ * Given a container and child element, calculate the scaling size to apply to the child.
+ */
+export function useElementScaleSize(
+  container: { width: number; height: number },
+  child: RefObject<HTMLElement | null>,
+  fontSize: number,
+  fontFamily: string,
+) {
+  const [scalingFactor, setScalingFactor] = useState(1);
+
+  useEffect(() => {
+    if (!child.current) {
+      return;
+    }
+
+    const scaleSize = calculateTextScaleSize(
+      container,
+      child.current.innerText,
+      `${fontSize}px`,
+      fontFamily,
+    );
+
+    setScalingFactor(scaleSize);
+  }, [child, container, fontFamily, fontSize]);
+
+  return scalingFactor;
+}

packages/lib/client-only/hooks/use-field-page-coords.ts

@@ -0,0 +1,78 @@
+import { useCallback, useEffect, useState } from 'react';
+
+import { getBoundingClientRect } from '@documenso/lib/client-only/get-bounding-client-rect';
+import { PDF_VIEWER_PAGE_SELECTOR } from '@documenso/lib/constants/pdf-viewer';
+import { Field } from '@documenso/prisma/client';
+
+export const useFieldPageCoords = (field: Field) => {
+  const [coords, setCoords] = useState({
+    x: 0,
+    y: 0,
+    height: 0,
+    width: 0,
+  });
+
+  const calculateCoords = useCallback(() => {
+    const $page = document.querySelector<HTMLElement>(
+      `${PDF_VIEWER_PAGE_SELECTOR}[data-page-number="${field.page}"]`,
+    );
+
+    if (!$page) {
+      return;
+    }
+
+    const { top, left, height, width } = getBoundingClientRect($page);
+
+    // X and Y are percentages of the page's height and width
+    const fieldX = (Number(field.positionX) / 100) * width + left;
+    const fieldY = (Number(field.positionY) / 100) * height + top;
+
+    const fieldHeight = (Number(field.height) / 100) * height;
+    const fieldWidth = (Number(field.width) / 100) * width;
+
+    setCoords({
+      x: fieldX,
+      y: fieldY,
+      height: fieldHeight,
+      width: fieldWidth,
+    });
+  }, [field.height, field.page, field.positionX, field.positionY, field.width]);
+
+  useEffect(() => {
+    calculateCoords();
+  }, [calculateCoords]);
+
+  useEffect(() => {
+    const onResize = () => {
+      calculateCoords();
+    };
+
+    window.addEventListener('resize', onResize);
+
+    return () => {
+      window.removeEventListener('resize', onResize);
+    };
+  }, [calculateCoords]);
+
+  useEffect(() => {
+    const $page = document.querySelector<HTMLElement>(
+      `${PDF_VIEWER_PAGE_SELECTOR}[data-page-number="${field.page}"]`,
+    );
+
+    if (!$page) {
+      return;
+    }
+
+    const observer = new ResizeObserver(() => {
+      calculateCoords();
+    });
+
+    observer.observe($page);
+
+    return () => {
+      observer.disconnect();
+    };
+  }, [calculateCoords, field.page]);
+
+  return coords;
+};

packages/lib/client-only/hooks/use-is-mounted.ts

@@ -0,0 +1,11 @@
+import { useEffect, useState } from 'react';
+
+export const useIsMounted = () => {
+  const [isMounted, setIsMounted] = useState(false);
+
+  useEffect(() => {
+    setIsMounted(true);
+  }, []);
+
+  return isMounted;
+};

packages/lib/client-only/hooks/use-window-size.ts

@@ -0,0 +1,27 @@
+import { useEffect, useState } from 'react';
+
+export function useWindowSize() {
+  const [size, setSize] = useState({
+    width: 0,
+    height: 0,
+  });
+
+  const onResize = () => {
+    setSize({
+      width: window.innerWidth,
+      height: window.innerHeight,
+    });
+  };
+
+  useEffect(() => {
+    onResize();
+
+    window.addEventListener('resize', onResize);
+
+    return () => {
+      window.removeEventListener('resize', onResize);
+    };
+  }, []);
+
+  return size;
+}

packages/lib/client-only/providers/feature-flag.tsx

@@ -0,0 +1,95 @@
+'use client';
+
+import { createContext, useCallback, useContext, useEffect, useState } from 'react';
+
+import {
+  FEATURE_FLAG_POLL_INTERVAL,
+  LOCAL_FEATURE_FLAGS,
+  isFeatureFlagEnabled,
+} from '@documenso/lib/constants/feature-flags';
+import { getAllFlags } from '@documenso/lib/universal/get-feature-flag';
+
+import { TFeatureFlagValue } from './feature-flag.types';
+
+export type FeatureFlagContextValue = {
+  getFlag: (_key: string) => TFeatureFlagValue;
+};
+
+export const FeatureFlagContext = createContext<FeatureFlagContextValue | null>(null);
+
+export const useFeatureFlags = () => {
+  const context = useContext(FeatureFlagContext);
+
+  if (!context) {
+    throw new Error('useFeatureFlags must be used within a FeatureFlagProvider');
+  }
+
+  return context;
+};
+
+export function FeatureFlagProvider({
+  children,
+  initialFlags,
+}: {
+  children: React.ReactNode;
+  initialFlags: Record<string, TFeatureFlagValue>;
+}) {
+  const [flags, setFlags] = useState(initialFlags);
+
+  const getFlag = useCallback(
+    (flag: string) => {
+      if (!isFeatureFlagEnabled()) {
+        return LOCAL_FEATURE_FLAGS[flag] ?? true;
+      }
+
+      return flags[flag] ?? false;
+    },
+    [flags],
+  );
+
+  /**
+   * Refresh the flags every `FEATURE_FLAG_POLL_INTERVAL` amount of time if the window is focused.
+   */
+  useEffect(() => {
+    if (!isFeatureFlagEnabled()) {
+      return;
+    }
+
+    const interval = setInterval(() => {
+      if (document.hasFocus()) {
+        void getAllFlags().then((newFlags) => setFlags(newFlags));
+      }
+    }, FEATURE_FLAG_POLL_INTERVAL);
+
+    return () => {
+      clearInterval(interval);
+    };
+  }, []);
+
+  /**
+   * Refresh the flags when the window is focused.
+   */
+  useEffect(() => {
+    if (!isFeatureFlagEnabled()) {
+      return;
+    }
+
+    const onFocus = () => void getAllFlags().then((newFlags) => setFlags(newFlags));
+
+    window.addEventListener('focus', onFocus);
+
+    return () => {
+      window.removeEventListener('focus', onFocus);
+    };
+  }, []);
+
+  return (
+    <FeatureFlagContext.Provider
+      value={{
+        getFlag,
+      }}
+    >
+      {children}
+    </FeatureFlagContext.Provider>
+  );
+}

packages/lib/client-only/providers/feature-flag.types.ts

@@ -0,0 +1,10 @@
+import { z } from 'zod';
+
+export const ZFeatureFlagValueSchema = z.union([
+  z.boolean(),
+  z.string(),
+  z.number(),
+  z.undefined(),
+]);
+
+export type TFeatureFlagValue = z.infer<typeof ZFeatureFlagValueSchema>;

