import * as plugins from '../plugins.js';
import type { Cloudly } from '../classes.cloudly.js';
import * as servezoneInterfaces from '@serve.zone/interfaces';

export class CloudlySettingsManager {
  public cloudlyRef: Cloudly;
  public readyDeferred = plugins.smartpromise.defer();
  public settingsStore: plugins.smartdata.EasyStore<servezoneInterfaces.data.ICloudlySettings>;
  
  constructor(cloudlyRefArg: Cloudly) {
    this.cloudlyRef = cloudlyRefArg;
  }
  
  /**
   * Initialize the settings manager and create the EasyStore
   */
  public async init() {
    this.settingsStore = await this.cloudlyRef.mongodbConnector.smartdataDb
      .createEasyStore('cloudly-settings') as plugins.smartdata.EasyStore<servezoneInterfaces.data.ICloudlySettings>;
    
    // Setup API route handlers
    await this.setupRoutes();
    
    this.readyDeferred.resolve();
  }
  
  /**
   * Get all settings
   */
  public async getSettings(): Promise<servezoneInterfaces.data.ICloudlySettings> {
    await this.readyDeferred.promise;
    return await this.settingsStore.readAll();
  }
  
  /**
   * Get all settings with masked sensitive values (for API responses)
   */
  public async getSettingsMasked(): Promise<servezoneInterfaces.data.ICloudlySettingsMasked> {
    await this.readyDeferred.promise;
    const settings = await this.getSettings();
    const masked: servezoneInterfaces.data.ICloudlySettingsMasked = {};
    
    for (const [key, value] of Object.entries(settings)) {
      if (typeof value === 'string' && value.length > 4) {
        // Mask the token, showing only last 4 characters
        masked[key] = '****' + value.slice(-4);
      } else {
        masked[key] = value;
      }
    }
    
    return masked;
  }
  
  /**
   * Update multiple settings at once
   */
  public async updateSettings(updates: Partial<servezoneInterfaces.data.ICloudlySettings>): Promise<void> {
    await this.readyDeferred.promise;
    for (const [key, value] of Object.entries(updates)) {
      if (value !== undefined && value !== '') {
        await this.settingsStore.writeKey(key as keyof servezoneInterfaces.data.ICloudlySettings, value);
      } else if (value === '') {
        // Empty string means clear the setting
        await this.settingsStore.deleteKey(key as keyof servezoneInterfaces.data.ICloudlySettings);
      }
    }
  }
  
  /**
   * Get a specific setting value
   */
  public async getSetting<K extends keyof servezoneInterfaces.data.ICloudlySettings>(key: K): Promise<servezoneInterfaces.data.ICloudlySettings[K]> {
    await this.readyDeferred.promise;
    return await this.settingsStore.readKey(key);
  }
  
  /**
   * Set a specific setting value
   */
  public async setSetting<K extends keyof servezoneInterfaces.data.ICloudlySettings>(key: K, value: servezoneInterfaces.data.ICloudlySettings[K]): Promise<void> {
    await this.readyDeferred.promise;
    if (value !== undefined && value !== '') {
      await this.settingsStore.writeKey(key, value);
    }
  }
  
  /**
   * Clear a specific setting
   */
  public async clearSetting(key: keyof servezoneInterfaces.data.ICloudlySettings): Promise<void> {
    await this.readyDeferred.promise;
    await this.settingsStore.deleteKey(key);
  }
  
  /**
   * Clear all settings
   */
  public async clearAllSettings(): Promise<void> {
    await this.readyDeferred.promise;
    await this.settingsStore.wipe();
  }
  
  /**
   * Test connection for a specific provider
   */
  public async testProviderConnection(provider: string): Promise<{success: boolean; message: string}> {
    await this.readyDeferred.promise;
    try {
      switch (provider) {
        case 'hetzner':
          const hetznerToken = await this.getSetting('hetznerToken');
          if (!hetznerToken) {
            return { success: false, message: 'No Hetzner token configured' };
          }
          // TODO: Implement actual Hetzner API test
          return { success: true, message: 'Hetzner connection test successful' };
          
        case 'cloudflare':
          const cloudflareToken = await this.getSetting('cloudflareToken');
          if (!cloudflareToken) {
            return { success: false, message: 'No Cloudflare token configured' };
          }
          // TODO: Implement actual Cloudflare API test
          return { success: true, message: 'Cloudflare connection test successful' };
          
