Recover progressive mobile captures after reload (#1410)

Closes #1409

frontend/dashboard.js

@@ -6430,6 +6430,7 @@
   if (progressiveCaptureHandoff?.open && await ensureIssueCapture()) {
     issueCapture.saveDraft({repository:'', labelIds:[],
       title:progressiveCaptureHandoff.title, body:progressiveCaptureHandoff.body});
+    progressiveCaptureHandoff.complete?.();
     await openCreateIssueSheet(false);
   }
   qs('#create-issue-repository').addEventListener('change', event => {

frontend/progressive-capture.js

@@ -31,6 +31,7 @@ function createProgressiveCapture({
   let saving = null;
   let saved = false;
   let handedOff = false;
+  const checkpointKey = 'stackchain.progressive-capture.v1';
 
   function listen(element, name, callback) {
     element?.addEventListener?.(name, callback);
@@ -41,8 +42,58 @@ function createProgressiveCapture({
     root?.classList.remove('open');
   }
 
+  function readCheckpoints() {
+    try {
+      const record = JSON.parse(storage?.getItem(checkpointKey) || 'null');
+      if (record?.version !== 1 || !Array.isArray(record.items)) return [];
+      return record.items.filter(item => item && typeof item.ownerLogin === 'string' &&
+        typeof item.title === 'string' && typeof item.body === 'string');
+    } catch (_error) { return []; }
+  }
+
+  function readCheckpoint() {
+    const login = String(getLogin() || '').trim();
+    if (!login) return null;
+    return readCheckpoints().find(item => item.ownerLogin === login) || null;
+  }
+
+  function checkpoint() {
+    const ownerLogin = String(getLogin() || '').trim();
+    if (!ownerLogin) return false;
+    try {
+      const items = readCheckpoints().filter(item => item.ownerLogin !== ownerLogin);
+      items.push({
+        ownerLogin,
+        title:String(title?.value || '').slice(0, 255),
+        body:String(body?.value || '').slice(0, 10000),
+      });
+      storage?.setItem(checkpointKey, JSON.stringify({
+        version:1, items,
+      }));
+      return true;
+    } catch (_error) { return false; }
+  }
+
+  function clearCheckpoint(expected) {
+    const current = readCheckpoint();
+    if (!current || current.title !== expected.title || current.body !== expected.body) return false;
+    try {
+      const ownerLogin = String(getLogin() || '').trim();
+      const items = readCheckpoints().filter(item => item.ownerLogin !== ownerLogin);
+      if (items.length) storage?.setItem(checkpointKey, JSON.stringify({version:1, items}));
+      else storage?.removeItem(checkpointKey);
+      return true;
+    } catch (_error) { return false; }
+  }
+
   function open(event) {
     saved = false;
+    const recovered = readCheckpoint();
+    if (recovered) {
+      if (title) title.value = recovered.title;
+      if (body) body.value = recovered.body;
+      if (status) status.textContent = 'Unfinished capture restored from this phone.';
+    }
     if (heading) heading.textContent = 'Capture work';
     root?.classList.add('open');
     title?.focus?.();
@@ -51,10 +102,10 @@ function createProgressiveCapture({
   async function saveDraft() {
     if (saved || saving) return saving;
     save.disabled = true;
-    saving = Promise.resolve().then(() => captures.save({
+    const draft = {title:title?.value || '', body:body?.value || ''};
-      title:title?.value || '', body:body?.value || '',
+    saving = Promise.resolve().then(() => captures.save(draft)).then(() => {
-    })).then(() => {
       saved = true;
+      clearCheckpoint(draft);
       if (title) title.value = '';
       if (body) body.value = '';
       close();
@@ -94,6 +145,8 @@ function createProgressiveCapture({
     listen(save, 'click', saveDraft);
     listen(file, 'click', fileNow);
     listen(cancel, 'click', close);
+    listen(title, 'input', checkpoint);
+    listen(body, 'input', checkpoint);
     return true;
   }
 
@@ -104,6 +157,7 @@ function createProgressiveCapture({
       open:Boolean(root?.classList.contains('open')),
       title:title?.value || '', body:body?.value || '',
     };
+    state.complete = () => clearCheckpoint(state);
     root?.classList.remove('progressive-capture');
     file.disabled = false;
     listeners.forEach(([element, name, callback]) => element?.removeEventListener?.(name, callback));