packages/lib/constants/app.ts

@@ -0,0 +1,8 @@
+export const IS_APP_MARKETING = process.env.NEXT_PUBLIC_PROJECT === 'marketing';
+export const IS_APP_WEB = process.env.NEXT_PUBLIC_PROJECT === 'web';
+
+export const APP_FOLDER = IS_APP_MARKETING ? 'marketing' : 'web';
+
+export const APP_BASE_URL = IS_APP_WEB
+  ? process.env.NEXT_PUBLIC_WEBAPP_URL
+  : process.env.NEXT_PUBLIC_MARKETING_URL;

packages/lib/constants/email.ts

@@ -0,0 +1,4 @@
+export const FROM_ADDRESS = process.env.NEXT_PRIVATE_SMTP_FROM_ADDRESS || 'noreply@documenso.com';
+export const FROM_NAME = process.env.NEXT_PRIVATE_SMTP_FROM_NAME || 'Documenso';
+
+export const SERVICE_USER_EMAIL = 'serviceaccount@documenso.com';

packages/lib/constants/feature-flags.ts

@@ -1,3 +1,10 @@
+import { APP_BASE_URL } from './app';
+
+/**
+ * The flag name for global session recording feature flag.
+ */
+export const FEATURE_FLAG_GLOBAL_SESSION_RECORDING = 'global_session_recording';
+
 /**
  * How frequent to poll for new feature flags in milliseconds.
  */
@@ -10,6 +17,7 @@ export const FEATURE_FLAG_POLL_INTERVAL = 30000;
  */
 export const LOCAL_FEATURE_FLAGS: Record<string, boolean> = {
   app_billing: process.env.NEXT_PUBLIC_FEATURE_BILLING_ENABLED === 'true',
+  marketing_header_single_player_mode: false,
 } as const;
 
 /**
@@ -17,7 +25,7 @@ export const LOCAL_FEATURE_FLAGS: Record<string, boolean> = {
  */
 export function extractPostHogConfig(): { key: string; host: string } | null {
   const postHogKey = process.env.NEXT_PUBLIC_POSTHOG_KEY;
-  const postHogHost = process.env.NEXT_PUBLIC_POSTHOG_HOST;
+  const postHogHost = `${APP_BASE_URL}/ingest`;
 
   if (!postHogKey || !postHogHost) {
     return null;

packages/lib/constants/pdf.ts

@@ -0,0 +1,9 @@
+import { APP_BASE_URL } from './app';
+
+export const DEFAULT_STANDARD_FONT_SIZE = 15;
+export const DEFAULT_HANDWRITING_FONT_SIZE = 50;
+
+export const MIN_STANDARD_FONT_SIZE = 8;
+export const MIN_HANDWRITING_FONT_SIZE = 20;
+
+export const CAVEAT_FONT_PATH = `${APP_BASE_URL}/fonts/caveat.ttf`;

packages/lib/next-auth/get-server-session.ts

@@ -15,7 +15,7 @@ export const getServerSession = async ({ req, res }: GetServerSessionOptions) =>
   const session = await getNextAuthServerSession(req, res, NEXT_AUTH_OPTIONS);
 
   if (!session || !session.user?.email) {
-    return null;
+    return { user: null, session: null };
   }
 
   const user = await prisma.user.findFirstOrThrow({
@@ -24,14 +24,14 @@ export const getServerSession = async ({ req, res }: GetServerSessionOptions) =>
     },
   });
 
-  return user;
+  return { user, session };
 };
 
 export const getServerComponentSession = async () => {
   const session = await getNextAuthServerSession(NEXT_AUTH_OPTIONS);
 
   if (!session || !session.user?.email) {
-    return null;
+    return { user: null, session: null };
   }
 
   const user = await prisma.user.findFirstOrThrow({
@@ -40,15 +40,15 @@ export const getServerComponentSession = async () => {
     },
   });
 
-  return user;
+  return { user, session };
 };
 
 export const getRequiredServerComponentSession = async () => {
-  const session = await getServerComponentSession();
+  const { user, session } = await getServerComponentSession();
 
-  if (!session) {
+  if (!user || !session) {
     throw new Error('No session found');
   }
 
-  return session;
+  return { user, session };
 };

packages/lib/package.json

@@ -10,13 +10,16 @@
     "universal/",
     "next-auth/"
   ],
-  "scripts": {},
+  "scripts": {
+    "clean": "rimraf node_modules"
+  },
   "dependencies": {
     "@aws-sdk/client-s3": "^3.410.0",
     "@aws-sdk/s3-request-presigner": "^3.410.0",
     "@aws-sdk/signature-v4-crt": "^3.410.0",
     "@documenso/email": "*",
     "@documenso/prisma": "*",
+    "@documenso/signing": "*",
     "@next-auth/prisma-adapter": "1.0.7",
     "@pdf-lib/fontkit": "^1.1.1",
     "@scure/base": "^1.1.3",
@@ -25,7 +28,7 @@
     "bcrypt": "^5.1.0",
     "luxon": "^3.4.0",
     "nanoid": "^4.0.2",
-    "next": "13.4.12",
+    "next": "13.4.19",
     "next-auth": "4.22.3",
     "pdf-lib": "^1.17.1",
     "react": "18.2.0",

packages/lib/server-only/auth/send-reset-password.ts

@@ -18,8 +18,6 @@ export const sendResetPassword = async ({ userId }: SendResetPasswordOptions) =>
 
   const assetBaseUrl = process.env.NEXT_PUBLIC_WEBAPP_URL || 'http://localhost:3000';
 
-  console.log({ assetBaseUrl });
-
   const template = createElement(ResetPasswordTemplate, {
     assetBaseUrl,
     userEmail: user.email,

packages/lib/server-only/document-meta/upsert-document-meta.ts

@@ -0,0 +1,30 @@
+'use server';
+
+import { prisma } from '@documenso/prisma';
+
+export type CreateDocumentMetaOptions = {
+  documentId: number;
+  subject: string;
+  message: string;
+};
+
+export const upsertDocumentMeta = async ({
+  subject,
+  message,
+  documentId,
+}: CreateDocumentMetaOptions) => {
+  return await prisma.documentMeta.upsert({
+    where: {
+      documentId,
+    },
+    create: {
+      subject,
+      message,
+      documentId,
+    },
+    update: {
+      subject,
+      message,
+    },
+  });
+};

packages/lib/server-only/document/complete-document-with-token.ts

@@ -4,6 +4,7 @@ import { prisma } from '@documenso/prisma';
 import { DocumentStatus, SigningStatus } from '@documenso/prisma/client';
 
 import { sealDocument } from './seal-document';
+import { sendPendingEmail } from './send-pending-email';
 
 export type CompleteDocumentWithTokenOptions = {
   token: string;
@@ -69,6 +70,19 @@ export const completeDocumentWithToken = async ({
     },
   });
 
