<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Http\Resources\UserResource;
use App\Models\User;
use Illuminate\Auth\Events\Registered;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Hash;
use Illuminate\Validation\Rules;
use Illuminate\Validation\ValidationException;

class AuthController extends Controller
{
    public function register(Request $request): JsonResponse
    {
        $data = $request->validate([
            'name' => ['required', 'string', 'max:255'],
            'email' => ['required', 'string', 'lowercase', 'email', 'max:255', 'unique:'.User::class],
            'password' => ['required', 'confirmed', Rules\Password::defaults()],
            'is_trainer' => ['nullable', 'boolean'],
            'age' => ['nullable', 'integer', 'min:5', 'max:120'],
            'weight_kg' => ['nullable', 'numeric', 'min:20', 'max:400'],
            'height_cm' => ['nullable', 'numeric', 'min:80', 'max:250'],
            'fitness_level' => ['nullable', 'in:beginner,intermediate,advanced'],
            'goal' => ['nullable', 'string', 'max:50'],
            'health_notes' => ['nullable', 'string', 'max:65535'],
            'available_equipment' => ['nullable', 'string', 'max:65535'],
            'days_per_week' => ['nullable', 'integer', 'min:1', 'max:7'],
            'minutes_per_session' => ['nullable', 'integer', 'min:5', 'max:600'],
            'device_name' => ['required', 'string', 'max:255'],
        ]);

        $user = User::create([
            'name' => $data['name'],
            'email' => $data['email'],
            'password' => Hash::make($data['password']),
            'is_trainer' => (bool) ($data['is_trainer'] ?? false),
            'age' => $data['age'] ?? null,
            'weight_kg' => $data['weight_kg'] ?? null,
            'height_cm' => $data['height_cm'] ?? null,
            'fitness_level' => $data['fitness_level'] ?? null,
            'goal' => $data['goal'] ?? null,
            'health_notes' => $data['health_notes'] ?? null,
            'available_equipment' => $data['available_equipment'] ?? null,
            'days_per_week' => $data['days_per_week'] ?? null,
            'minutes_per_session' => $data['minutes_per_session'] ?? null,
        ]);

        event(new Registered($user));

        $token = $user->createToken($data['device_name'])->plainTextToken;

        return response()->json([
            'user' => new UserResource($user),
            'token' => $token,
        ], 201);
    }

    public function login(Request $request): JsonResponse
    {
        $data = $request->validate([
            'email' => ['required', 'email'],
            'password' => ['required', 'string'],
            'device_name' => ['required', 'string', 'max:255'],
        ]);

        $user = User::where('email', $data['email'])->first();

        if (!$user || !Hash::check($data['password'], $user->password)) {
            throw ValidationException::withMessages([
                'email' => ['The provided credentials are incorrect.'],
            ]);
        }

        $token = $user->createToken($data['device_name'])->plainTextToken;

        return response()->json([
            'user' => new UserResource($user),
            'token' => $token,
        ]);
    }

    public function logout(Request $request): JsonResponse
    {
        $request->user()->currentAccessToken()->delete();

        return response()->json(['message' => 'Logged out']);
    }

    public function me(Request $request): JsonResponse
    {
        return response()->json(['user' => new UserResource($request->user())]);
    }
}