import type { ExtensionAPI } from "@earendil-works/pi-coding-agent";
import { registerDiceTool } from "./tools/dice";
import { registerDBTools } from "./tools/db";
import { registerSkillCheckTool } from "./tools/skill-check";
import { registerCombatTool } from "./tools/combat";
import { registerLootTool } from "./tools/loot";
import { registerConsumeTool } from "./tools/consume";
import { registerCraftTool } from "./tools/craft";
import { registerTradeTool } from "./tools/trade";
import { registerStatusRuntimeTools } from "./tools/status-runtime";
import { registerLevelUpTool } from "./tools/level-up";
import { registerLegendaryGenTool } from "./tools/legendary-gen";
import { registerWeaponGenTool } from "./tools/weapon-gen";
import { registerArmorGenTool } from "./tools/armor-gen";
import { registerAccessoryGenTool } from "./tools/accessory-gen";
import { registerEquipTools } from "./tools/equip";
import { registerEventLogTools } from "./tools/event-log";
import { registerExplorationTools } from "./tools/exploration";
import { registerGMGuideTool } from "./tools/gm-guide";
import { registerEncounterTool } from "./tools/encounter";
import { registerTraderTool } from "./tools/trader";
import { registerLootGenTool } from "./tools/loot-gen";
import { registerTakeLootTool } from "./tools/take-loot";
import { registerTimeTools, registerSetTimerTool, registerCheckTimersTool } from "./tools/time";
import { registerQuestTools } from "./tools/quest";
import { registerToolHelpTool } from "./tools/tool-help";
import { registerCreateCharacterTool } from "./tools/create-character";
import { registerTimeContextHook } from "./tools/time-context";
import { readFileSync, rmSync, existsSync } from "node:fs";
import { fileURLToPath } from "node:url";
import { dirname, resolve, join } from "node:path";
import os from "node:os";

export default function (pi: ExtensionAPI) {
  registerDiceTool(pi);
  registerDBTools(pi);
  registerSkillCheckTool(pi);
  registerCombatTool(pi);
  registerLootTool(pi);
  registerConsumeTool(pi);
  registerCraftTool(pi);
  registerTradeTool(pi);
  registerStatusRuntimeTools(pi);
  registerLevelUpTool(pi);
  registerLegendaryGenTool(pi);
  registerWeaponGenTool(pi);
  registerArmorGenTool(pi);
  registerAccessoryGenTool(pi);
  registerEquipTools(pi);
  registerEventLogTools(pi);
  registerExplorationTools(pi);
  registerGMGuideTool(pi);
  registerEncounterTool(pi);
  registerTraderTool(pi);
  registerLootGenTool(pi);
  registerTakeLootTool(pi);
  registerTimeTools(pi);
  registerSetTimerTool(pi);
  registerCheckTimersTool(pi);
  registerQuestTools(pi);
  registerToolHelpTool(pi);
  registerCreateCharacterTool(pi);
  registerTimeContextHook(pi);

  pi.on("session_start", async (_event, ctx) => {
    // 读取当前版本号
    let version = "?";
    try {
      const pkg = JSON.parse(readFileSync(join(dirname(fileURLToPath(import.meta.url)), "package.json"), "utf8"));
      version = pkg.version;
    } catch {}
    ctx.ui.notify(`⚙️ Chronika Engine v${version} loaded`, "info");

    // ── 缓存版本自检 ──
    // 检测当前是否运行在 pi 的 tmp 扩展缓存目录中
    const currentFile = fileURLToPath(import.meta.url);
    const currentDir = dirname(currentFile);
    if (currentDir.includes("tmp/extensions/npm/")) {
      try {
        // 读取当前加载版本的 package.json
        const loadedPkg = JSON.parse(
          readFileSync(join(currentDir, "package.json"), "utf8")
        );
        // 读取 npm 安装目录的 package.json
        const npmPkgPath = join(
          os.homedir(),
          ".pi/agent/npm/node_modules/chronika-engine/package.json"
        );
        if (existsSync(npmPkgPath)) {
          const npmPkg = JSON.parse(readFileSync(npmPkgPath, "utf8"));
          if (npmPkg.version !== loadedPkg.version) {
            // 版本不一致 → 清除缓存目录，下次启动加载新版
            const cacheDir = resolve(currentDir, "../.."); // 退到 <hash>/ 目录
            if (cacheDir.includes("tmp/extensions/npm/")) {
              rmSync(cacheDir, { recursive: true, force: true });
            }
            ctx.ui.notify(
              `🔄 Chronika Engine 缓存版本 (${loadedPkg.version}) 与安装版本 (${npmPkg.version}) 不一致，已清除缓存。请重启 Pi 加载新版本。`,
              "warning"
            );
          }
        }
      } catch {
        // 静默失败，不影响扩展加载
      }
    }
  });
}