/**
 * configStore.ts - Configuration Management Store
 *
 * Extracted from gatewayStore.ts for Phase 11 Store Refactoring.
 * Manages settings, workspace, channels, skills, and models.
 */
import { create } from 'zustand';
import type { GatewayModelChoice } from '../lib/gateway-config';
import { setStoredGatewayUrl, setStoredGatewayToken } from '../lib/gateway-client';
import type { GatewayClient } from '../lib/gateway-client';

// === Types ===

export interface QuickConfig {
  agentName?: string;
  agentRole?: string;
  userName?: string;
  userRole?: string;
  agentNickname?: string;
  scenarios?: string[];
  workspaceDir?: string;
  gatewayUrl?: string;
  gatewayToken?: string;
  skillsExtraDirs?: string[];
  mcpServices?: Array<{ id: string; name: string; enabled: boolean }>;
  theme?: 'light' | 'dark';
  autoStart?: boolean;
  showToolCalls?: boolean;
  restrictFiles?: boolean;
  autoSaveContext?: boolean;
  fileWatching?: boolean;
  privacyOptIn?: boolean;
}

export interface WorkspaceInfo {
  path: string;
  resolvedPath: string;
  exists: boolean;
  fileCount: number;
  totalSize: number;
}

export interface ChannelInfo {
  id: string;
  type: string;
  label: string;
  status: 'active' | 'inactive' | 'error';
  accounts?: number;
  error?: string;
}

export interface ScheduledTask {
  id: string;
  name: string;
  schedule: string;
  status: 'active' | 'paused' | 'completed' | 'error';
  lastRun?: string;
  nextRun?: string;
  description?: string;
}

export interface SkillInfo {
  id: string;
  name: string;
  path: string;
  source: 'builtin' | 'extra';
  description?: string;
  triggers?: Array<{ type: string; pattern?: string }>;
  actions?: Array<{ type: string; params?: Record<string, unknown> }>;
  enabled?: boolean;
}

// === Client Interface ===

export interface ConfigStoreClient {
  getWorkspaceInfo(): Promise<WorkspaceInfo | null>;
  getQuickConfig(): Promise<{ quickConfig?: QuickConfig } | null>;
  saveQuickConfig(config: QuickConfig): Promise<{ quickConfig?: QuickConfig } | null>;
  listSkills(): Promise<{ skills?: SkillInfo[]; extraDirs?: string[] } | null>;
  getSkill(id: string): Promise<{ skill?: SkillInfo } | null>;
  createSkill(skill: {
    name: string;
    description?: string;
    triggers: Array<{ type: string; pattern?: string }>;
    actions: Array<{ type: string; params?: Record<string, unknown> }>;
    enabled?: boolean;
  }): Promise<{ skill?: SkillInfo } | null>;
  updateSkill(id: string, updates: {
    name?: string;
    description?: string;
    triggers?: Array<{ type: string; pattern?: string }>;
    actions?: Array<{ type: string; params?: Record<string, unknown> }>;
    enabled?: boolean;
  }): Promise<{ skill?: SkillInfo } | null>;
  deleteSkill(id: string): Promise<void>;
  listChannels(): Promise<{ channels?: ChannelInfo[] } | null>;
  getChannel(id: string): Promise<{ channel?: ChannelInfo } | null>;
  createChannel(channel: {
    type: string;
    name: string;
    config: Record<string, unknown>;
    enabled?: boolean;
  }): Promise<{ channel?: ChannelInfo } | null>;
  updateChannel(id: string, updates: {
    name?: string;
    config?: Record<string, unknown>;
    enabled?: boolean;
  }): Promise<{ channel?: ChannelInfo } | null>;
  deleteChannel(id: string): Promise<void>;
  listScheduledTasks(): Promise<{ tasks?: ScheduledTask[] } | null>;
  createScheduledTask(task: {
    name: string;
    schedule: string;
    scheduleType: 'cron' | 'interval' | 'once';
    target?: {
      type: 'agent' | 'hand' | 'workflow';
      id: string;
    };
    description?: string;
    enabled?: boolean;
  }): Promise<ScheduledTask>;
  listModels(): Promise<{ models: GatewayModelChoice[] }>;
  getFeishuStatus(): Promise<{ configured?: boolean; accounts?: number } | null>;
}

