const test=require('node:test');
const assert=require('node:assert/strict');
const path=require('node:path');
const helpers=require('../utils/list-pagination');
const envelope=(items,total=42,has_more=true)=>({items,total,has_more});
function page(file,api){
 let definition;
 const load=require('./load-module.cjs')({Page:p=>definition=p,wx:{getStorageSync:()=>1,showToast(){}},console,Date,Promise,setTimeout},{'../../utils/request':{api,getImageUrl:v=>v},'../../utils/page-cache':{withDataCache:p=>p}});
 load(path.join(__dirname,'../pages',file));
 return {...definition,data:{...definition.data},setData(values){Object.assign(this.data,values);}};
}
test('songs append once, preserve full total, and retry the failed page',async()=>{
 let fail=true;const calls=[];
 const p=page('lovewords/lovewords.js',{songsList:async({page,page_size})=>{calls.push(page);assert.equal(page_size,20);if(page===1)return envelope([{id:1}]);if(fail)throw Error('offline');return envelope([{id:1},{id:2}],42,false);}});
 await p.loadData();assert.equal(p.data.total,42);
 const originalError=console.error;console.error=()=>{};
 try {await p.loadMore();}finally{console.error=originalError;}
 assert.equal(p.data.page,1);assert.equal(p.data.list.length,1);assert.equal(p.data.moreError,true);
 fail=false;await p.loadMore();assert.deepEqual(calls,[1,2,2]);assert.equal(p.data.list.length,2);assert.equal(p.data.hasMore,false);
 await p.loadMore();assert.equal(calls.length,3);
});
test('refresh invalidates an in-flight next page',()=>{
 const p={data:{list:[]},setData(v){Object.assign(this.data,v);}};
 let t=helpers.startList(p,1);helpers.applyList(p,t,envelope([{id:1}]),[{id:1}],'list');helpers.finishList(p,t);
 const old=helpers.startList(p,2);t=helpers.startList(p,1);
 helpers.applyList(p,t,envelope([{id:9}]),[{id:9}],'list');helpers.finishList(p,t);
 helpers.applyList(p,old,envelope([{id:2}]),[{id:2}],'list');helpers.finishList(p,old);
 assert.deepEqual(p.data.list,[{id:9}]);assert.equal(p.data.page,1);
});
test('album list appends the next page instead of loading all albums',async()=>{
 const calls=[];const p=page('albums/albums.js',{albumList:async({page,page_size})=>{calls.push([page,page_size]);return envelope([{id:page,title:'album'}],21,page===1);}});
 await p.loadAlbums();await p.loadMore();assert.deepEqual(calls,[[1,20],[2,20]]);assert.equal(p.data.albums.length,2);assert.equal(p.data.total,21);
});
test('photos crossing page boundaries stay in the same upload card and retain saved metadata',async()=>{
 const calls=[];const p=page('album/album.js',{photos:async(id,{page,page_size})=>{calls.push([id,page,page_size]);return envelope([{id:page,batch_id:'same',created_by:1,path:page+'.jpg',created_at:'2026-10-11',location:page===1?'old':'second'}],2,page===1);},coupleInfo:async()=>({partner1:{id:1,nickname:'我'},partner2:{id:2,nickname:'TA'}}),photoUpdate:async()=>({success:true})});
 p.data.albumId=8;await p.loadData();
 p.data.editPhotos=p.data.batches[0].photos;p.data.editForm={taken_at:'',location:'saved',activity:''};await p.savePhotoInfo();
 await p.loadMore();assert.deepEqual(calls,[[8,1,20],[8,2,20]]);assert.equal(p.data.batches.length,1);assert.equal(p.data.batches[0].photos.length,2);assert.equal(p.data.batches[0].photos[0].location,'saved');assert.equal(p.data.hasMore,false);
});