        case 'aws':
          const awsKey = await this.getSetting('awsAccessKey');
          const awsSecret = await this.getSetting('awsSecretKey');
          if (!awsKey || !awsSecret) {
            return { success: false, message: 'AWS credentials not configured' };
          }
          // TODO: Implement actual AWS API test
          return { success: true, message: 'AWS connection test successful' };
          
        case 'digitalocean':
          const doToken = await this.getSetting('digitalOceanToken');
          if (!doToken) {
            return { success: false, message: 'No DigitalOcean token configured' };
          }
          // TODO: Implement actual DigitalOcean API test
          return { success: true, message: 'DigitalOcean connection test successful' };
          
        case 'azure':
          const azureClientId = await this.getSetting('azureClientId');
          const azureClientSecret = await this.getSetting('azureClientSecret');
          const azureTenantId = await this.getSetting('azureTenantId');
          if (!azureClientId || !azureClientSecret || !azureTenantId) {
            return { success: false, message: 'Azure credentials not configured' };
          }
          // TODO: Implement actual Azure API test
          return { success: true, message: 'Azure connection test successful' };
          
        default:
          return { success: false, message: `Unknown provider: ${provider}` };
      }
    } catch (error) {
      return { success: false, message: `Connection test failed: ${error.message}` };
    }
  }

  
  /**
   * Setup API route handlers for settings management
   */
  private async setupRoutes() {
    // Get Settings Handler
    this.cloudlyRef.typedrouter.addTypedHandler<servezoneInterfaces.requests.settings.IRequest_GetSettings>(
      new plugins.typedrequest.TypedHandler<servezoneInterfaces.requests.settings.IRequest_GetSettings>(
        'getSettings',
        async (requestData) => {
          // TODO: Add authentication check for admin users
          const maskedSettings = await this.getSettingsMasked();
          return {
            settings: maskedSettings
          };
        }
      )
    );
    
    // Update Settings Handler
    this.cloudlyRef.typedrouter.addTypedHandler<servezoneInterfaces.requests.settings.IRequest_UpdateSettings>(
      new plugins.typedrequest.TypedHandler<servezoneInterfaces.requests.settings.IRequest_UpdateSettings>(
        'updateSettings',
        async (requestData) => {
          // TODO: Add authentication check for admin users
          try {
            await this.updateSettings(requestData.updates);
            return {
              success: true,
              message: 'Settings updated successfully'
            };
          } catch (error) {
            return {
              success: false,
              message: `Failed to update settings: ${error.message}`
            };
          }
        }
      )
    );
    
    // Clear Setting Handler
    this.cloudlyRef.typedrouter.addTypedHandler<servezoneInterfaces.requests.settings.IRequest_ClearSetting>(
      new plugins.typedrequest.TypedHandler<servezoneInterfaces.requests.settings.IRequest_ClearSetting>(
        'clearSetting',
        async (requestData) => {
          // TODO: Add authentication check for admin users
          try {
            await this.clearSetting(requestData.key);
            return {
              success: true,
              message: `Setting ${requestData.key} cleared successfully`
            };
          } catch (error) {
            return {
              success: false,
              message: `Failed to clear setting: ${error.message}`
            };
          }
        }
      )
    );
    
    // Test Provider Connection Handler
    this.cloudlyRef.typedrouter.addTypedHandler<servezoneInterfaces.requests.settings.IRequest_TestProviderConnection>(
      new plugins.typedrequest.TypedHandler<servezoneInterfaces.requests.settings.IRequest_TestProviderConnection>(
        'testProviderConnection',
        async (requestData) => {
          // TODO: Add authentication check for admin users
          const testResult = await this.testProviderConnection(requestData.provider);
          return {
            success: testResult.success,
            message: testResult.message,
            connectionValid: testResult.success
          };
        }
      )
    );
    
    // Get Single Setting Handler (for internal use)
    this.cloudlyRef.typedrouter.addTypedHandler<servezoneInterfaces.requests.settings.IRequest_GetSetting>(
      new plugins.typedrequest.TypedHandler<servezoneInterfaces.requests.settings.IRequest_GetSetting>(
        'getSetting',
        async (requestData) => {
          // TODO: Add authentication check for admin users
          const value = await this.getSetting(requestData.key);
          return {
            value
          };
        }
      )
    );
  }
}