+  const pendingRecipients = await prisma.recipient.count({
+    where: {
+      documentId: document.id,
+      signingStatus: {
+        not: SigningStatus.SIGNED,
+      },
+    },
+  });
+
+  if (pendingRecipients > 0) {
+    await sendPendingEmail({ documentId, recipientId: recipient.id });
+  }
+
   const documents = await prisma.document.updateMany({
     where: {
       id: document.id,

packages/lib/server-only/document/delete-draft-document.ts

@@ -0,0 +1,13 @@
+'use server';
+
+import { prisma } from '@documenso/prisma';
+import { DocumentStatus } from '@documenso/prisma/client';
+
+export type DeleteDraftDocumentOptions = {
+  id: number;
+  userId: number;
+};
+
+export const deleteDraftDocument = async ({ id, userId }: DeleteDraftDocumentOptions) => {
+  return await prisma.document.delete({ where: { id, userId, status: DocumentStatus.DRAFT } });
+};

packages/lib/server-only/document/get-document-by-id.ts

@@ -13,6 +13,7 @@ export const getDocumentById = async ({ id, userId }: GetDocumentByIdOptions) =>
     },
     include: {
       documentData: true,
+      documentMeta: true,
     },
   });
 };

packages/lib/server-only/document/get-document-by-token.ts

@@ -1,12 +1,21 @@
 import { prisma } from '@documenso/prisma';
+import { DocumentWithRecipient } from '@documenso/prisma/types/document-with-recipient';
 
 export interface GetDocumentAndSenderByTokenOptions {
   token: string;
 }
 
+export interface GetDocumentAndRecipientByTokenOptions {
+  token: string;
+}
+
 export const getDocumentAndSenderByToken = async ({
   token,
 }: GetDocumentAndSenderByTokenOptions) => {
+  if (!token) {
+    throw new Error('Missing token');
+  }
+
   const result = await prisma.document.findFirstOrThrow({
     where: {
       Recipient: {
@@ -29,3 +38,33 @@ export const getDocumentAndSenderByToken = async ({
     User,
   };
 };
+
+/**
+ * Get a Document and a Recipient by the recipient token.
+ */
+export const getDocumentAndRecipientByToken = async ({
+  token,
+}: GetDocumentAndRecipientByTokenOptions): Promise<DocumentWithRecipient> => {
+  if (!token) {
+    throw new Error('Missing token');
+  }
+
+  const result = await prisma.document.findFirstOrThrow({
+    where: {
+      Recipient: {
+        some: {
+          token,
+        },
+      },
+    },
+    include: {
+      Recipient: true,
+      documentData: true,
+    },
+  });
+
+  return {
+    ...result,
+    Recipient: result.Recipient[0],
+  };
+};

packages/lib/server-only/document/seal-document.ts

@@ -5,10 +5,12 @@ import { PDFDocument } from 'pdf-lib';
 
 import { prisma } from '@documenso/prisma';
 import { DocumentStatus, SigningStatus } from '@documenso/prisma/client';
+import { signPdf } from '@documenso/signing';
 
 import { getFile } from '../../universal/upload/get-file';
 import { putFile } from '../../universal/upload/put-file';
 import { insertFieldInPDF } from '../pdf/insert-field-in-pdf';
+import { sendCompletedEmail } from './send-completed-email';
 
 export type SealDocumentOptions = {
   documentId: number;
@@ -70,12 +72,14 @@ export const sealDocument = async ({ documentId }: SealDocumentOptions) => {
 
   const pdfBytes = await doc.save();
 
+  const pdfBuffer = await signPdf({ pdf: Buffer.from(pdfBytes) });
+
   const { name, ext } = path.parse(document.title);
 
   const { data: newData } = await putFile({
     name: `${name}_signed${ext}`,
     type: 'application/pdf',
-    arrayBuffer: async () => Promise.resolve(Buffer.from(pdfBytes)),
+    arrayBuffer: async () => Promise.resolve(pdfBuffer),
   });
 
   await prisma.documentData.update({
@@ -86,4 +90,6 @@ export const sealDocument = async ({ documentId }: SealDocumentOptions) => {
       data: newData,
     },
   });
+
+  await sendCompletedEmail({ documentId });
 };

packages/lib/server-only/document/send-completed-email.ts

@@ -0,0 +1,57 @@
+import { createElement } from 'react';
+
+import { mailer } from '@documenso/email/mailer';
+import { render } from '@documenso/email/render';
+import { DocumentCompletedEmailTemplate } from '@documenso/email/templates/document-completed';
+import { prisma } from '@documenso/prisma';
+
+export interface SendDocumentOptions {
+  documentId: number;
+}
+
+export const sendCompletedEmail = async ({ documentId }: SendDocumentOptions) => {
+  const document = await prisma.document.findUnique({
+    where: {
+      id: documentId,
+    },
+    include: {
+      Recipient: true,
+    },
+  });
+
+  if (!document) {
+    throw new Error('Document not found');
+  }
+
+  if (document.Recipient.length === 0) {
+    throw new Error('Document has no recipients');
+  }
+
+  await Promise.all([
+    document.Recipient.map(async (recipient) => {
+      const { email, name, token } = recipient;
+
+      const assetBaseUrl = process.env.NEXT_PUBLIC_WEBAPP_URL || 'http://localhost:3000';
+
+      const template = createElement(DocumentCompletedEmailTemplate, {
+        documentName: document.title,
+        assetBaseUrl,
+        downloadLink: `${process.env.NEXT_PUBLIC_WEBAPP_URL}/sign/${token}/complete`,
+      });
+
+      await mailer.sendMail({
+        to: {
+          address: email,
+          name,
+        },
+        from: {
+          name: process.env.NEXT_PRIVATE_SMTP_FROM_NAME || 'Documenso',
+          address: process.env.NEXT_PRIVATE_SMTP_FROM_ADDRESS || 'noreply@documenso.com',
+        },
+        subject: 'Signing Complete!',
+        html: render(template),
+        text: render(template, { plainText: true }),
+      });
+    }),
+  ]);
+};

packages/lib/server-only/document/send-document.tsx

@@ -3,13 +3,15 @@ import { createElement } from 'react';
 import { mailer } from '@documenso/email/mailer';
 import { render } from '@documenso/email/render';
 import { DocumentInviteEmailTemplate } from '@documenso/email/templates/document-invite';
+import { FROM_ADDRESS, FROM_NAME } from '@documenso/lib/constants/email';
+import { renderCustomEmailTemplate } from '@documenso/lib/utils/render-custom-email-template';
 import { prisma } from '@documenso/prisma';
 import { DocumentStatus, SendStatus } from '@documenso/prisma/client';
 
-export interface SendDocumentOptions {
+export type SendDocumentOptions = {
   documentId: number;
   userId: number;
-}
+};
 
 export const sendDocument = async ({ documentId, userId }: SendDocumentOptions) => {
   const user = await prisma.user.findFirstOrThrow({
@@ -25,9 +27,12 @@ export const sendDocument = async ({ documentId, userId }: SendDocumentOptions)
     },
     include: {
       Recipient: true,
+      documentMeta: true,
     },
   });
 