// === Store State Slice ===

export interface ConfigStateSlice {
  quickConfig: QuickConfig;
  workspaceInfo: WorkspaceInfo | null;
  channels: ChannelInfo[];
  scheduledTasks: ScheduledTask[];
  skillsCatalog: SkillInfo[];
  models: GatewayModelChoice[];
  modelsLoading: boolean;
  modelsError: string | null;
  error: string | null;
  client: ConfigStoreClient | null;
}

// === Store Actions Slice ===

export interface ConfigActionsSlice {
  setConfigStoreClient: (client: ConfigStoreClient) => void;
  loadQuickConfig: () => Promise<void>;
  saveQuickConfig: (updates: Partial<QuickConfig>) => Promise<void>;
  loadWorkspaceInfo: () => Promise<void>;
  loadChannels: () => Promise<void>;
  getChannel: (id: string) => Promise<ChannelInfo | undefined>;
  createChannel: (channel: {
    type: string;
    name: string;
    config: Record<string, unknown>;
    enabled?: boolean;
  }) => Promise<ChannelInfo | undefined>;
  updateChannel: (id: string, updates: {
    name?: string;
    config?: Record<string, unknown>;
    enabled?: boolean;
  }) => Promise<ChannelInfo | undefined>;
  deleteChannel: (id: string) => Promise<void>;
  loadScheduledTasks: () => Promise<void>;
  createScheduledTask: (task: {
    name: string;
    schedule: string;
    scheduleType: 'cron' | 'interval' | 'once';
    target?: {
      type: 'agent' | 'hand' | 'workflow';
      id: string;
    };
    description?: string;
    enabled?: boolean;
  }) => Promise<ScheduledTask | undefined>;
  loadSkillsCatalog: () => Promise<void>;
  getSkill: (id: string) => Promise<SkillInfo | undefined>;
  createSkill: (skill: {
    name: string;
    description?: string;
    triggers: Array<{ type: string; pattern?: string }>;
    actions: Array<{ type: string; params?: Record<string, unknown> }>;
    enabled?: boolean;
  }) => Promise<SkillInfo | undefined>;
  updateSkill: (id: string, updates: {
    name?: string;
    description?: string;
    triggers?: Array<{ type: string; pattern?: string }>;
    actions?: Array<{ type: string; params?: Record<string, unknown> }>;
    enabled?: boolean;
  }) => Promise<SkillInfo | undefined>;
  deleteSkill: (id: string) => Promise<void>;
  loadModels: () => Promise<void>;
  clearError: () => void;
}

// === Combined Store Type ===

export type ConfigStore = ConfigStateSlice & ConfigActionsSlice;

export const useConfigStore = create<ConfigStateSlice & ConfigActionsSlice>((set, get) => ({
  // Initial State
  quickConfig: {},
  workspaceInfo: null,
  channels: [],
  scheduledTasks: [],
  skillsCatalog: [],
  models: [],
  modelsLoading: false,
  modelsError: null,
  error: null,
  client: null,

  // Client Injection
  setConfigStoreClient: (client: ConfigStoreClient) => {
    set({ client });
  },

  // === Quick Config Actions ===

  loadQuickConfig: async () => {
    const client = get().client;
    if (!client) return;

    try {
      const result = await client.getQuickConfig();
      set({ quickConfig: result?.quickConfig || {} });
    } catch {
      // Ignore if quick config not available
    }
  },

  saveQuickConfig: async (updates: Partial<QuickConfig>) => {
    const client = get().client;
    if (!client) return;

    try {
      const nextConfig = { ...get().quickConfig, ...updates };
      // Persist gateway URL/token to localStorage for reconnection
      if (nextConfig.gatewayUrl) {
        setStoredGatewayUrl(nextConfig.gatewayUrl);
      }
      if (Object.prototype.hasOwnProperty.call(updates, 'gatewayToken')) {
        setStoredGatewayToken(nextConfig.gatewayToken || '');
      }
      const result = await client.saveQuickConfig(nextConfig);
      set({ quickConfig: result?.quickConfig || nextConfig });
    } catch (err: unknown) {
      set({ error: err instanceof Error ? err.message : String(err) });
    }
  },

  // === Workspace Actions ===

  loadWorkspaceInfo: async () => {
    const client = get().client;
    if (!client) return;

    try {
      const info = await client.getWorkspaceInfo();
      set({ workspaceInfo: info });
    } catch {
      // Ignore if workspace info not available
    }
  },

