<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Http\Resources\JobCollection;
use App\Http\Resources\JobResource;
use App\Models\Job;
use App\Services\JobSearchService;
use Illuminate\Http\Request;

class JobController extends Controller
{
    public function __construct(
        private JobSearchService $searchService
    ) {}

    /**
     * Display a listing of jobs with filtering and search
     */
    public function index(Request $request)
    {
        $filters = $request->only([
            'keywords',
            'search',
            'location',
            'category_id',
            'job_type',
            'experience_level',
            'remote',
            'salary_min',
            'salary_max',
            'posted_within',
            'source_id',
            'company',
            'sort',
        ]);

        $perPage = min($request->input('per_page', 15), 100);

        $jobs = $this->searchService->search($filters, $perPage);

        return new JobCollection($jobs);
    }

    /**
     * Display the specified job
     */
    public function show(int $id)
    {
        $job = Job::with(['source', 'category', 'jobLocation'])
            ->findOrFail($id);

        return new JobResource($job);
    }

    /**
     * Get autocomplete suggestions for job titles
     */
    public function titleSuggestions(Request $request)
    {
        $query = $request->input('q', '');

        if (strlen($query) < 2) {
            return response()->json([]);
        }

        $suggestions = $this->searchService->getTitleSuggestions($query, 10);

        return response()->json($suggestions);
    }

    /**
     * Get autocomplete suggestions for companies
     */
    public function companySuggestions(Request $request)
    {
        $query = $request->input('q', '');

        if (strlen($query) < 2) {
            return response()->json([]);
        }

        $suggestions = $this->searchService->getCompanySuggestions($query, 10);

        return response()->json($suggestions);
    }

    /**
     * Get autocomplete suggestions for locations
     */
    public function locationSuggestions(Request $request)
    {
        $query = $request->input('q', '');

        if (strlen($query) < 2) {
            return response()->json([]);
        }

        $suggestions = $this->searchService->getLocationSuggestions($query, 10);

        return response()->json($suggestions);
    }

    /**
     * Get filter options
     */
    public function filterOptions()
    {
        return response()->json($this->searchService->getFilterOptions());
    }
}