+  const customEmail = document?.documentMeta;
+
   if (!document) {
     throw new Error('Document not found');
   }
@@ -44,6 +49,12 @@ export const sendDocument = async ({ documentId, userId }: SendDocumentOptions)
     document.Recipient.map(async (recipient) => {
       const { email, name } = recipient;
 
+      const customEmailTemplate = {
+        'signer.name': name,
+        'signer.email': email,
+        'document.name': document.title,
+      };
+
       if (recipient.sendStatus === SendStatus.SENT) {
         return;
       }
@@ -57,6 +68,7 @@ export const sendDocument = async ({ documentId, userId }: SendDocumentOptions)
         inviterEmail: user.email,
         assetBaseUrl,
         signDocumentLink,
+        customBody: renderCustomEmailTemplate(customEmail?.message || '', customEmailTemplate),
       });
 
       await mailer.sendMail({
@@ -65,10 +77,12 @@ export const sendDocument = async ({ documentId, userId }: SendDocumentOptions)
           name,
         },
         from: {
-          name: process.env.NEXT_PRIVATE_SMTP_FROM_NAME || 'Documenso',
-          address: process.env.NEXT_PRIVATE_SMTP_FROM_ADDRESS || 'noreply@documenso.com',
+          name: FROM_NAME,
+          address: FROM_ADDRESS,
         },
-        subject: 'Please sign this document',
+        subject: customEmail?.subject
+          ? renderCustomEmailTemplate(customEmail.subject, customEmailTemplate)
+          : 'Please sign this document',
         html: render(template),
         text: render(template, { plainText: true }),
       });

packages/lib/server-only/document/send-pending-email.ts

@@ -0,0 +1,64 @@
+import { createElement } from 'react';
+
+import { mailer } from '@documenso/email/mailer';
+import { render } from '@documenso/email/render';
+import { DocumentPendingEmailTemplate } from '@documenso/email/templates/document-pending';
+import { prisma } from '@documenso/prisma';
+
+export interface SendPendingEmailOptions {
+  documentId: number;
+  recipientId: number;
+}
+
+export const sendPendingEmail = async ({ documentId, recipientId }: SendPendingEmailOptions) => {
+  const document = await prisma.document.findFirst({
+    where: {
+      id: documentId,
+      Recipient: {
+        some: {
+          id: recipientId,
+        },
+      },
+    },
+    include: {
+      Recipient: {
+        where: {
+          id: recipientId,
+        },
+      },
+    },
+  });
+
+  if (!document) {
+    throw new Error('Document not found');
+  }
+
+  if (document.Recipient.length === 0) {
+    throw new Error('Document has no recipients');
+  }
+
+  const [recipient] = document.Recipient;
+
+  const { email, name } = recipient;
+
+  const assetBaseUrl = process.env.NEXT_PUBLIC_WEBAPP_URL || 'http://localhost:3000';
+
+  const template = createElement(DocumentPendingEmailTemplate, {
+    documentName: document.title,
+    assetBaseUrl,
+  });
+
+  await mailer.sendMail({
+    to: {
+      address: email,
+      name,
+    },
+    from: {
+      name: process.env.NEXT_PRIVATE_SMTP_FROM_NAME || 'Documenso',
+      address: process.env.NEXT_PRIVATE_SMTP_FROM_ADDRESS || 'noreply@documenso.com',
+    },
+    subject: 'Waiting for others to complete signing.',
+    html: render(template),
+    text: render(template, { plainText: true }),
+  });
+};

packages/lib/server-only/document/update-document.ts

@@ -0,0 +1,21 @@
+'use server';
+
+import { Prisma } from '@prisma/client';
+
+import { prisma } from '@documenso/prisma';
+
+export type UpdateDocumentOptions = {
+  documentId: number;
+  data: Prisma.DocumentUpdateInput;
+};
+
+export const updateDocument = async ({ documentId, data }: UpdateDocumentOptions) => {
+  return await prisma.document.update({
+    where: {
+      id: documentId,
+    },
+    data: {
+      ...data,
+    },
+  });
+};

packages/lib/server-only/document/viewed-document.ts

@@ -14,7 +14,6 @@ export const viewedDocument = async ({ token }: ViewedDocumentOptions) => {
   });
 
   if (!recipient) {
-    console.warn(`No recipient found for token ${token}`);
     return;
   }
 

packages/lib/server-only/feature-flags/all.ts

@@ -0,0 +1,51 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+import { getToken } from 'next-auth/jwt';
+
+import { LOCAL_FEATURE_FLAGS } from '@documenso/lib/constants/feature-flags';
+import PostHogServerClient from '@documenso/lib/server-only/feature-flags/get-post-hog-server-client';
+
+import { extractDistinctUserId, mapJwtToFlagProperties } from './get';
+
+/**
+ * Get all the evaluated feature flags based on the current user if possible.
+ */
+export default async function handlerFeatureFlagAll(req: Request) {
+  const requestHeaders = Object.fromEntries(req.headers.entries());
+
+  const nextReq = new NextRequest(req, {
+    headers: requestHeaders,
+  });
+
+  const token = await getToken({ req: nextReq });
+
+  const postHog = PostHogServerClient();
+
+  // Return the local feature flags if PostHog is not enabled, true by default.
+  // The front end should not call this API if PostHog is not enabled to reduce network requests.
+  if (!postHog) {
+    return NextResponse.json(LOCAL_FEATURE_FLAGS);
+  }
+
+  const distinctId = extractDistinctUserId(token, nextReq);
+
+  const featureFlags = await postHog.getAllFlags(distinctId, mapJwtToFlagProperties(token));
+
+  const res = NextResponse.json(featureFlags);
+
+  res.headers.set('Cache-Control', 'public, s-maxage=60, stale-while-revalidate=300');
+
+  const origin = req.headers.get('origin');
+
+  if (origin) {
+    if (origin.startsWith(process.env.NEXT_PUBLIC_WEBAPP_URL ?? 'http://localhost:3000')) {
+      res.headers.set('Access-Control-Allow-Origin', origin);
+    }
+
+    if (origin.startsWith(process.env.NEXT_PUBLIC_MARKETING_URL ?? 'http://localhost:3001')) {
+      res.headers.set('Access-Control-Allow-Origin', origin);
+    }
+  }
+
+  return res;
+}

packages/lib/server-only/feature-flags/get-post-hog-server-client.ts

@@ -0,0 +1,16 @@
+import { PostHog } from 'posthog-node';
+
+import { extractPostHogConfig } from '@documenso/lib/constants/feature-flags';
+
+export default function PostHogServerClient() {
+  const postHogConfig = extractPostHogConfig();
+
+  if (!postHogConfig) {
+    return null;
+  }
+
+  return new PostHog(postHogConfig.key, {
+    host: postHogConfig.host,
+    fetch: async (...args) => fetch(...args),
+  });
+}