  // === Channel Actions ===

  loadChannels: async () => {
    const client = get().client;
    if (!client) return;

    const channels: ChannelInfo[] = [];
    try {
      // Try listing channels from Gateway
      const result = await client.listChannels();
      if (result?.channels) {
        set({ channels: result.channels });
        return;
      }
    } catch {
      // channels.list may not be available, fallback to probing
    }

    // Fallback: probe known channels individually
    try {
      const feishu = await client.getFeishuStatus();
      channels.push({
        id: 'feishu',
        type: 'feishu',
        label: '飞书 (Feishu)',
        status: feishu?.configured ? 'active' : 'inactive',
        accounts: feishu?.accounts || 0,
      });
    } catch {
      channels.push({ id: 'feishu', type: 'feishu', label: '飞书 (Feishu)', status: 'inactive' });
    }

    set({ channels });
  },

  getChannel: async (id: string) => {
    const client = get().client;
    if (!client) return undefined;

    try {
      const result = await client.getChannel(id);
      if (result?.channel) {
        // Update the channel in the local state if it exists
        const currentChannels = get().channels;
        const existingIndex = currentChannels.findIndex(c => c.id === id);
        if (existingIndex >= 0) {
          const updatedChannels = [...currentChannels];
          updatedChannels[existingIndex] = result.channel;
          set({ channels: updatedChannels });
        }
        return result.channel as ChannelInfo;
      }
      return undefined;
    } catch (err: unknown) {
      set({ error: err instanceof Error ? err.message : String(err) });
      return undefined;
    }
  },

  createChannel: async (channel) => {
    const client = get().client;
    if (!client) return undefined;

    try {
      const result = await client.createChannel(channel);
      if (result?.channel) {
        // Add the new channel to local state
        const currentChannels = get().channels;
        set({ channels: [...currentChannels, result.channel as ChannelInfo] });
        return result.channel as ChannelInfo;
      }
      return undefined;
    } catch (err: unknown) {
      set({ error: err instanceof Error ? err.message : String(err) });
      return undefined;
    }
  },

  updateChannel: async (id, updates) => {
    const client = get().client;
    if (!client) return undefined;

    try {
      const result = await client.updateChannel(id, updates);
      if (result?.channel) {
        // Update the channel in local state
        const currentChannels = get().channels;
        const updatedChannels = currentChannels.map(c =>
          c.id === id ? (result.channel as ChannelInfo) : c
        );
        set({ channels: updatedChannels });
        return result.channel as ChannelInfo;
      }
      return undefined;
    } catch (err: unknown) {
      set({ error: err instanceof Error ? err.message : String(err) });
      return undefined;
    }
  },

  deleteChannel: async (id) => {
    const client = get().client;
    if (!client) return;

    try {
      await client.deleteChannel(id);
      // Remove the channel from local state
      const currentChannels = get().channels;
      set({ channels: currentChannels.filter(c => c.id !== id) });
    } catch (err: unknown) {
      set({ error: err instanceof Error ? err.message : String(err) });
    }
  },

  // === Scheduled Task Actions ===

  loadScheduledTasks: async () => {
    const client = get().client;
    if (!client) return;

    try {
      const result = await client.listScheduledTasks();
      set({ scheduledTasks: result?.tasks || [] });
    } catch {
      // Ignore if heartbeat.tasks not available
    }
  },

  createScheduledTask: async (task) => {
    const client = get().client;
    if (!client) return undefined;

    try {
      const result = await client.createScheduledTask(task);
      const newTask: ScheduledTask = {
        id: result.id,
        name: result.name,
        schedule: result.schedule,
        status: result.status as 'active' | 'paused' | 'completed' | 'error',
        lastRun: result.lastRun,
        nextRun: result.nextRun,
        description: result.description,
      };
      set((state) => ({
        scheduledTasks: [...state.scheduledTasks, newTask],
      }));
      return newTask;
    } catch (err: unknown) {
      const errorMessage = err instanceof Error ? err.message : 'Failed to create scheduled task';
      set({ error: errorMessage });
      return undefined;
    }
  },

