import { contextBridge, ipcRenderer } from 'electron';

// 事件订阅管理
const eventSubscriptions: Map<string, (event: unknown, ...args: unknown[]) => void> = new Map();

// 暴露给渲染进程的 API
contextBridge.exposeInMainWorld('electronAPI', {
  // ===========================================================================
  // gRPC 相关 - Keygen
  // ===========================================================================
  grpc: {
    createSession: (params: {
      walletName: string;
      thresholdT: number;
      thresholdN: number;
      initiatorName: string;
    }) => ipcRenderer.invoke('grpc:createSession', params),

    joinSession: (params: {
      sessionId: string;
      partyId: string;
      joinToken: string;
      walletName?: string;
    }) => ipcRenderer.invoke('grpc:joinSession', params),

    validateInviteCode: (code: string) =>
      ipcRenderer.invoke('grpc:validateInviteCode', { code }),

    getSessionStatus: (sessionId: string) =>
      ipcRenderer.invoke('grpc:getSessionStatus', { sessionId }),

    subscribeSessionEvents: (sessionId: string, callback: (event: unknown) => void) => {
      const channel = `session:events:${sessionId}`;
      const listener = (_event: unknown, data: unknown) => callback(data);
      eventSubscriptions.set(channel, listener);
      ipcRenderer.on(channel, listener);
      ipcRenderer.send('grpc:subscribeSessionEvents', { sessionId });

      return () => {
        ipcRenderer.removeListener(channel, listener);
        eventSubscriptions.delete(channel);
        ipcRenderer.send('grpc:unsubscribeSessionEvents', { sessionId });
      };
    },

    testConnection: (url: string) =>
      ipcRenderer.invoke('grpc:testConnection', { url }),

    // 获取已注册的参与方列表
    getRegisteredParties: (roleFilter?: string, onlyOnline?: boolean) =>
      ipcRenderer.invoke('grpc:getRegisteredParties', { roleFilter, onlyOnline }),

    // 获取当前 partyId
    getPartyId: () => ipcRenderer.invoke('grpc:getPartyId'),

    // 检查连接状态
    isConnected: () => ipcRenderer.invoke('grpc:isConnected'),

    // 连接到 Message Router
    connect: (url: string) => ipcRenderer.invoke('grpc:connect', { url }),

    // 注册为参与方
    register: (partyId: string, role: string) =>
      ipcRenderer.invoke('grpc:register', { partyId, role }),

    // 签名相关 (旧版 - persistent 签名使用)
    validateSigningSession: (code: string) =>
      ipcRenderer.invoke('grpc:validateSigningSession', { code }),

    joinSigningSession: (params: {
      sessionId: string;
      shareId: string;
      password: string;
    }) => ipcRenderer.invoke('grpc:joinSigningSession', params),

    subscribeSigningProgress: (sessionId: string, callback: (event: unknown) => void) => {
      const channel = `signing:progress:${sessionId}`;
      const listener = (_event: unknown, data: unknown) => callback(data);
      eventSubscriptions.set(channel, listener);
      ipcRenderer.on(channel, listener);
      ipcRenderer.send('grpc:subscribeSigningProgress', { sessionId });

      return () => {
        ipcRenderer.removeListener(channel, listener);
        eventSubscriptions.delete(channel);
        ipcRenderer.send('grpc:unsubscribeSigningProgress', { sessionId });
      };
    },
  },

  // ===========================================================================
  // Co-Sign 相关 - 全新的多方协作签名 API
  // ===========================================================================
  cosign: {
    // 创建 Co-Sign 会话
    createSession: (params: {
      shareId: string;
      sharePassword: string;
      messageHash: string;
      initiatorName?: string;
    }) => ipcRenderer.invoke('cosign:createSession', params),

    // 验证邀请码
    validateInviteCode: (code: string) =>
      ipcRenderer.invoke('cosign:validateInviteCode', { code }),

    // 加入 Co-Sign 会话
    joinSession: (params: {
      sessionId: string;
      shareId: string;
      sharePassword: string;
      joinToken: string;
      walletName?: string;
      messageHash: string;
      threshold: { t: number; n: number };
    }) => ipcRenderer.invoke('cosign:joinSession', params),

    // 获取会话状态
    getSessionStatus: (sessionId: string) =>
      ipcRenderer.invoke('cosign:getSessionStatus', { sessionId }),

    // 订阅会话事件
    subscribeSessionEvents: (sessionId: string, callback: (event: unknown) => void) => {
      const channel = `cosign:events:${sessionId}`;
      const listener = (_event: unknown, data: unknown) => callback(data);
      eventSubscriptions.set(channel, listener);
      ipcRenderer.on(channel, listener);
      ipcRenderer.send('cosign:subscribeSessionEvents', { sessionId });

      return () => {
        ipcRenderer.removeListener(channel, listener);
        eventSubscriptions.delete(channel);
        ipcRenderer.send('cosign:unsubscribeSessionEvents', { sessionId });
      };
    },
  },

  // ===========================================================================
  // Account 服务相关 (HTTP API)
  // ===========================================================================
  account: {
    // 创建签名会话
    createSignSession: (params: {
      shareId: string;
      password: string;
      messageHash: string;
      initiatorName?: string;
    }) => ipcRenderer.invoke('account:createSignSession', params),

    // 获取签名会话状态 (通过邀请码)
    getSignSessionByInviteCode: (inviteCode: string) =>
      ipcRenderer.invoke('account:getSignSessionByInviteCode', { inviteCode }),