packages/lib/server-only/feature-flags/get-server-component-feature-flag.ts

@@ -0,0 +1,26 @@
+import { headers } from 'next/headers';
+
+import { getAllFlags, getFlag } from '@documenso/lib/universal/get-feature-flag';
+
+/**
+ * Evaluate whether a flag is enabled for the current user in a server component.
+ *
+ * @param flag The flag to evaluate.
+ * @returns Whether the flag is enabled, or the variant value of the flag.
+ */
+export const getServerComponentFlag = async (flag: string) => {
+  return await getFlag(flag, {
+    requestHeaders: Object.fromEntries(headers().entries()),
+  });
+};
+
+/**
+ * Get all feature flags for the current user from a server component.
+ *
+ * @returns A record of flags and their values for the user derived from the headers.
+ */
+export const getServerComponentAllFlags = async () => {
+  return await getAllFlags({
+    requestHeaders: Object.fromEntries(headers().entries()),
+  });
+};

packages/lib/server-only/feature-flags/get.ts

@@ -0,0 +1,129 @@
+import { NextRequest, NextResponse } from 'next/server';
+
+import { nanoid } from 'nanoid';
+import { JWT, getToken } from 'next-auth/jwt';
+
+import { LOCAL_FEATURE_FLAGS, extractPostHogConfig } from '@documenso/lib/constants/feature-flags';
+import PostHogServerClient from '@documenso/lib/server-only/feature-flags/get-post-hog-server-client';
+
+/**
+ * Evaluate a single feature flag based on the current user if possible.
+ *
+ * @param req The request with a query parameter `flag`. Example request URL: /api/feature-flag/get?flag=flag-name
+ * @returns A Response with the feature flag value.
+ */
+export default async function handleFeatureFlagGet(req: Request) {
+  const { searchParams } = new URL(req.url ?? '');
+  const flag = searchParams.get('flag');
+
+  const requestHeaders = Object.fromEntries(req.headers.entries());
+
+  const nextReq = new NextRequest(req, {
+    headers: requestHeaders,
+  });
+
+  const token = await getToken({ req: nextReq });
+
+  if (!flag) {
+    return NextResponse.json(
+      {
+        error: 'Missing flag query parameter.',
+      },
+      {
+        status: 400,
+        headers: {
+          'content-type': 'application/json',
+        },
+      },
+    );
+  }
+
+  const postHog = PostHogServerClient();
+
+  // Return the local feature flags if PostHog is not enabled, true by default.
+  // The front end should not call this API if PostHog is disabled to reduce network requests.
+  if (!postHog) {
+    return NextResponse.json(LOCAL_FEATURE_FLAGS[flag] ?? true);
+  }
+
+  const distinctId = extractDistinctUserId(token, nextReq);
+
+  const featureFlag = await postHog.getFeatureFlag(flag, distinctId, mapJwtToFlagProperties(token));
+
+  const res = NextResponse.json(featureFlag);
+
+  res.headers.set('Cache-Control', 'public, s-maxage=60, stale-while-revalidate=300');
+
+  const origin = req.headers.get('Origin');
+
+  if (origin) {
+    if (origin.startsWith(process.env.NEXT_PUBLIC_WEBAPP_URL ?? 'http://localhost:3000')) {
+      res.headers.set('Access-Control-Allow-Origin', origin);
+    }
+
+    if (origin.startsWith(process.env.NEXT_PUBLIC_MARKETING_URL ?? 'http://localhost:3001')) {
+      res.headers.set('Access-Control-Allow-Origin', origin);
+    }
+  }
+
+  return res;
+}
+
+/**
+ * Map a JWT to properties which are consumed by PostHog to evaluate feature flags.
+ *
+ * @param jwt The JWT of the current user.
+ * @returns A map of properties which are consumed by PostHog.
+ */
+export const mapJwtToFlagProperties = (
+  jwt?: JWT | null,
+): {
+  groups?: Record<string, string>;
+  personProperties?: Record<string, string>;
+  groupProperties?: Record<string, Record<string, string>>;
+} => {
+  return {
+    personProperties: {
+      email: jwt?.email ?? '',
+    },
+    groupProperties: {
+      // Add properties to group users into different groups, such as billing plan.
+    },
+  };
+};
+
+/**
+ * Extract a distinct ID from a JWT and request.
+ *
+ * Will fallback to a random ID if no ID could be extracted from either the JWT or request.
+ *
+ * @param jwt The JWT of the current user.
+ * @param request Request potentially containing a PostHog `distinct_id` cookie.
+ * @returns A distinct user ID.
+ */
+export const extractDistinctUserId = (jwt: JWT | null, request: NextRequest): string => {
+  const config = extractPostHogConfig();
+
+  const email = jwt?.email;
+  const userId = jwt?.id.toString();
+
+  let fallbackDistinctId = nanoid();
+
+  if (config) {
+    try {
+      const postHogCookie = JSON.parse(
+        request.cookies.get(`ph_${config.key}_posthog`)?.value ?? '',
+      );
+
+      const postHogDistinctId = postHogCookie['distinct_id'];
+
+      if (typeof postHogDistinctId === 'string') {
+        fallbackDistinctId = postHogDistinctId;
+      }
+    } catch {
+      // Do nothing.
+    }
+  }
+
+  return email ?? userId ?? fallbackDistinctId;
+};

packages/lib/server-only/field/get-fields-for-document.ts

@@ -13,6 +13,9 @@ export const getFieldsForDocument = async ({ documentId, userId }: GetFieldsForD
         userId,
       },
     },
+    orderBy: {
+      id: 'asc',
+    },
   });
 
   return fields;

packages/lib/server-only/field/set-fields-for-document.ts

@@ -1,11 +1,12 @@
 import { prisma } from '@documenso/prisma';
-import { SendStatus, SigningStatus } from '@documenso/prisma/client';
+import { FieldType, SendStatus, SigningStatus } from '@documenso/prisma/client';
 
 export interface SetFieldsForDocumentOptions {
   userId: number;
   documentId: number;
   fields: {
     id?: number | null;
+    type: FieldType;
     signerEmail: string;
     pageNumber: number;
     pageX: number;
@@ -54,62 +55,56 @@ export const setFieldsForDocument = async ({
 
       return {
         ...field,
-        ...existing,
+        _persisted: existing,
       };
     })
     .filter((field) => {
       return (
-        field.Recipient?.sendStatus !== SendStatus.SENT &&
-        field.Recipient?.signingStatus !== SigningStatus.SIGNED
+        field._persisted?.Recipient?.sendStatus !== SendStatus.SENT &&
+        field._persisted?.Recipient?.signingStatus !== SigningStatus.SIGNED
       );
     });
 