  // === Skill Actions ===

  loadSkillsCatalog: async () => {
    const client = get().client;
    if (!client) return;

    try {
      const result = await client.listSkills();
      set({ skillsCatalog: result?.skills || [] });
      if (result?.extraDirs) {
        set((state) => ({
          quickConfig: {
            ...state.quickConfig,
            skillsExtraDirs: result.extraDirs,
          },
        }));
      }
    } catch {
      // Ignore if skills list not available
    }
  },

  getSkill: async (id: string) => {
    const client = get().client;
    if (!client) return undefined;

    try {
      const result = await client.getSkill(id);
      return result?.skill as SkillInfo | undefined;
    } catch {
      return undefined;
    }
  },

  createSkill: async (skill) => {
    const client = get().client;
    if (!client) return undefined;

    try {
      const result = await client.createSkill(skill);
      const newSkill = result?.skill as SkillInfo | undefined;
      if (newSkill) {
        set((state) => ({
          skillsCatalog: [...state.skillsCatalog, newSkill],
        }));
      }
      return newSkill;
    } catch {
      return undefined;
    }
  },

  updateSkill: async (id, updates) => {
    const client = get().client;
    if (!client) return undefined;

    try {
      const result = await client.updateSkill(id, updates);
      const updatedSkill = result?.skill as SkillInfo | undefined;
      if (updatedSkill) {
        set((state) => ({
          skillsCatalog: state.skillsCatalog.map((s) =>
            s.id === id ? updatedSkill : s
          ),
        }));
      }
      return updatedSkill;
    } catch {
      return undefined;
    }
  },

  deleteSkill: async (id) => {
    const client = get().client;
    if (!client) return;

    try {
      await client.deleteSkill(id);
      set((state) => ({
        skillsCatalog: state.skillsCatalog.filter((s) => s.id !== id),
      }));
    } catch {
      // Ignore deletion errors
    }
  },

  // === Model Actions ===

  loadModels: async () => {
    const client = get().client;
    if (!client) return;

    try {
      set({ modelsLoading: true, modelsError: null });
      const result = await client.listModels();
      const models: GatewayModelChoice[] = result?.models || [];
      set({ models, modelsLoading: false });
    } catch (err: unknown) {
      const message = err instanceof Error ? err.message : 'Failed to load models';
      set({ modelsError: message, modelsLoading: false });
    }
  },

  // === Utility ===

  clearError: () => {
    set({ error: null });
  },
}));

// Re-export types for convenience
export type {
  QuickConfig as QuickConfigType,
  WorkspaceInfo as WorkspaceInfoType,
  ChannelInfo as ChannelInfoType,
  ScheduledTask as ScheduledTaskType,
  SkillInfo as SkillInfoType,
};

// === Client Injection ===

/**
 * Helper to create a ConfigStoreClient adapter from a GatewayClient.
 */
function createConfigClientFromGateway(client: GatewayClient): ConfigStoreClient {
  return {
    getWorkspaceInfo: () => client.getWorkspaceInfo(),
    getQuickConfig: () => client.getQuickConfig(),
    saveQuickConfig: (config) => client.saveQuickConfig(config),
    listSkills: () => client.listSkills(),
    getSkill: (id) => client.getSkill(id),
    createSkill: (skill) => client.createSkill(skill),
    updateSkill: (id, updates) => client.updateSkill(id, updates),
    deleteSkill: (id) => client.deleteSkill(id),
    listChannels: () => client.listChannels(),
    getChannel: (id) => client.getChannel(id),
    createChannel: (channel) => client.createChannel(channel),
    updateChannel: (id, updates) => client.updateChannel(id, updates),
    deleteChannel: (id) => client.deleteChannel(id),
    listScheduledTasks: () => client.listScheduledTasks(),
    createScheduledTask: async (task) => {
      const result = await client.createScheduledTask(task);
      return {
        id: result.id,
        name: result.name,
        schedule: result.schedule,
        status: result.status as 'active' | 'paused' | 'completed' | 'error',
      };
    },
    listModels: () => client.listModels(),
    getFeishuStatus: () => client.getFeishuStatus(),
  };
}

/**
 * Sets the client for the config store.
 * Called by the coordinator during initialization.
 */
export function setConfigStoreClient(client: unknown): void {
  const configClient = createConfigClientFromGateway(client as GatewayClient);
  useConfigStore.getState().setConfigStoreClient(configClient);
}