<?php

namespace App\Http\Controllers\Employer;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Inertia\Inertia;
use App\Models\User;
use App\Models\Worker;
use App\Models\WorkerCategory;
use App\Models\Shortlist;
use App\Models\JobOffer;

class WorkerController extends Controller
{
    private function resolveCurrentUser()
    {
        $sess = session('user');
        $sessId = is_array($sess) ? ($sess['id'] ?? null) : ($sess->id ?? null);
        
        if (!$sessId) {
            $user = User::where('role', 'employer')->first();
            if ($user) {
                session(['user' => (object)[
                    'id' => $user->id,
                    'name' => $user->name,
                    'email' => $user->email,
                    'role' => 'employer',
                    'subscription_status' => $user->subscription_status ?? 'active',
                ]]);
                return $user;
            }
        } else {
            return User::find($sessId);
        }
        
        return null;
    }

    public function index(Request $request)
    {
        $user = $this->resolveCurrentUser();
        $employerId = $user ? $user->id : 2;

        // Fetch all non-deleted workers to show their status changes (active vs Hired)
        $dbWorkers = Worker::with(['category', 'skills'])->get();

        $workers = $dbWorkers->map(function ($w) {
            return [
                'id' => $w->id,
                'name' => $w->name,
                'nationality' => $w->nationality,
                'category' => $w->category ? $w->category->name : 'General Helper',
                'skills' => $w->skills->pluck('name')->toArray(),
                'availability' => $w->availability,
                'experience' => $w->experience,
                'salary' => (int)$w->salary,
                'religion' => $w->religion,
                'languages' => ['English', 'Arabic'], 
                'age' => $w->age,
                'verified' => (bool)$w->verified,
                'status' => $w->status, // Map worker status dynamically (e.g. active, Hired)
                'bio' => $w->bio,
            ];
        })->toArray();

        // Get saved shortlist for current employer
        $shortlistedIds = Shortlist::where('employer_id', $employerId)->pluck('worker_id')->toArray();

        // Dynamically build filter metadata from DB values
        $dbCategories = WorkerCategory::pluck('name')->toArray();
        $dbNationalities = Worker::distinct()->pluck('nationality')->toArray();

        $filtersMetadata = [
            'categories' => array_merge(['All Categories'], $dbCategories),
            'nationalities' => array_merge(['All Nationalities'], $dbNationalities),
            'availabilities' => ['All Availabilities', 'Immediate', '1 Week', '2 Weeks', '1 Month'],
            'experienceLevels' => ['All Experience', '1-2 Years', '3-5 Years', '5+ Years'],
            'religions' => ['All Religions', 'Christian', 'Muslim', 'Hindu', 'Buddhist'],
        ];

        return Inertia::render('Employer/Workers/Index', [
            'initialWorkers' => $workers,
            'initialShortlistedIds' => $shortlistedIds,
            'filtersMetadata' => $filtersMetadata,
        ]);
    }

    public function show($id)
    {
        $w = Worker::with(['category', 'skills', 'documents'])->findOrFail($id);
        
        $worker = [
            'id' => $w->id,
            'name' => $w->name,
            'nationality' => $w->nationality,
            'category' => $w->category ? $w->category->name : 'General Helper',
            'skills' => $w->skills->pluck('name')->toArray(),
            'availability' => $w->availability,
            'experience' => $w->experience,
            'experience_years' => 5, 
            'salary' => (int)$w->salary,
            'religion' => $w->religion,
            'languages' => ['English', 'Arabic'],
            'age' => $w->age,
            'verified' => (bool)$w->verified,
            'status' => $w->status,
            'bio' => $w->bio,
            'passport_status' => 'OCR Verified',
            'visa_status' => 'Transferable',
        ];

        return Inertia::render('Employer/Workers/Show', [
            'worker' => $worker,
        ]);
    }

    /**
     * Submit a secure hiring offer from the Employer Web Portal.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\RedirectResponse
     */
    public function sendOffer(Request $request, $id)
    {
        $request->validate([
            'work_date' => 'required|date',
            'location' => 'required|string|max:255',
            'salary' => 'required|numeric|min:0',
            'notes' => 'nullable|string|max:1000',
        ]);

        $user = $this->resolveCurrentUser();
        $employerId = $user ? $user->id : 2;

        // Verify worker exists
        $worker = Worker::findOrFail($id);

        // Create job offer record
        JobOffer::create([
            'employer_id' => $employerId,
            'worker_id' => $worker->id,
            'work_date' => $request->work_date,
            'location' => $request->location,
            'salary' => $request->salary,
            'notes' => $request->notes,
            'status' => 'pending',
        ]);

        return redirect()->route('employer.hiring.success', ['id' => $id])
            ->with('success', 'Hiring offer has been successfully dispatched to the worker!');
    }
}