   const persistedFields = await prisma.$transaction(
+    // Disabling as wrapping promises here causes type issues
+    // eslint-disable-next-line @typescript-eslint/promise-function-async
     linkedFields.map((field) =>
-      field.id
-        ? prisma.field.update({
-            where: {
-              id: field.id,
-              recipientId: field.recipientId,
-              documentId,
+      prisma.field.upsert({
+        where: {
+          id: field._persisted?.id ?? -1,
+          documentId,
+        },
+        update: {
+          page: field.pageNumber,
+          positionX: field.pageX,
+          positionY: field.pageY,
+          width: field.pageWidth,
+          height: field.pageHeight,
+        },
+        create: {
+          type: field.type,
+          page: field.pageNumber,
+          positionX: field.pageX,
+          positionY: field.pageY,
+          width: field.pageWidth,
+          height: field.pageHeight,
+          customText: '',
+          inserted: false,
+          Document: {
+            connect: {
+              id: documentId,
             },
-            data: {
-              type: field.type,
-              page: field.pageNumber,
-              positionX: field.pageX,
-              positionY: field.pageY,
-              width: field.pageWidth,
-              height: field.pageHeight,
-            },
-          })
-        : prisma.field.create({
-            data: {
-              // TODO: Rewrite this entire transaction because this is a mess
-              // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-              type: field.type!,
-              page: field.pageNumber,
-              positionX: field.pageX,
-              positionY: field.pageY,
-              width: field.pageWidth,
-              height: field.pageHeight,
-              customText: '',
-              inserted: false,
-
-              Document: {
-                connect: {
-                  id: document.id,
-                },
-              },
-              Recipient: {
-                connect: {
-                  documentId_email: {
-                    documentId: document.id,
-                    email: field.signerEmail,
-                  },
-                },
+          },
+          Recipient: {
+            connect: {
+              documentId_email: {
+                documentId,
+                email: field.signerEmail.toLowerCase(),
               },
             },
-          }),
+          },
+        },
+      }),
     ),
   );
 

packages/lib/server-only/pdf/insert-field-in-pdf.ts

@@ -1,25 +1,31 @@
 import fontkit from '@pdf-lib/fontkit';
-import { readFileSync } from 'fs';
 import { PDFDocument, StandardFonts } from 'pdf-lib';
 
+import {
+  CAVEAT_FONT_PATH,
+  DEFAULT_HANDWRITING_FONT_SIZE,
+  DEFAULT_STANDARD_FONT_SIZE,
+  MIN_HANDWRITING_FONT_SIZE,
+  MIN_STANDARD_FONT_SIZE,
+} from '@documenso/lib/constants/pdf';
 import { FieldType } from '@documenso/prisma/client';
 import { isSignatureFieldType } from '@documenso/prisma/guards/is-signature-field';
 import { FieldWithSignature } from '@documenso/prisma/types/field-with-signature';
 
-const DEFAULT_STANDARD_FONT_SIZE = 15;
-const DEFAULT_HANDWRITING_FONT_SIZE = 50;
-
 export const insertFieldInPDF = async (pdf: PDFDocument, field: FieldWithSignature) => {
+  // Fetch the font file from the public URL.
+  const fontResponse = await fetch(CAVEAT_FONT_PATH);
+  const fontCaveat = await fontResponse.arrayBuffer();
+
   const isSignatureField = isSignatureFieldType(field.type);
 
   pdf.registerFontkit(fontkit);
 
-  const fontCaveat = readFileSync('./public/fonts/caveat.ttf');
-
   const pages = pdf.getPages();
 
+  const minFontSize = isSignatureField ? MIN_HANDWRITING_FONT_SIZE : MIN_STANDARD_FONT_SIZE;
   const maxFontSize = isSignatureField ? DEFAULT_HANDWRITING_FONT_SIZE : DEFAULT_STANDARD_FONT_SIZE;
-  let fontSize = isSignatureField ? DEFAULT_HANDWRITING_FONT_SIZE : DEFAULT_STANDARD_FONT_SIZE;
+  let fontSize = maxFontSize;
 
   const page = pages.at(field.page - 1);
 
@@ -50,11 +56,6 @@ export const insertFieldInPDF = async (pdf: PDFDocument, field: FieldWithSignatu
     let imageWidth = image.width;
     let imageHeight = image.height;
 
-    const initialDimensions = {
-      width: imageWidth,
-      height: imageHeight,
-    };
-
     const scalingFactor = Math.min(fieldWidth / imageWidth, fieldHeight / imageHeight, 1);
 
     imageWidth = imageWidth * scalingFactor;
@@ -76,14 +77,9 @@ export const insertFieldInPDF = async (pdf: PDFDocument, field: FieldWithSignatu
     let textWidth = font.widthOfTextAtSize(field.customText, fontSize);
     const textHeight = font.heightAtSize(fontSize);
 
-    const initialDimensions = {
-      width: textWidth,
-      height: textHeight,
-    };
-
     const scalingFactor = Math.min(fieldWidth / textWidth, fieldHeight / textHeight, 1);
 
-    fontSize = Math.max(fontSize * scalingFactor, maxFontSize);
+    fontSize = Math.max(Math.min(fontSize * scalingFactor, maxFontSize), minFontSize);
     textWidth = font.widthOfTextAtSize(field.customText, fontSize);
 
     const textX = fieldX + (fieldWidth - textWidth) / 2;

packages/lib/server-only/pdf/insert-text-in-pdf.ts

@@ -1,7 +1,8 @@
 import fontkit from '@pdf-lib/fontkit';
-import * as fs from 'fs';
 import { PDFDocument, StandardFonts, rgb } from 'pdf-lib';
 
+import { CAVEAT_FONT_PATH } from '../../constants/pdf';
+
 export async function insertTextInPDF(
   pdfAsBase64: string,
   text: string,
@@ -10,13 +11,15 @@ export async function insertTextInPDF(
   page = 0,
   useHandwritingFont = true,
 ): Promise<string> {
-  const fontBytes = fs.readFileSync('./public/fonts/caveat.ttf');
+  // Fetch the font file from the public URL.
+  const fontResponse = await fetch(CAVEAT_FONT_PATH);
+  const fontCaveat = await fontResponse.arrayBuffer();
 
   const pdfDoc = await PDFDocument.load(pdfAsBase64);
 
   pdfDoc.registerFontkit(fontkit);
 
-  const font = await pdfDoc.embedFont(useHandwritingFont ? fontBytes : StandardFonts.Helvetica);
+  const font = await pdfDoc.embedFont(useHandwritingFont ? fontCaveat : StandardFonts.Helvetica);
 
   const pages = pdfDoc.getPages();
   const pdfPage = pages[page];

packages/lib/server-only/recipient/get-recipients-for-document.ts

@@ -16,6 +16,9 @@ export const getRecipientsForDocument = async ({
         userId,
       },
     },
+    orderBy: {
+      id: 'asc',
+    },
   });
 
   return recipients;

packages/lib/server-only/recipient/set-recipients-for-document.ts

@@ -29,6 +29,11 @@ export const setRecipientsForDocument = async ({
     throw new Error('Document not found');
   }
 
