import { Config } from "../../config/Config";
import { HTTPClient } from "../../http/HTTPClient";
import { BaseImageProvider } from "./BaseImageProvider";
import { BingImageProvider } from "./BingImageProvider";
import { DuckDuckGoImageProvider } from "./DuckDuckGoImageProvider";
import { PexelsImageProvider } from "./PexelsImageProvider";
import { SerpApiImageProvider } from "./SerpApiImageProvider";

export interface CreateImageProviderOptions {
  httpClient?: HTTPClient;
}

/**
 * Dedicated factory class for instantiating image search provider subclasses.
 * Separated from ImageProviderRegistry to break circular dependency with Config.
 */
export class ImageProviderFactory {
  /**
   * Instantiate and return configured active BaseImageProvider instance by name string.
   *
   * @param providerName Optional image search provider name string (defaults to Config.getImageProviderName()).
   * @param options Optional httpClient override.
   * @returns Configured BaseImageProvider subclass instance.
   */
  public static createImageProvider(
    providerName?: string,
    options: CreateImageProviderOptions = {}
  ): BaseImageProvider {
    const targetName = (providerName || Config.getImageProviderName()).toLowerCase().trim();
    const httpClient =
      options.httpClient ?? new HTTPClient({ timeoutSeconds: Config.getHttpTimeout() });

    if (targetName === "bing") {
      return new BingImageProvider({ httpClient });
    }

    if (targetName === "serpapi") {
      const keys = Config.getProviderKeys("serpapi");
      return new SerpApiImageProvider({
        keys,
        httpClient,
      });
    }

    if (targetName === "pexels") {
      const keys = Config.getProviderKeys("pexels");
      return new PexelsImageProvider({
        keys,
        httpClient,
      });
    }

    // Default to DuckDuckGo (requires no API keys)
    return new DuckDuckGoImageProvider({ httpClient });
  }
}

import { Config } from "../../config/Config";
import { HTTPClient } from "../../http/HTTPClient";
import { BaseImageProvider } from "./BaseImageProvider";
import { BingImageProvider } from "./BingImageProvider";
import { DuckDuckGoImageProvider } from "./DuckDuckGoImageProvider";
import { PexelsImageProvider } from "./PexelsImageProvider";
import { SerpApiImageProvider } from "./SerpApiImageProvider";

export interface CreateImageProviderOptions {
  httpClient?: HTTPClient;
}

/**
 * Dedicated factory class for instantiating image search provider subclasses.
 * Separated from ImageProviderRegistry to break circular dependency with Config.
 */
export class ImageProviderFactory {
  /**
   * Instantiate and return configured active BaseImageProvider instance by name string.
   *
   * @param providerName Optional image search provider name string (defaults to Config.getImageProviderName()).
   * @param options Optional httpClient override.
   * @returns Configured BaseImageProvider subclass instance.
   */
  public static createImageProvider(
    providerName?: string,
    options: CreateImageProviderOptions = {}
  ): BaseImageProvider {
    const targetName = (providerName || Config.getImageProviderName()).toLowerCase().trim();
    const httpClient =
      options.httpClient ?? new HTTPClient({ timeoutSeconds: Config.getHttpTimeout() });

    if (targetName === "bing") {
      return new BingImageProvider({ httpClient });
    }

    if (targetName === "serpapi") {
      const keys = Config.getProviderKeys("serpapi");
      return new SerpApiImageProvider({
        keys,
        httpClient,
      });
    }

    if (targetName === "pexels") {
      const keys = Config.getProviderKeys("pexels");
      return new PexelsImageProvider({
        keys,
        httpClient,
      });
    }

    // Default to DuckDuckGo (requires no API keys)
    return new DuckDuckGoImageProvider({ httpClient });
  }
}