    // 健康检查
    healthCheck: () => ipcRenderer.invoke('account:healthCheck'),

    // 测试连接
    testConnection: () => ipcRenderer.invoke('account:testConnection'),

    // 更新服务 URL
    updateUrl: (url: string) =>
      ipcRenderer.invoke('account:updateUrl', { url }),

    // 获取当前服务 URL
    getUrl: () => ipcRenderer.invoke('account:getUrl'),
  },

  // ===========================================================================
  // 存储相关 (SQLite)
  // ===========================================================================
  storage: {
    // Share 操作
    saveShare: (share: {
      sessionId: string;
      walletName: string;
      partyId: string;
      partyIndex: number;
      threshold: { t: number; n: number };
      publicKey: string;
      rawShare: string;
      participants?: Array<{ partyId: string; name: string }>;
    }, password: string) =>
      ipcRenderer.invoke('storage:saveShare', { share, password }),

    listShares: () => ipcRenderer.invoke('storage:listShares'),

    getShare: (id: string, password: string) =>
      ipcRenderer.invoke('storage:getShare', { id, password }),

    exportShare: (id: string, password: string) =>
      ipcRenderer.invoke('storage:exportShare', { id, password }),

    importShare: (filePath: string, password: string) =>
      ipcRenderer.invoke('storage:importShare', { filePath, password }),

    deleteShare: (id: string) =>
      ipcRenderer.invoke('storage:deleteShare', { id }),

    // 设置操作
    getSettings: () => ipcRenderer.invoke('storage:getSettings'),

    saveSettings: (settings: {
      messageRouterUrl?: string;
      autoBackup?: boolean;
      backupPath?: string;
    }) => ipcRenderer.invoke('storage:saveSettings', { settings }),
  },

  // ===========================================================================
  // 地址派生相关
  // ===========================================================================
  address: {
    // 派生指定链的地址
    derive: (shareId: string, chain: string, password: string) =>
      ipcRenderer.invoke('address:derive', { shareId, chain, password }),

    // 派生所有支持链的地址
    deriveAll: (shareId: string, password: string) =>
      ipcRenderer.invoke('address:deriveAll', { shareId, password }),

    // 获取 share 的所有派生地址
    list: (shareId: string) =>
      ipcRenderer.invoke('address:list', { shareId }),

    // 获取支持的链列表
    getSupportedChains: () =>
      ipcRenderer.invoke('address:getSupportedChains'),
  },

  // ===========================================================================
  // 签名历史相关
  // ===========================================================================
  signing: {
    // 获取签名历史
    getHistory: (shareId: string) =>
      ipcRenderer.invoke('signing:getHistory', { shareId }),
  },

  // ===========================================================================
  // Kava 区块链相关
  // ===========================================================================
  kava: {
    // 查询 KAVA 余额
    getBalance: (address: string) =>
      ipcRenderer.invoke('kava:getBalance', { address }),

    // 查询所有余额
    getAllBalances: (address: string) =>
      ipcRenderer.invoke('kava:getAllBalances', { address }),

    // 查询账户信息
    getAccountInfo: (address: string) =>
      ipcRenderer.invoke('kava:getAccountInfo', { address }),

    // 构建转账交易 (待 TSS 签名)
    buildSendTx: (params: {
      fromAddress: string;
      toAddress: string;
      amount: string;
      publicKeyHex: string;
      memo?: string;
    }) => ipcRenderer.invoke('kava:buildSendTx', params),

    // 完成签名并广播交易
    completeTxAndBroadcast: (params: {
      unsignedTx: unknown;
      signatureHex: string;
    }) => ipcRenderer.invoke('kava:completeTxAndBroadcast', params),

    // 查询交易状态
    getTxStatus: (txHash: string) =>
      ipcRenderer.invoke('kava:getTxStatus', { txHash }),

    // 获取配置
    getConfig: () => ipcRenderer.invoke('kava:getConfig'),

    // 更新配置
    updateConfig: (config: {
      lcdEndpoint?: string;
      rpcEndpoint?: string;
      chainId?: string;
    }) => ipcRenderer.invoke('kava:updateConfig', { config }),

    // 健康检查
    healthCheck: () => ipcRenderer.invoke('kava:healthCheck'),

    // 切换网络 (mainnet/testnet)
    switchNetwork: (network: 'mainnet' | 'testnet') =>
      ipcRenderer.invoke('kava:switchNetwork', { network }),

    // 获取当前网络
    getNetwork: () => ipcRenderer.invoke('kava:getNetwork'),
  },

  // ===========================================================================
  // 对话框相关
  // ===========================================================================
  dialog: {
    selectDirectory: () => ipcRenderer.invoke('dialog:selectDirectory'),

    selectFile: (filters?: { name: string; extensions: string[] }[]) =>
      ipcRenderer.invoke('dialog:selectFile', { filters }),

    saveFile: (defaultPath?: string, filters?: { name: string; extensions: string[] }[]) =>
      ipcRenderer.invoke('dialog:saveFile', { defaultPath, filters }),
  },

  // ===========================================================================
  // 调试相关
  // ===========================================================================
  debug: {
    // 订阅主进程日志
    subscribeLogs: (callback: (event: unknown, data: { level: string; source: string; message: string }) => void) => {
      ipcRenderer.on('debug:log', callback);
      ipcRenderer.send('debug:subscribe');
    },

    // 取消订阅
    unsubscribeLogs: () => {
      ipcRenderer.removeAllListeners('debug:log');
      ipcRenderer.send('debug:unsubscribe');
    },

    // 发送日志到主进程
    log: (level: string, source: string, message: string) => {
      ipcRenderer.send('debug:log', { level, source, message });
    },
  },
});