// API Configuration and Service
const API_CONFIG = {
  // Use the current origin in production
  // In development, use localhost:3001 explicitly
  BASE_URL:
    process.env.NODE_ENV === "development" ||
    window.location.hostname === "localhost"
      ? "http://localhost:3001"
      : window.location.origin,
};

// API Service for making HTTP requests
const apiService = {
  // Generic API call method with error handling
  async call(endpoint, options = {}) {
    try {
      const url = endpoint.startsWith("http")
        ? endpoint
        : `${API_CONFIG.BASE_URL}${endpoint}`;
      const response = await fetch(url, {
        ...options,
        headers: {
          "Content-Type": "application/json",
          ...options.headers,
        },
      });

      // If response is not ok, throw an error
      if (!response.ok) {
        const errorData = await response.json().catch(() => ({}));
        throw new Error(errorData.detail || `API error: ${response.status}`);
      }

      // Check if response is JSON or text
      const contentType = response.headers.get("content-type");
      if (contentType && contentType.includes("application/json")) {
        return await response.json();
      }
      return await response.text();
    } catch (error) {
      console.error("API call failed:", error);
      throw error;
    }
  },

  // GET request
  async get(endpoint, options = {}) {
    return await this.call(endpoint, {
      method: "GET",
      ...options,
    });
  },

  // POST request with JSON data
  async post(endpoint, data, options = {}) {
    return await this.call(endpoint, {
      method: "POST",
      body: JSON.stringify(data),
      ...options,
    });
  },

  // POST request with FormData
  async postFormData(endpoint, formData, options = {}) {
    try {
      const url = endpoint.startsWith("http")
        ? endpoint
        : `${API_CONFIG.BASE_URL}${endpoint}`;
      const response = await fetch(url, {
        method: "POST",
        body: formData,
        ...options,
        headers: {
          // Ne pas définir Content-Type pour FormData
          ...(options.headers || {}),
        },
      });

      // Si response is not ok, throw an error
      if (!response.ok) {
        const errorData = await response.json().catch(() => ({}));
        throw new Error(errorData.detail || `API error: ${response.status}`);
      }

      // Check if response is JSON or text
      const contentType = response.headers.get("content-type");
      if (contentType && contentType.includes("application/json")) {
        return await response.json();
      }
      return await response.text();
    } catch (error) {
      console.error("API FormData call failed:", error);
      throw error;
    }
  },

  // PUT request
  async put(endpoint, data, options = {}) {
    return await this.call(endpoint, {
      method: "PUT",
      body: JSON.stringify(data),
      ...options,
    });
  },

  // DELETE request
  async delete(endpoint, options = {}) {
    return await this.call(endpoint, {
      method: "DELETE",
      ...options,
    });
  },

  // Upload a file
  async uploadFile(file) {
    const formData = new FormData();
    formData.append("file", file);

    // Utilisation directe de fetch pour éviter les problèmes avec les en-têtes de FormData
    try {
      const response = await fetch(`${API_CONFIG.BASE_URL}/upload`, {
        method: "POST",
        body: formData,
        // Ne pas définir le Content-Type pour FormData
      });

      // Si response is not ok, throw an error
      if (!response.ok) {
        const errorData = await response.json().catch(() => ({}));
        throw new Error(errorData.detail || `API error: ${response.status}`);
      }

      return await response.json();
    } catch (error) {
      console.error("Upload file failed:", error);
      throw error;
    }
  },

  // Upload content from a URL
  async uploadUrl(url) {
    const formData = new FormData();
    formData.append("url", url);

    // Utilisation directe de fetch pour éviter les problèmes avec les en-têtes de FormData
    try {
      const response = await fetch(`${API_CONFIG.BASE_URL}/upload-url`, {
        method: "POST",
        body: formData,
        // Ne pas définir le Content-Type pour FormData
      });

      // Si response is not ok, throw an error
      if (!response.ok) {
        const errorData = await response.json().catch(() => ({}));
        throw new Error(errorData.detail || `API error: ${response.status}`);
      }

      return await response.json();
    } catch (error) {
      console.error("Upload URL failed:", error);
      throw error;
    }
  },

  // Get static document content
  async getDocumentContent(docId, extension) {
    return await this.get(`/${docId}.${extension}`);
  },

  // Download document
  downloadDocument(docId, extension, documentName) {
    try {
      const link = document.createElement("a");
      link.href = `/${docId}.${extension}`;
      link.setAttribute("download", `${documentName}.${extension}`);
      document.body.appendChild(link);
      link.click();
      document.body.removeChild(link);
      return true;
    } catch (error) {
      console.error("Download document failed:", error);
      throw error;
    }
  },
};

export { API_CONFIG, apiService };
export default API_CONFIG;