import {createRenderEffects} from './render-effects.mjs';
import {createCameraNavigation,framePose} from './camera-navigation.mjs?v=31-camera-presets';
import {createAssetInspector} from './asset-inspector.mjs?v=29-platform2';
import * as THREE from 'three';
import {GLTFLoader} from 'three/addons/loaders/GLTFLoader.js';
import {OrbitControls} from 'three/addons/controls/OrbitControls.js';
import {MeshoptDecoder} from './vendor/meshopt_decoder.module.js';
import {attachNetworkStyle,DEFAULT_STYLE} from './network-style.mjs?v=33-scada-markers';
import {cadToGltf} from './integration.mjs';
import {createAppearance,enhanceMaterials,grain,applyBuildingContext} from './appearance.mjs?v=30-context-opacity';

const HOST_CHANNEL='tjwater:zjb-scene',HOST_VERSION=2,PROJECT_CODE='zjb',MODEL_ID='zjb-water-network-v23';
let net,networkRoot,networkStyle,navigation,inspector;
let mode='network',generation=0,contextVisible=true,roofVisible=true;
let sceneStatus='正在载入三维模型';
let cameraState={active:null,note:'正在准备观察位置',views:[]};
let appearanceState={preset:'day',exposure:.95,contextOpacity:.4,shadows:true,effects:true,quality:'standard'};

function postHost(type,detail={}){
 if(window.parent===window)return;
 window.parent.postMessage({channel:HOST_CHANNEL,version:HOST_VERSION,type,projectCode:PROJECT_CODE,modelId:net?.modelId??MODEL_ID,...detail},window.location.origin);
}
function trustedHostMessage(event){
 const data=event.data;
 return event.origin===window.location.origin&&event.source===window.parent&&data&&typeof data==='object'&&data.channel===HOST_CHANNEL&&data.version===HOST_VERSION&&data.projectCode===PROJECT_CODE&&data.modelId===(net?.modelId??MODEL_ID);
}
function runtimeState(){
 return {
  mode,status:sceneStatus,contextVisible,roofVisible,
  displayMode:networkStyle?.displayMode??'global',
  style:networkStyle?.style??{...DEFAULT_STYLE},
  styleSummary:networkStyle?.summary??{},
  appearance:{...appearanceState},
  camera:{...cameraState,views:cameraState.views.map(view=>({...view}))},
 };
}
function postState(){if(net&&networkStyle)postHost('scene-state',{state:runtimeState()});}
function setStatus(value){sceneStatus=value;postState();}

window.webQA={errors:[],loaded:[],mode:'network',contextVisible};
window.addEventListener('error',event=>{const message=String(event.message||'三维场景运行错误');window.webQA.errors.push(message);postHost('error',{message});});
window.addEventListener('unhandledrejection',event=>{const message=String(event.reason||'三维场景异步任务失败');window.webQA.errors.push(message);postHost('error',{message});});

const manifest=await (await fetch('./manifest.json',{cache:'no-store'})).json();
const viewport=()=>({width:Math.max(240,innerWidth),height:Math.max(240,innerHeight)});
const initialViewport=viewport();
const renderer=new THREE.WebGLRenderer({antialias:true,logarithmicDepthBuffer:false});
renderer.setPixelRatio(Math.min(devicePixelRatio,2));renderer.setSize(initialViewport.width,initialViewport.height);renderer.setClearColor(0xeaf1f8);document.body.append(renderer.domElement);renderer.info.autoReset=false;
const scene=new THREE.Scene();
const camera=new THREE.PerspectiveCamera(42,initialViewport.width/initialViewport.height,.05,10000);
const controls=new OrbitControls(camera,renderer.domElement);
const appearance=createAppearance(renderer,scene);
const effects=createRenderEffects(renderer,scene,camera,initialViewport.width,initialViewport.height);
const loader=new GLTFLoader().setMeshoptDecoder(MeshoptDecoder);
const cache=new Map(),root=new THREE.Group();scene.add(root);