+  const normalizedRecipients = recipients.map((recipient) => ({
+    ...recipient,
+    email: recipient.email.toLowerCase(),
+  }));
+
   const existingRecipients = await prisma.recipient.findMany({
     where: {
       documentId,
@@ -37,13 +42,13 @@ export const setRecipientsForDocument = async ({
 
   const removedRecipients = existingRecipients.filter(
     (existingRecipient) =>
-      !recipients.find(
+      !normalizedRecipients.find(
         (recipient) =>
           recipient.id === existingRecipient.id || recipient.email === existingRecipient.email,
       ),
   );
 
-  const linkedRecipients = recipients
+  const linkedRecipients = normalizedRecipients
     .map((recipient) => {
       const existing = existingRecipients.find(
         (existingRecipient) =>
@@ -52,37 +57,37 @@ export const setRecipientsForDocument = async ({
 
       return {
         ...recipient,
-        ...existing,
+        _persisted: existing,
       };
     })
     .filter((recipient) => {
       return (
-        recipient.sendStatus !== SendStatus.SENT && recipient.signingStatus !== SigningStatus.SIGNED
+        recipient._persisted?.sendStatus !== SendStatus.SENT &&
+        recipient._persisted?.signingStatus !== SigningStatus.SIGNED
       );
     });
 
   const persistedRecipients = await prisma.$transaction(
+    // Disabling as wrapping promises here causes type issues
+    // eslint-disable-next-line @typescript-eslint/promise-function-async
     linkedRecipients.map((recipient) =>
-      recipient.id
-        ? prisma.recipient.update({
-            where: {
-              id: recipient.id,
-              documentId,
-            },
-            data: {
-              name: recipient.name,
-              email: recipient.email,
-              documentId,
-            },
-          })
-        : prisma.recipient.create({
-            data: {
-              name: recipient.name,
-              email: recipient.email,
-              token: nanoid(),
-              documentId,
-            },
-          }),
+      prisma.recipient.upsert({
+        where: {
+          id: recipient._persisted?.id ?? -1,
+          documentId,
+        },
+        update: {
+          name: recipient.name,
+          email: recipient.email,
+          documentId,
+        },
+        create: {
+          name: recipient.name,
+          email: recipient.email,
+          token: nanoid(),
+          documentId,
+        },
+      }),
     ),
   );
 

packages/lib/server-only/share/create-or-get-share-link.ts

@@ -0,0 +1,58 @@
+import { P, match } from 'ts-pattern';
+
+import { prisma } from '@documenso/prisma';
+
+import { alphaid } from '../../universal/id';
+
+export type CreateSharingIdOptions =
+  | {
+      documentId: number;
+      token: string;
+    }
+  | {
+      documentId: number;
+      userId: number;
+    };
+
+export const createOrGetShareLink = async ({ documentId, ...options }: CreateSharingIdOptions) => {
+  const email = await match(options)
+    .with({ token: P.string }, async ({ token }) => {
+      return await prisma.recipient
+        .findFirst({
+          where: {
+            documentId,
+            token,
+          },
+        })
+        .then((recipient) => recipient?.email);
+    })
+    .with({ userId: P.number }, async ({ userId }) => {
+      return await prisma.user
+        .findFirst({
+          where: {
+            id: userId,
+          },
+        })
+        .then((user) => user?.email);
+    })
+    .exhaustive();
+
+  if (!email) {
+    throw new Error('Unable to create share link for document with the given email');
+  }
+
+  return await prisma.documentShareLink.upsert({
+    where: {
+      documentId_email: {
+        email,
+        documentId,
+      },
+    },
+    create: {
+      email,
+      documentId,
+      slug: alphaid(14),
+    },
+    update: {},
+  });
+};

packages/lib/server-only/share/get-recipient-or-sender-by-share-link-slug.ts

@@ -0,0 +1,42 @@
+import { prisma } from '@documenso/prisma';
+
+export type GetRecipientOrSenderByShareLinkSlugOptions = {
+  slug: string;
+};
+
+export const getRecipientOrSenderByShareLinkSlug = async ({
+  slug,
+}: GetRecipientOrSenderByShareLinkSlugOptions) => {
+  const { documentId, email } = await prisma.documentShareLink.findFirstOrThrow({
+    where: {
+      slug,
+    },
+  });
+
+  const recipient = await prisma.recipient.findFirst({
+    where: {
+      documentId,
+      email,
+    },
+    include: {
+      Signature: true,
+    },
+  });
+
+  if (recipient) {
+    return recipient;
+  }
+
+  const sender = await prisma.user.findFirst({
+    where: {
+      Document: { some: { id: documentId } },
+      email,
+    },
+  });
+
+  if (sender) {
+    return sender;
+  }
+
+  throw new Error('Recipient or sender not found');
+};

packages/lib/server-only/share/get-share-link-by-slug.ts

@@ -0,0 +1,13 @@
+import { prisma } from '@documenso/prisma';
+
+export type GetShareLinkBySlugOptions = {
+  slug: string;
+};
+
+export const getShareLinkBySlug = async ({ slug }: GetShareLinkBySlugOptions) => {
+  return await prisma.documentShareLink.findFirstOrThrow({
+    where: {
+      slug,
+    },
+  });
+};

packages/lib/server-only/subscription/get-subscription-by-user-id.ts

@@ -6,7 +6,7 @@ export type GetSubscriptionByUserIdOptions = {
   userId: number;
 };
 
-export const getSubscriptionByUserId = ({ userId }: GetSubscriptionByUserIdOptions) => {
+export const getSubscriptionByUserId = async ({ userId }: GetSubscriptionByUserIdOptions) => {
   return prisma.subscription.findFirst({
     where: {
       userId,

packages/lib/server-only/user/update-password.ts

@@ -7,9 +7,14 @@ import { SALT_ROUNDS } from '../../constants/auth';
 export type UpdatePasswordOptions = {
   userId: number;
   password: string;
+  currentPassword: string;
 };
 
-export const updatePassword = async ({ userId, password }: UpdatePasswordOptions) => {
+export const updatePassword = async ({
+  userId,
+  password,
+  currentPassword,
+}: UpdatePasswordOptions) => {
   // Existence check
   const user = await prisma.user.findFirstOrThrow({
     where: {
@@ -17,23 +22,29 @@ export const updatePassword = async ({ userId, password }: UpdatePasswordOptions
     },
   });
 
-  const hashedPassword = await hash(password, SALT_ROUNDS);
-
-  if (user.password) {
-    // Compare the new password with the old password
-    const isSamePassword = await compare(password, user.password);
-
-    if (isSamePassword) {
-      throw new Error('Your new password cannot be the same as your old password.');
-    }
+  if (!user.password) {
+    throw new Error('User has no password');
   }
 
