import { CrystalAssets } from "../src/game/rom/assets";
import { generatePartyMon } from "../src/game/party/pokemon";
import { GameWorld } from "../src/game/world/world";
import { martFixtureWorld } from "./mart-fixture";

// Test-only script on an already accessible clerk. The actual trainer party,
// class attributes, moves and battle text are read from the local ROM.
export function trainerFixtureWorld(assets: CrystalAssets, tail = [0x60, 0x33, 0x00, 0x01, 0x91], lose = false, winText = false) {
  const clerk = assets.map("26:4").objects[0];
  // Place the synthetic script in Joey's bank to test winlosstext's near pointer.
  if (winText) clerk.script = 0x68 * 0x4000 + 0x3f00;
  assets.reader.bytes.set([
    0x64, ...(winText ? [0xa2, 0x58] : [0, 0]), 0, 0, // Joey beaten text or default
    0x5e, 22, 1, // loadtrainer YOUNGSTER, JOEY1
    ...(lose ? [0x1e, 3, 1] : []), // loadvar VAR_BATTLETYPE, BATTLETYPE_CANLOSE
    0x5f, ...tail,
  ], clerk.script);
  const world = martFixtureWorld(assets);
  const mon = generatePartyMon(assets.pokemon, {
    species: 155, level: lose ? 2 : 50, item: 0, otId: world.playerId,
    ot: "CHRIS", dvs: 0x823b, caughtData: 0,
  });
  mon.moves = [33, 0, 0, 0];
  mon.pp = [35, 0, 0, 0];
  if (lose) mon.hp = 1;
  world.state.party = [mon];
  world.state.pokedex.seen.add(155);
  world.state.pokedex.caught.add(155);
  return world;
}


/** Route 30 is enabled in production; only the start (below Bug Catcher
 * Don's sight line, with a level 20 Totodile) is a test fixture. */
export function route30FixtureWorld(assets: CrystalAssets) {
  let seed = 7;
  const world = new GameWorld(assets, () => new Date("2026-09-22T12:00:00"), () => {
    seed = (seed * 1103515245 + 12345) >>> 0;
    return (seed >>> 16) & 255;
  });
  const mon = generatePartyMon(assets.pokemon, {
    species: 158, level: 20, item: 0, otId: world.playerId,
    ot: "CHRIS", dvs: 0xffff, caughtData: 0,
  });
  mon.moves = [10, 0, 0, 0]; // Scratch
  mon.pp = [35, 0, 0, 0];
  world.state.party = [mon];
  world.state.pokedex.seen.add(158);
  world.state.pokedex.caught.add(158);
  world.restore({ ...world.save(), map: "26:1", x: 1, y: 11, direction: "up" });
  return world;
}