function isBuildingResource(resourceId=''){
 return /^(map_|detail_(roof|facade|interior|ceiling|pump_walls|pump_roof|pump_access))/.test(resourceId);
}
function applyVisibility(){
 root.visible=mode!=='hydraulic';
 for(const object of root.children){
  if(isBuildingResource(object.userData.resourceId))object.visible=contextVisible;
  if(/roof|ceiling/.test(object.userData.resourceId))object.visible=contextVisible&&roofVisible;
 }
 if(mode==='pump')for(const object of root.children)if(['detail_pump_walls','detail_pump_access'].includes(object.userData.resourceId))object.visible=false;
}
function fit(){
 let box=new THREE.Box3();
 if(['network','hydraulic'].includes(mode)&&networkRoot)box.setFromObject(networkRoot);
 else for(const object of root.children)if(object.visible)box.union(new THREE.Box3().setFromObject(object));
 if(mode==='detail')box=new THREE.Box3().setFromObject(root.children.find(object=>object.userData.resourceId==='detail_facade')??root);
 if(mode==='hydraulic'&&net){
  box=new THREE.Box3();
  for(const link of net.links.filter(link=>link.kind==='PUMPS'))for(const point of link.coordinates)box.expandByPoint(new THREE.Vector3(...cadToGltf(point,.35)));
  box.expandByScalar(4);
 }
 if(box.isEmpty())return;
 appearance.frame(box,mode);
 const sphere=box.getBoundingSphere(new THREE.Sphere());controls.target.copy(sphere.center);
 camera.up.copy(new THREE.Vector3(0,1,0));
 camera.position.copy(sphere.center).add(new THREE.Vector3(.65,.72,1).normalize().multiplyScalar(sphere.radius*3.1/Math.min(1,camera.aspect)));
 camera.near=Math.max(.005,sphere.radius/5000);camera.far=sphere.radius*30+100;camera.updateProjectionMatrix();controls.update();
}
async function load(id){
 if(!cache.has(id)){
  const asset=manifest.assets.find(item=>item.id===id);
  if(!asset)throw Error('场景清单中不存在资源：'+id);
  cache.set(id,loader.loadAsync(asset.file).then(gltf=>{
   enhanceMaterials(gltf.scene);gltf.scene.userData.assetId=asset.logicalId??asset.assetId;gltf.scene.userData.resourceId=id;
   gltf.scene.traverse(object=>{if(object.isMesh)for(const material of Array.isArray(object.material)?object.material:[object.material])material.userData.original={opacity:material.opacity,transparent:material.transparent,depthWrite:material.depthWrite};});
   return gltf.scene;
  }));
 }
 return cache.get(id);
}
async function show(next,{frame=true}={}){
 if(!['network','hydraulic','map','detail','pump','meters'].includes(next))throw Error('不支持的场景模式：'+next);
 const token=++generation;mode=next;let ids=next==='network'?manifest.networkContext:manifest.mapDefault;
 if(next==='detail')ids=[...manifest.mapDefault.filter(id=>!['map_roof','map_facade'].includes(id)),'detail_roof','detail_facade','detail_interior','detail_ceiling'];
 if(next==='pump')ids=['detail_pump_walls','detail_pump_access','detail_pump_auxiliary','detail_pump_piping_reference',...manifest.assets.filter(asset=>asset.id.startsWith('physical_')).map(asset=>asset.id)];
 if(next==='meters')ids=['meter_dn150','valve_dn250','pump_symbol'];
 setStatus('正在载入 '+ids.length+' 组场景资源');
 const objects=await Promise.all(ids.map(load));if(token!==generation)return;
 root.clear();objects.forEach((object,index)=>{
  object.position.set(next==='meters'?index*1.5:0,0,0);object.visible=true;root.add(object);
  object.traverse(mesh=>{if(mesh.isMesh)for(const material of Array.isArray(mesh.material)?mesh.material:[mesh.material])applyBuildingContext(material,['network','hydraulic'].includes(next),appearanceState.contextOpacity);});
 });
 if(networkRoot)networkRoot.visible=['network','hydraulic'].includes(next);
 networkStyle?.setFocusScope(next==='hydraulic');applyVisibility();inspector?.highlight();if(frame)fit();
 window.webQA.loaded=ids;window.webQA.mode=next;
 setStatus(next==='pump'?'六泵实体与 CAD 管路参考，接口配准待核':next==='meters'?'设备样件，主管不包含在样件内':['network','hydraulic'].includes(next)?'管网实体模型，建筑为透明背景':'已载入 '+ids.length+' 组场景资源');
}
function updateStyle(){appearance.refresh();inspector?.refresh();window.webQA.networkStyle={...networkStyle.summary,style:networkStyle.style};postState();}
function setDisplayMode(value){networkStyle.setDisplayMode(value);navigation?.stop();updateStyle();}
function applyAppearance(patch){
 if(patch.preset!==undefined){if(!['day','studio','evening'].includes(patch.preset))throw Error('不支持的光照场景');appearance.preset(patch.preset);appearanceState.preset=patch.preset;appearanceState.exposure=appearance.state.exposure;}
 if(patch.exposure!==undefined){if(!Number.isFinite(patch.exposure)||patch.exposure<.55||patch.exposure>1.6)throw Error('亮度超出有效范围');appearance.exposure(patch.exposure);appearanceState.exposure=patch.exposure;}
 if(patch.contextOpacity!==undefined){if(!Number.isFinite(patch.contextOpacity)||patch.contextOpacity<0||patch.contextOpacity>1)throw Error('建筑背景透明度超出有效范围');appearanceState.contextOpacity=patch.contextOpacity;for(const object of root.children)object.traverse(mesh=>{if(mesh.isMesh)for(const material of Array.isArray(mesh.material)?mesh.material:[mesh.material])applyBuildingContext(material,['network','hydraulic'].includes(mode),appearanceState.contextOpacity);});appearance.refresh();}
 if(patch.shadows!==undefined){appearance.shadows(Boolean(patch.shadows));appearanceState.shadows=Boolean(patch.shadows);}
 if(patch.effects!==undefined){effects.setEnabled(Boolean(patch.effects));appearanceState.effects=Boolean(patch.effects);}
 if(patch.quality!==undefined){if(!['standard','high'].includes(patch.quality))throw Error('不支持的画质');effects.setQuality(patch.quality);appearanceState.quality=patch.quality;localStorage.setItem('zjb-render-quality-v27',patch.quality);}
 window.webQA.appearance={...appearanceState};
 postState();
}
function toggleContext(){contextVisible=!contextVisible;window.webQA.contextVisible=contextVisible;applyVisibility();appearance.refresh();postState();}
function toggleRoof(){roofVisible=!roofVisible;applyVisibility();appearance.refresh();postState();}
function resizeView(){const current=viewport();camera.aspect=current.width/current.height;camera.updateProjectionMatrix();renderer.setSize(current.width,current.height);effects.resize(current.width,current.height);}
addEventListener('resize',resizeView);

