const fs=require('fs'),vm=require('vm'),assert=require('assert'),path=require('path')
const source=fs.readFileSync(path.join(__dirname,'../../src/utils/sharing.js'),'utf8').replace(/export /g,'')
const calls=[]
const context={fillRect(){},drawImage(...a){calls.push(['image',...a])},setFillStyle(){},setFontSize(){},fillText(t){calls.push(['text',t])},measureText(t){return {width:t.length*28}},draw(_,cb){cb()}}
const sandbox={wx:{getImageInfo({src,success}){success({path:src,width:500,height:500})},createCanvasContext(){return context},canvasToTempFilePath({success}){success({tempFilePath:'synthetic.png'})}}}
vm.createContext(sandbox);vm.runInContext(source,sandbox)
assert.equal(sandbox.sharingPath(42,false),'/pages/tabBar/welcome?from_user_id=42')
assert.equal(sandbox.sharingPath(42,true),'/pages/home/information?id=42')
for(const id of [0,-1,'bad',1.5]) assert.throws(()=>sandbox.sharingPath(id,true))
;(async()=>{
 await assert.rejects(sandbox.renderSharingPoster({$wx:{}},{},false))
 const profile={nickname:'合成用户',photo:'synthetic-photo.png',qrcode:'synthetic-code.png',introduction:'这是用于离线验证的合成介绍。'.repeat(30),details:'合成城市 · 合成职业'}
 await sandbox.renderSharingPoster({$wx:{}},profile,true)
 assert(calls.some(c=>c[1]==='扫码认识我'))
 assert(calls.some(c=>c[0]==='image'&&c[1]==='synthetic-photo.png'))
 assert(calls.some(c=>c[0]==='text'&&c[1].endsWith('…')))
 calls.length=0
 await sandbox.renderSharingPoster({$wx:{}},profile,false)
 assert(calls.some(c=>c[1]==='扫码加入福恋'))
 assert(!calls.some(c=>c[0]==='image'&&c[1]==='synthetic-photo.png'))
 console.log('PASS: separate destinations, invalid IDs, missing QR, personal/invite content and long-text truncation (offline mocks).')
})().catch(e=>{console.error(e.message);process.exitCode=1})