tests/test_progressive_capture.py

@@ -28,8 +28,12 @@ const button = {dataset:{mobileTask:'new'}, addEventListener(name, callback){lis
 const save = {disabled:false, addEventListener(name, callback){listeners.set('save:'+name, callback);}, removeEventListener(name, callback){if(listeners.get('save:'+name)===callback) listeners.delete('save:'+name);}};
 const file = {disabled:false, addEventListener(){}, removeEventListener(){}};
 const cancel = {addEventListener(){}, removeEventListener(){}};
-const title = {value:'', focused:0, focus(){this.focused++;}};
+const field = name => ({value:'', focused:0, focus(){this.focused++;},
-const body = {value:''};
+  addEventListener(event, callback){listeners.set(name+':'+event, callback);},
+  removeEventListener(event, callback){if(listeners.get(name+':'+event)===callback) listeners.delete(name+':'+event);},
+});
+const title = field('title');
+const body = field('body');
 const heading = {textContent:''};
 const status = {textContent:''};
 const classes = new Set();
@@ -43,15 +47,16 @@ const document = {
   querySelector(selector){return selector==='[data-mobile-task="new"]'?button:(nodes[selector]||null);},
 };
 const values = new Map();
-const storage = {getItem:key=>values.get(key)||null,setItem:(key,value)=>values.set(key,value)};
+const storage = {getItem:key=>values.get(key)||null,setItem:(key,value)=>values.set(key,value),removeItem:key=>values.delete(key)};
 const flow = createProgressiveCapture({document, storage, getLogin:()=> 'timmy', createCaptures:createUnfiledCaptures, createId:()=> 'draft-1', now:()=> 42});
 flow.start();
 listeners.get('new:click')({currentTarget:button});
-title.value='Production outage'; body.value='Investigate mobile reports';
+title.value='Production outage'; listeners.get('title:input')();
+body.value='Investigate mobile reports'; listeners.get('body:input')();
 await listeners.get('save:click')();
 await listeners.get('save:click')();
 const stored=JSON.parse(values.get('stackchain.unfiled-issues.v1'));
-console.log(JSON.stringify({open:classes.has('open'),focused:title.focused,heading:heading.textContent,status:status.textContent,items:stored.items,listeners:[...listeners.keys()]}));
+console.log(JSON.stringify({open:classes.has('open'),focused:title.focused,heading:heading.textContent,status:status.textContent,items:stored.items,listeners:[...listeners.keys()],checkpoint:values.get('stackchain.progressive-capture.v1')||null}));
 """)
 