const ray=new THREE.Raycaster();let pointerStart=null,pointerMoved=false;
renderer.domElement.addEventListener('pointerdown',event=>{pointerStart=[event.clientX,event.clientY];pointerMoved=false;});
renderer.domElement.addEventListener('pointermove',event=>{if(pointerStart&&Math.hypot(event.clientX-pointerStart[0],event.clientY-pointerStart[1])>6)pointerMoved=true;});
renderer.domElement.addEventListener('click',event=>{
 if(pointerMoved||!inspector)return;
 const current=viewport();ray.setFromCamera(new THREE.Vector2(event.clientX/current.width*2-1,1-event.clientY/current.height*2),camera);
 const visible=object=>{while(object){if(!object.visible)return false;object=object.parent;}return true;};
 const hits=ray.intersectObjects([...(networkRoot?.visible?[networkRoot]:[]),...(root.visible?[root]:[])],true).filter(hit=>visible(hit.object));
 for(const hit of hits){
  let data=hit.object.userData.instances?.[hit.instanceId];
  if(!data){let object=hit.object;while(object.parent&&!object.userData.inpId&&!object.userData.hostLinkId&&!object.userData.assetId)object=object.parent;data=object.userData;}
  if(data.assetId){try{inspector.select(data.assetId);window.webQA.picked=data.assetId;break;}catch{}}
 }
});

let locateRequest=0;
async function locateAsset(item){
 const request=++locateRequest;navigation?.stop();const targetMode=net.coordination.scopeLinkIds.includes(item.id)?'hydraulic':'network';const expected=mode!==targetMode?generation+1:generation;
 if(mode!==targetMode)await show(targetMode,{frame:false});if(request!==locateRequest||generation!==expected)return;
 setDisplayMode(targetMode==='hydraulic'?'coordinated':'global');contextVisible=targetMode!=='hydraulic';applyVisibility();
 const box=inspector.bounds(item);if(box.isEmpty())return;box.expandByScalar(item.link?.kind==='PUMPS'?.6:1);
 const pose=framePose(box,camera.aspect,{padding:1.3});camera.up.fromArray(pose.up??[0,1,0]).normalize();controls.target.fromArray(pose.target);camera.position.fromArray(pose.position);camera.far=20000;controls.update();appearance.frame(box,targetMode);inspector.highlight();postState();
}

