import axios, { AxiosError } from "axios";
import type { Job, SearchFilters, GeneratedCV } from "@/types";

const API_BASE = import.meta.env.VITE_API_URL || "";

const api = axios.create({
  baseURL: API_BASE,
  headers: {
    "Content-Type": "application/json",
  },
});

// Request interceptor to add auth headers if needed
api.interceptors.request.use((config) => {
  return config;
});

// Response interceptor for error handling
api.interceptors.response.use(
  (response) => response,
  (error: AxiosError) => {
    console.error("API Error:", error.response?.data || error.message);
    return Promise.reject(error);
  }
);

export const jobsAPI = {
  // Load runtime app config/settings
  async getConfig(): Promise<{
    tailoring_mode: "local" | "api";
    llm_provider: "ollama" | "groq" | "grok" | "openai";
    enable_professional_summary: boolean;
    include_cover_letters: boolean;
  }> {
    const response = await api.get("/api/config");
    return response.data;
  },

  // Save user profile for the Auto-Apply Extension
  async saveUserProfile(profileData: {
    first_name: string;
    last_name: string;
    email: string;
    phone: string;
    linkedin: string;
    github: string;
  }): Promise<{ success: boolean; message?: string }> {
    const response = await api.post("/api/user-profile", profileData);
    return response.data;
  },

  // Run deep semantic analysis for a specific job
  evaluateJobFit: async (
    jobId: string
  ): Promise<{
    success: boolean;
    match_score?: number;
    matched_skills?: string[];
    missing_skills?: string[];
    error?: string;
  }> => {
    const response = await api.post("/api/evaluate-fit", { job_id: jobId });
    return response.data;
  },

  // Save runtime app settings
  async saveSettings(payload: {
    tailoring_mode: "local" | "api";
    llm_provider: "ollama" | "groq" | "grok" | "openai";
    enable_professional_summary: boolean;
    include_cover_letters: boolean;
  }): Promise<{ success: boolean; settings: unknown }> {
    const response = await api.post("/api/settings", payload);
    return response.data;
  },

  // Search for jobs
  async searchJobs(
    filters: SearchFilters
  ): Promise<{ jobs: Job[]; excel_file: string }> {
    const response = await api.post("/api/search", {
      keyword: filters.keyword,
      location: filters.location,
      max_jobs: filters.maxJobs,
      max_days_old: filters.maxDaysOld || 30,
    });
    return {
      jobs: response.data.jobs || [],
      excel_file: response.data.excel_file || "",
    };
  },

  // Fast Search using Apify
  async searchJobsApify(
    filters: SearchFilters
  ): Promise<{ jobs: Job[]; json_file: string }> {
    const response = await api.post("/api/apify-search", {
      keyword: filters.keyword,
      location: filters.location,
      max_jobs: filters.maxJobs,
      max_days_old: filters.maxDaysOld || 30,
    });
    return {
      jobs: response.data.jobs || [],
      json_file: response.data.json_file || "",
    };
  },

  // Upload CV template
  async uploadCV(file: File): Promise<{ success: boolean; message: string }> {
    const formData = new FormData();
    formData.append("file", file);
    const response = await api.post("/api/upload-cv", formData, {
      headers: {
        "Content-Type": "multipart/form-data",
      },
    });
    return response.data;
  },

  // Get jobs list
  async getJobsList(): Promise<Job[]> {
    const response = await api.get("/api/jobs");
    return response.data.jobs || [];
  },

  // Generate CV for single job
  async generateCV(jobId: string): Promise<{
    success: boolean;
    filename: string;
    url: string;
    job?: Job; // <--- Temporary
    cover_letter_filename?: string;
    cover_letter_url?: string;
  }> {
    const response = await api.post(`/api/generate-cv/${jobId}`);
    const coverLetterFilename =
      response.data.cover_letter_filename || undefined;
    return {
      success: response.data.success,
      filename: response.data.filename,
      url: `/api/download/${encodeURIComponent(response.data.filename)}`,
      job: response.data.job, // <--- Temporary
      cover_letter_filename: coverLetterFilename,
      cover_letter_url: coverLetterFilename
        ? `/api/download/${encodeURIComponent(coverLetterFilename)}`
        : undefined,
    };
  },

  // Generate CVs for all selected jobs
  async generateAllCVs(jobIds?: string[]): Promise<{
    success: boolean;
    successful: GeneratedCV[];
    failed: Array<{ jobId: string; error: string }>;
    zip_filename: string;
  }> {
    // Updated the IDs of each job to represent actual IDs and avoid duplicated scrapes and Stop converting UUID strings into Numbers!
    const jobIndices = jobIds || [];
    const response = await api.post("/api/generate-all-cvs", {
      job_indices: jobIndices,
    });

    const successful: GeneratedCV[] = (response.data.successful || []).map(
      (cv: any) => ({
        jobId: String(cv.job_index),
        jobTitle: cv.job_title || "",
        company: cv.company || "",
        filename: cv.filename,
        url: `/api/download/${encodeURIComponent(cv.filename)}`,
        coverLetterFilename: cv.cover_letter_filename || undefined,
        coverLetterUrl: cv.cover_letter_filename
          ? `/api/download/${encodeURIComponent(cv.cover_letter_filename)}`
          : undefined,
        generatedAt: new Date().toISOString(),
        status: "success",
      })
    );

    const failed = (response.data.failed || []).map((item: any) => ({
      jobId: String(item.job_index),
      error: item.error || "Unknown error",
    }));

    return {
      success: response.data.success,
      successful,
      failed,
      zip_filename: response.data.zip_filename,
    };
  },

  // Download file
  async downloadFile(filename: string): Promise<Blob> {
    const encodedFilename = encodeURIComponent(filename);
    const response = await api.get(`/api/download/${encodedFilename}`, {
      responseType: "blob",
    });
    return response.data;
  },

  // Get batch progress (for real-time updates)
  async getBatchProgress(): Promise<{
    completed: number;
    total: number;
    current_job?: string;
    failed: number;
  }> {
    return {
      completed: 0,
      total: 0,
      failed: 0,
      current_job: undefined,
    };
  },

  // Health check
  async healthCheck(): Promise<{ status: string }> {
    const response = await api.get("/api/health");
    return response.data;
  },
};

export default api;