Keep adoption transfer codes stable

backend/src/app.ts

@@ -48,6 +48,7 @@ import {
   getBirdById,
   getBirdByPublicProfileCode,
   getOpenBirdTransferCode,
+  getOpenBirdTransferCodeForBird,
   listBirds,
   listDueBirdMilestoneReminders,
   listMemorializedBirds,
@@ -654,6 +655,33 @@ const normalizeBird = (row: BirdRow) => ({
 
 const createBirdTransferCodeValue = () => crypto.randomBytes(12).toString('base64url');
 
+const ensureOpenBirdTransferCode = async (birdId: string, sourceWorkspaceId: number, requestedByUserId: string) => {
+  const existingTransferCode = await getOpenBirdTransferCodeForBird(birdId, sourceWorkspaceId);
+
+  if (existingTransferCode) {
+    return existingTransferCode;
+  }
+
+  for (let attempt = 0; attempt < 3; attempt += 1) {
+    try {
+      return await createBirdTransferCode({
+        code: createBirdTransferCodeValue(),
+        birdId,
+        sourceWorkspaceId,
+        requestedByUserId,
+      });
+    } catch (error) {
+      if (typeof error === 'object' && error && 'code' in error && error.code === '23505' && attempt < 2) {
+        continue;
+      }
+
+      throw error;
+    }
+  }
+
+  return null;
+};
+
 const normalizePublicBirdProfile = (row: BirdRow) => ({
   id: row.id,
   workspaceId: row.workspace_id,
@@ -3272,25 +3300,7 @@ app.post(
         return;
       }
 
-      let transferCode = null;
-
-      for (let attempt = 0; attempt < 3; attempt += 1) {
-        try {
-          transferCode = await createBirdTransferCode({
-            code: createBirdTransferCodeValue(),
-            birdId: sourceBird.id,
-            sourceWorkspaceId: req.auth!.workspace.id,
-            requestedByUserId: req.auth!.user.id,
-          });
-          break;
-        } catch (error) {
-          if (typeof error === 'object' && error && 'code' in error && error.code === '23505' && attempt < 2) {
-            continue;
-          }
-
-          throw error;
-        }
-      }
+      const transferCode = await ensureOpenBirdTransferCode(sourceBird.id, req.auth!.workspace.id, req.auth!.user.id);
 
       if (!transferCode) {
         throw new Error('Unable to create bird transfer code.');
@@ -3312,6 +3322,30 @@ app.post(
   },
 );
 
+app.get('/api/birds/:birdId/transfer-code', requireAuth, requireWriteAccess, requireSessionAuth, requireWorkspaceRole(['owner', 'assistant']), async (req: Request, res: Response, next: NextFunction) => {
+  try {
+    const sourceBird = await getBirdById(req.params.birdId, req.auth!.workspace.id);
+
+    if (!sourceBird) {
+      res.status(404).json({ error: 'Bird not found.' });
+      return;
+    }
+
+    const transferCode = await getOpenBirdTransferCodeForBird(sourceBird.id, req.auth!.workspace.id);
+
+    res.json({
+      transferCode: transferCode
+        ? {
+            code: transferCode.code,
+            bird: normalizeBird(sourceBird),
+          }
+        : null,
+    });
+  } catch (error) {
+    next(error);
+  }
+});
+
 app.post(
   '/api/bird-transfer-codes/:code/accept',
   requireAuth,
@@ -3384,25 +3418,7 @@ app.post(
         return;
       }
 
-      let transferCode = null;
-
-      for (let attempt = 0; attempt < 3; attempt += 1) {
-        try {
-          transferCode = await createBirdTransferCode({
-            code: createBirdTransferCodeValue(),
-            birdId: sourceBird.id,
-            sourceWorkspaceId: req.auth!.workspace.id,
-            requestedByUserId: req.auth!.user.id,
-          });
-          break;
-        } catch (error) {
-          if (typeof error === 'object' && error && 'code' in error && error.code === '23505' && attempt < 2) {
-            continue;
-          }
-
-          throw error;
-        }
-      }
+      const transferCode = await ensureOpenBirdTransferCode(sourceBird.id, req.auth!.workspace.id, req.auth!.user.id);
 
       if (!transferCode) {
         throw new Error('Unable to create bird transfer code.');

backend/src/reports/adoptionReport.ts

@@ -154,8 +154,12 @@ const drawSimpleWeightChart = (doc: PDFKit.PDFDocument, weights: WeightRow[], bi
   }
 
   const latestDate = new Date(`${plottedWeights[plottedWeights.length - 1].recorded_on.slice(0, 10)}T00:00:00Z`);
+  const earliestDate = new Date(`${plottedWeights[0].recorded_on.slice(0, 10)}T00:00:00Z`);
   const startDate = new Date(latestDate);
-  startDate.setUTCDate(startDate.getUTCDate() - 29);
+  startDate.setUTCDate(startDate.getUTCDate() - 13);
+  if (earliestDate > startDate) {
+    startDate.setTime(earliestDate.getTime());
+  }
   const visibleWeights = plottedWeights.filter((entry) => {
     const recordedOn = new Date(`${entry.recorded_on.slice(0, 10)}T00:00:00Z`);
     return recordedOn >= startDate && recordedOn <= latestDate;

backend/src/reports/adoptionReportJob.ts

@@ -12,7 +12,7 @@ import { getSignedS3ObjectUrl } from '../storage/s3Client.js';
 import type { BirdRow } from '../types.js';
 import { renderAdoptionReportPdf } from './adoptionReport.js';
 
-const adoptionReportWeightHistoryDays = 425;
+const adoptionReportWeightHistoryDays = 14;
 
 const parseDataImage = (value: string | null) => {
   if (!value) {

backend/src/repositories/birdRepository.ts

@@ -734,6 +734,22 @@ export const createBirdTransferCode = async ({
   return result.rows[0] ?? null;
 };
 
+export const getOpenBirdTransferCodeForBird = async (birdId: string, sourceWorkspaceId: number) => {
+  const result = await db.query<BirdTransferCodeRow>(
+    `SELECT id, code, bird_id, source_workspace_id, requested_by_user_id, completed_at::text, completed_workspace_id, revoked_at::text, created_at
+     FROM bird_transfer_codes
+     WHERE bird_id = $1
+       AND source_workspace_id = $2
+       AND completed_at IS NULL
+       AND revoked_at IS NULL
+     ORDER BY created_at DESC
+     LIMIT 1`,
+    [birdId, sourceWorkspaceId],
+  );
+
+  return result.rows[0] ?? null;
+};
+
 export const getOpenBirdTransferCode = async (code: string) => {
   const result = await db.query<
     BirdRow & {