let lastFrame=performance.now(),frameTimes=[];
renderer.setAnimationLoop(()=>{
 const now=performance.now(),delta=now-lastFrame;lastFrame=now;if(delta<250){frameTimes.push(delta);if(frameTimes.length>120)frameTimes.shift();}
 if(frameTimes.length>=60)window.webQA.performance={samples:frameTimes.length,meanFps:1000/(frameTimes.reduce((sum,value)=>sum+value,0)/frameTimes.length),viewport:viewport(),quality:effects.state.quality};
 renderer.info.reset();navigation?.tick(performance.now());controls.update();const near=Math.max(.02,camera.position.distanceTo(controls.target)/150);
 if(Math.abs(camera.near-near)>.001){camera.near=near;camera.updateProjectionMatrix();}
 effects.render(mode);window.webQA.drawCalls=renderer.info.render.calls;window.webQA.triangles=renderer.info.render.triangles;window.webQA.camera={active:cameraState.active,position:camera.position.toArray(),target:controls.target.toArray(),up:camera.up.toArray()};document.getElementById('qa').textContent=JSON.stringify(window.webQA);
});

net=await (await fetch(manifest.networkModel.metadata,{cache:'no-store'})).json();
const built=await loader.loadAsync(manifest.networkModel.file+'?v='+manifest.networkModel.sha256);networkRoot=built.scene;enhanceMaterials(networkRoot);scene.add(networkRoot);
networkStyle=attachNetworkStyle(networkRoot,net);grain(networkStyle.pipes.material,{frequency:140,amplitude:.00004,variation:.08});
try{const saved=localStorage.getItem('zjb-network-style-v24');if(saved)networkStyle.setStyle(JSON.parse(saved));}catch{}
try{const quality=localStorage.getItem('zjb-render-quality-v27')??'standard';effects.setQuality(quality);appearanceState.quality=quality;}catch{effects.setQuality('standard');}
window.webQA.network={...net.connectivity,meters:net.cadEquipmentBindings.length,modelId:net.modelId,runtimeInpRequired:false};
window.webQA.networkStyle={...networkStyle.summary,style:networkStyle.style};window.webQA.appearance={...appearanceState};
navigation=createCameraNavigation({camera,controls,model:net,networkRoot,root,show,getMode:()=>mode,appearance,getDisplayMode:()=>networkStyle.displayMode,setDisplayMode,onChange(state){
 cameraState={active:state.active,note:state.note,views:state.views.map(view=>({id:view.id,label:view.label,mode:view.mode,note:view.note,saved:view.id.startsWith('saved-')}))};postState();
}});
inspector=createAssetInspector({model:net,networkRoot,scene,style:networkStyle,onLocate:locateAsset,onSelectionChange(selection){postHost('selection-changed',{selection});}});

window.addEventListener('message',async event=>{
 if(!trustedHostMessage(event))return;
 try{
  const data=event.data;
  if(data.type==='results'){
   networkStyle.setResults(data.payload);if(networkStyle.style.mode==='uniform')networkStyle.setStyle({mode:'pressure'});updateStyle();postHost('results-applied',{summary:networkStyle.summary});return;
  }
  if(data.type==='clear-results'){
   networkStyle.clearResults();updateStyle();postHost('results-cleared');return;
  }
  if(data.type!=='command'||!data.command||typeof data.command!=='object')return;
  const command=data.command;
  if(command.name==='set-mode'){navigation.stop();await show(command.mode);}
  else if(command.name==='visit-camera')await navigation.visit(command.viewId);
  else if(command.name==='save-camera')navigation.save(command.label);
  else if(command.name==='remove-camera')navigation.remove(command.viewId);
  else if(command.name==='set-style'){networkStyle.setStyle(command.patch);localStorage.setItem('zjb-network-style-v24',JSON.stringify(networkStyle.style));updateStyle();}
  else if(command.name==='reset-style'){networkStyle.setStyle(DEFAULT_STYLE);localStorage.removeItem('zjb-network-style-v24');updateStyle();}
  else if(command.name==='set-display-mode')setDisplayMode(command.mode);
  else if(command.name==='set-appearance')applyAppearance(command.patch);
  else if(command.name==='toggle-context')toggleContext();
  else if(command.name==='toggle-roof')toggleRoof();
  else if(command.name==='fit-view'){navigation.stop();fit();postState();}
  else if(command.name==='select-asset')inspector.select(command.assetId);
  else if(command.name==='locate-selection')await inspector.locate();
  else if(command.name==='clear-selection')inspector.clear();
  else throw Error('不支持的场景命令');
 }catch(error){const message=error instanceof Error?error.message:String(error);postHost('error',{message});}
});

await navigation.visit('overview');
document.getElementById('boot').hidden=true;
postHost('ready',{nodeIds:net.nodes.map(node=>String(node.id)),linkIds:net.links.map(link=>String(link.id)),state:runtimeState()});