import { env } from 'cloudflare:workers';
import { z } from 'zod';
import { requireAleBridge } from '@/core/ale-auth';
import { recordAleEvent } from '@/core/ale-store';
import { queueSocialEncounter,queueConversationEvent } from '@/core/conversation-store';
import { D1Store } from '@/core/store';
import { applyAuthoritativeAleEvent,execute } from '@/core/service';
import type { RuntimeConfig } from '@/core/types';

const schema=z.object({
 kind:z.string().min(1).max(100),
 payload:z.record(z.unknown()).default({})
}).strict();

const STATEFUL_EVENTS=new Set([
 'bridge.ready',
 'player.login',
 'player.logout',
 'player.snapshot',
 'player.first-login',
 'player.zone',
 'player.map',
 'player.level',
 'player.quest.accept',
 'player.achievement',
 'player.close-call',
 'player.killed-by-creature',
 'player.permanent-death',
 'player.death',
 'player.repop',
 'player.resurrect'
]);

export async function POST(request:Request){
 const config=env as unknown as RuntimeConfig;
 try{
  requireAleBridge(request,config);
  const text=await request.text();if(text.length>40000)return Response.json({error:'Event too large'},{status:413});
  const body=schema.parse(JSON.parse(text));
  const eventId=typeof body.payload.nativeEventId==='string'?body.payload.nativeEventId.slice(0,100):null;
  if(eventId){
   await env.DB!.prepare('CREATE TABLE IF NOT EXISTS native_event_receipts (id TEXT PRIMARY KEY,at INTEGER)').run();
   if(await env.DB!.prepare('SELECT id FROM native_event_receipts WHERE id=?').bind(eventId).first())return Response.json({ok:true,duplicate:true});
  }
  await recordAleEvent(env.DB!,body.kind,body.payload);

  if((body.kind==='player.chat'||body.kind==='player.whisper')&&body.payload.isBot!==true){
   await queueConversationEvent(env.DB!,body.kind,body.payload);
  }

  if(body.kind==='player.snapshot'&&body.payload.roster===true)await queueSocialEncounter(env.DB!,body.payload);

  const store=new D1Store();
  if(STATEFUL_EVENTS.has(body.kind)){
   await applyAuthoritativeAleEvent(store,body.kind,body.payload);
  }

  if(body.kind==='player.zone'&&body.payload.isBot!==true){
   const zone=String(body.payload.zoneName??body.payload.zone??'').slice(0,120);
   if(zone)await execute(store,{type:'worldTrigger',kind:'zone-change',zone,playerName:String(body.payload.name??'').slice(0,40),detail:'Authoritative ALE human-player zone event'},config);
  }

  if(eventId){
   await env.DB!.prepare('INSERT OR IGNORE INTO native_event_receipts VALUES (?,?)').bind(eventId,Math.floor(Date.now()/1000)).run();
   await env.DB!.prepare('DELETE FROM native_event_receipts WHERE at<?').bind(Math.floor(Date.now()/1000)-8*86400).run();
  }
  return Response.json({ok:true});
 }catch(e){
  const message=e instanceof Error?e.message:'ALE event failure';
  return Response.json({error:message},{status:message.startsWith('Unauthorized')?401:400});
 }
}