+  const isCurrentPasswordValid = await compare(currentPassword, user.password);
+  if (!isCurrentPasswordValid) {
+    throw new Error('Current password is incorrect.');
+  }
+
+  // Compare the new password with the old password
+  const isSamePassword = await compare(password, user.password);
+  if (isSamePassword) {
+    throw new Error('Your new password cannot be the same as your old password.');
+  }
+
+  const hashedNewPassword = await hash(password, SALT_ROUNDS);
+
   const updatedUser = await prisma.user.update({
     where: {
       id: userId,
     },
     data: {
-      password: hashedPassword,
+      password: hashedNewPassword,
     },
   });
 

packages/lib/types/font.d.ts

@@ -0,0 +1 @@
+declare module '*.ttf';

packages/lib/universal/base64.ts

@@ -0,0 +1 @@
+export * from '@scure/base';

packages/lib/universal/generate-twitter-intent.ts

@@ -0,0 +1,5 @@
+export const generateTwitterIntent = (text: string, shareUrl: string) => {
+  return `https://twitter.com/intent/tweet?text=${encodeURIComponent(
+    text,
+  )}%0A%0A${encodeURIComponent(shareUrl)}`;
+};

packages/lib/universal/get-feature-flag.ts

@@ -0,0 +1,104 @@
+import { z } from 'zod';
+
+import {
+  TFeatureFlagValue,
+  ZFeatureFlagValueSchema,
+} from '@documenso/lib/client-only/providers/feature-flag.types';
+import { APP_BASE_URL } from '@documenso/lib/constants/app';
+import { LOCAL_FEATURE_FLAGS, isFeatureFlagEnabled } from '@documenso/lib/constants/feature-flags';
+
+/**
+ * Evaluate whether a flag is enabled for the current user.
+ *
+ * @param flag The flag to evaluate.
+ * @param options See `GetFlagOptions`.
+ * @returns Whether the flag is enabled, or the variant value of the flag.
+ */
+export const getFlag = async (
+  flag: string,
+  options?: GetFlagOptions,
+): Promise<TFeatureFlagValue> => {
+  const requestHeaders = options?.requestHeaders ?? {};
+
+  if (!isFeatureFlagEnabled()) {
+    return LOCAL_FEATURE_FLAGS[flag] ?? true;
+  }
+
+  const url = new URL(`${APP_BASE_URL}/api/feature-flag/get`);
+  url.searchParams.set('flag', flag);
+
+  const response = await fetch(url, {
+    headers: {
+      ...requestHeaders,
+    },
+    next: {
+      revalidate: 60,
+    },
+  })
+    .then(async (res) => res.json())
+    .then((res) => ZFeatureFlagValueSchema.parse(res))
+    .catch(() => false);
+
+  return response;
+};
+
+/**
+ * Get all feature flags for the current user if possible.
+ *
+ * @param options See `GetFlagOptions`.
+ * @returns A record of flags and their values for the user derived from the headers.
+ */
+export const getAllFlags = async (
+  options?: GetFlagOptions,
+): Promise<Record<string, TFeatureFlagValue>> => {
+  const requestHeaders = options?.requestHeaders ?? {};
+
+  if (!isFeatureFlagEnabled()) {
+    return LOCAL_FEATURE_FLAGS;
+  }
+
+  const url = new URL(`${APP_BASE_URL}/api/feature-flag/all`);
+
+  return fetch(url, {
+    headers: {
+      ...requestHeaders,
+    },
+    next: {
+      revalidate: 60,
+    },
+  })
+    .then(async (res) => res.json())
+    .then((res) => z.record(z.string(), ZFeatureFlagValueSchema).parse(res))
+    .catch(() => LOCAL_FEATURE_FLAGS);
+};
+
+/**
+ * Get all feature flags for anonymous users.
+ *
+ * @returns A record of flags and their values.
+ */
+export const getAllAnonymousFlags = async (): Promise<Record<string, TFeatureFlagValue>> => {
+  if (!isFeatureFlagEnabled()) {
+    return LOCAL_FEATURE_FLAGS;
+  }
+
+  const url = new URL(`${APP_BASE_URL}/api/feature-flag/all`);
+
+  return fetch(url, {
+    next: {
+      revalidate: 60,
+    },
+  })
+    .then(async (res) => res.json())
+    .then((res) => z.record(z.string(), ZFeatureFlagValueSchema).parse(res))
+    .catch(() => LOCAL_FEATURE_FLAGS);
+};
+
+interface GetFlagOptions {
+  /**
+   * The headers to attach to the request to evaluate flags.
+   *
+   * The authenticated user will be derived from the headers if possible.
+   */
+  requestHeaders: Record<string, string>;
+}

packages/lib/universal/id.ts

@@ -1,5 +1,5 @@
 import { customAlphabet } from 'nanoid';
 
-export const alphaid = customAlphabet('0123456789abcdefghijklmnopqrstuvwxyz', 10);
+export const alphaid = customAlphabet('0123456789abcdefghijklmnopqrstuvwxyz', 21);
 
 export { nanoid } from 'nanoid';

packages/lib/universal/upload/server-actions.ts

@@ -17,7 +17,7 @@ import { alphaid } from '../id';
 export const getPresignPostUrl = async (fileName: string, contentType: string) => {
   const client = getS3Client();
 
-  const user = await getServerComponentSession();
+  const { user } = await getServerComponentSession();
 
   // Get the basename and extension for the file
   const { name, ext } = path.parse(fileName);

packages/lib/utils/fields.ts

@@ -0,0 +1,41 @@
+import { Field } from '@documenso/prisma/client';
+
+/**
+ * Sort the fields by the Y position on the document.
+ */
+export const sortFieldsByPosition = (fields: Field[]): Field[] => {
+  const clonedFields: Field[] = JSON.parse(JSON.stringify(fields));
+
+  // Sort by page first, then position on page second.
+  return clonedFields.sort((a, b) => a.page - b.page || Number(a.positionY) - Number(b.positionY));
+};
+
+/**
+ * Validate whether all the provided fields are inserted.
+ *
+ * If there are any non-inserted fields it will be highlighted and scrolled into view.
+ *
+ * @returns `true` if all fields are inserted, `false` otherwise.
+ */
+export const validateFieldsInserted = (fields: Field[]): boolean => {
+  const fieldCardElements = document.getElementsByClassName('field-card-container');
+
+  // Attach validate attribute on all fields.
+  Array.from(fieldCardElements).forEach((element) => {
+    element.setAttribute('data-validate', 'true');
+  });
+
+  const uninsertedFields = sortFieldsByPosition(fields.filter((field) => !field.inserted));
+
+  const firstUninsertedField = uninsertedFields[0];
+
+  const firstUninsertedFieldElement =
+    firstUninsertedField && document.getElementById(`field-${firstUninsertedField.id}`);
+
+  if (firstUninsertedFieldElement) {
+    firstUninsertedFieldElement.scrollIntoView({ behavior: 'smooth', block: 'center' });
+    return false;
+  }
+
+  return uninsertedFields.length === 0;
+};

packages/lib/utils/render-custom-email-template.ts

@@ -0,0 +1,12 @@
+export const renderCustomEmailTemplate = <T extends Record<string, string>>(
+  template: string,
+  variables: T,
+): string => {
+  return template.replace(/\{(\S+)\}/g, (_, key) => {
+    if (key in variables) {
+      return variables[key];
+    }
+
+    return key;
+  });
+};