     assert result == {
@@ -66,7 +71,136 @@ console.log(JSON.stringify({open:classes.has('open'),focused:title.focused,headi
             "body": "Investigate mobile reports",
             "savedAt": 42,
         }],
-        "listeners": ["new:click", "save:click"],
+        "listeners": ["new:click", "save:click", "title:input", "body:input"],
+        "checkpoint": None,
+    }
+
+
+def test_failed_progressive_save_keeps_rendered_fields_and_checkpoint_for_retry():
+    result = run_capture(r"""
+const listeners={};
+const control=name=>({disabled:false,value:'',addEventListener(event,callback){listeners[name+':'+event]=callback;},removeEventListener(){},focus(){this.focused=true;}});
+const button=control('new'); const save=control('save'); const file=control('file'); const cancel=control('cancel');
+const title=control('title'); const body=control('body'); const status={textContent:''}; const classes=new Set();
+const root={classList:{add:name=>classes.add(name),remove:name=>classes.delete(name),contains:name=>classes.has(name)}};
+const nodes={'#create-issue-sheet':root,'#create-issue-title':title,'#create-issue-body':body,
+  '#create-issue-heading':{textContent:''},'#save-unfiled-issue':save,'#file-new-issue':file,
+  '#cancel-new-issue':cancel,'#my-work-action-status':status};
+const document={querySelector:selector=>selector==='[data-mobile-task="new"]'?button:nodes[selector]};
+const values=new Map(); const storage={getItem:key=>values.get(key)||null,setItem:(key,value)=>values.set(key,value),removeItem:key=>values.delete(key)};
+const flow=createProgressiveCapture({document,storage,getLogin:()=>'timmy',createCaptures:()=>({save(){throw new Error('Phone storage is full.');}})});
+flow.start(); listeners['new:click']();
+title.value='Keep title'; listeners['title:input'](); body.value='Keep note'; listeners['body:input']();
+const saved=await listeners['save:click']();
+console.log(JSON.stringify({saved,open:classes.has('open'),title:title.value,body:body.value,status:status.textContent,
+  checkpoint:JSON.parse(values.get('stackchain.progressive-capture.v1'))}));
+""")
+
+    assert result == {
+        "saved": False,
+        "open": True,
+        "title": "Keep title",
+        "body": "Keep note",
+        "status": "Phone storage is full.",
+        "checkpoint": {
+            "version": 1,
+            "items": [{
+                "ownerLogin": "timmy",
+                "title": "Keep title",
+                "body": "Keep note",
+            }],
+        },
+    }
+
+
+def test_progressive_capture_restores_latest_checkpoint_only_for_its_account():
+    result = run_capture(r"""
+const values = new Map();
+const storage = {
+  getItem:key=>values.get(key)||null,
+  setItem:(key,value)=>values.set(key,value),
+  removeItem:key=>values.delete(key),
+};
+function mount(login) {
+  const listeners = new Map();
+  const control = name => ({disabled:false,value:'',
+    addEventListener(event, callback){listeners.set(name+':'+event, callback);},
+    removeEventListener(){},focus(){},
+  });
+  const button=control('new'); const save=control('save'); const file=control('file');
+  const cancel=control('cancel'); const title=control('title'); const body=control('body');
+  const status={textContent:''}; const classes=new Set();
+  const root={classList:{add:name=>classes.add(name),remove:name=>classes.delete(name),contains:name=>classes.has(name)}};
+  const nodes={'#create-issue-sheet':root,'#create-issue-title':title,'#create-issue-body':body,
+    '#create-issue-heading':{textContent:''},'#save-unfiled-issue':save,'#file-new-issue':file,
+    '#cancel-new-issue':cancel,'#my-work-action-status':status};
+  const document={querySelector:selector=>selector==='[data-mobile-task="new"]'?button:nodes[selector]};
+  const flow=createProgressiveCapture({document,storage,getLogin:()=>login,createCaptures:createUnfiledCaptures});
+  flow.start();
+  return {flow,listeners,title,body,status,button};
+}
+const first=mount('timmy'); first.listeners.get('new:click')();
+first.title.value='Production outage'; first.listeners.get('title:input')?.();
+first.body.value='Latest phone note'; first.listeners.get('body:input')?.();
+const restored=mount('timmy'); restored.listeners.get('new:click')();
+const other=mount('alexander'); other.listeners.get('new:click')();
+other.title.value='Alexander note'; other.listeners.get('title:input')?.();
+const timmyAgain=mount('timmy'); timmyAgain.listeners.get('new:click')();
+console.log(JSON.stringify({
+  restored:{title:restored.title.value,body:restored.body.value,status:restored.status.textContent},
+  other:{title:other.title.value,body:other.body.value,status:other.status.textContent},
+  timmyAgain:{title:timmyAgain.title.value,body:timmyAgain.body.value},
+  checkpoint:JSON.parse(values.get('stackchain.progressive-capture.v1') || 'null'),
+}));
+""")
+
+    assert result == {
+        "restored": {
+            "title": "Production outage",
+            "body": "Latest phone note",
+            "status": "Unfinished capture restored from this phone.",
+        },
+        "other": {"title": "Alexander note", "body": "", "status": ""},
+        "timmyAgain": {"title": "Production outage", "body": "Latest phone note"},
+        "checkpoint": {
+            "version": 1,
+            "items": [
+                {"ownerLogin": "timmy", "title": "Production outage", "body": "Latest phone note"},
+                {"ownerLogin": "alexander", "title": "Alexander note", "body": ""},
+            ],
+        },
+    }
+
+
+def test_hydration_handoff_clears_checkpoint_only_after_explicit_completion():
+    result = run_capture(r"""
+const listeners={};
+const control=name=>({disabled:false,value:'',addEventListener(event,callback){listeners[name+':'+event]=callback;},removeEventListener(){},focus(){}});
+const button=control('new'); const save=control('save'); const file=control('file'); const cancel=control('cancel');
+const title=control('title'); const body=control('body'); const root={classList:{add(){},remove(){},contains:()=>true}};
+const nodes={'#create-issue-sheet':root,'#create-issue-title':title,'#create-issue-body':body,
+  '#create-issue-heading':{textContent:''},'#save-unfiled-issue':save,'#file-new-issue':file,
+  '#cancel-new-issue':cancel,'#my-work-action-status':{textContent:''}};
+const document={querySelector:selector=>selector==='[data-mobile-task="new"]'?button:nodes[selector]};
+const values=new Map(); const storage={getItem:key=>values.get(key)||null,setItem:(key,value)=>values.set(key,value),removeItem:key=>values.delete(key)};
+const flow=createProgressiveCapture({document,storage,getLogin:()=>'timmy',createCaptures:createUnfiledCaptures});
+flow.start(); title.value='Hand off'; listeners['title:input'](); body.value='Preserve me'; listeners['body:input']();
+const handoff=flow.handoff();
+const before=JSON.parse(values.get('stackchain.progressive-capture.v1'));
+if (typeof handoff.complete === 'function') handoff.complete();
+console.log(JSON.stringify({before,after:values.get('stackchain.progressive-capture.v1')||null}));
+""")
+
+    assert result == {
+        "before": {
+            "version": 1,
+            "items": [{
+                "ownerLogin": "timmy",
+                "title": "Hand off",
+                "body": "Preserve me",
+            }],
+        },
+        "after": None,
     }
 
 
@@ -109,7 +243,7 @@ console.log(JSON.stringify({filed,requests,open:classes.has('open'),status:statu
         "focused": 2,
         "title": "Keep this",
         "body": "Do not lose this note",
-        "before": ["cancel:click", "file:click", "new:click", "save:click"],
+        "before": ["cancel:click", "file:click", "new:click", "save:click", "title:input"],
         "after": [],
         "handoff": {"open": True, "title": "Keep this", "body": "Do not lose this note"},
         "second": None,
@@ -122,6 +256,7 @@ def test_hydrated_dashboard_adopts_open_progressive_capture_without_losing_field
     assert "const progressiveCaptureHandoff = window.stackchainProgressiveCapture?.handoff?.();" in source
     assert "issueCapture.saveDraft({repository:'', labelIds:[]," in source
     assert "title:progressiveCaptureHandoff.title, body:progressiveCaptureHandoff.body" in source
+    assert "progressiveCaptureHandoff.complete?.();" in source
     assert "await openCreateIssueSheet(false);" in source