<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Hash;
use Illuminate\Validation\ValidationException;

class AuthApiController extends Controller
{
    public function register(Request $request)
    {
        $data = $request->validate([
            'name'     => 'required|string|max:100',
            'username' => 'required|string|max:50|unique:users|alpha_dash',
            'email'    => 'required|email|unique:users',
            'password' => 'required|string|min:6|confirmed',
        ]);

        $user = User::create([
            'name'     => $data['name'],
            'username' => $data['username'],
            'email'    => $data['email'],
            'password' => $data['password'],
            'role'     => 'user',
            'membership' => 'free',
        ]);

        $token = $user->createToken('animexe-app')->plainTextToken;

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

    public function login(Request $request)
    {
        $data = $request->validate([
            'email'    => 'required|email',
            'password' => 'required',
        ]);

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

        if (!$user || !Hash::check($data['password'], $user->password)) {
            throw ValidationException::withMessages([
                'email' => ['E-posta veya şifre hatalı.'],
            ]);
        }

        if ($user->is_banned) {
            return response()->json([
                'message' => 'Hesabınız yasaklandı. Sebep: ' . ($user->ban_reason ?? 'Belirtilmedi'),
            ], 403);
        }

        $token = $user->createToken('animexe-app')->plainTextToken;

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

    public function logout(Request $request)
    {
        $request->user()->currentAccessToken()->delete();
        return response()->json(['message' => 'Çıkış yapıldı.']);
    }

    public function me(Request $request)
    {
        return response()->json(['user' => $this->userResource($request->user())]);
    }

    public function saveFcmToken(Request $request)
    {
        $data = $request->validate(['token' => 'required|string|max:500']);
        $request->user()->update(['fcm_token' => $data['token']]);
        return response()->json(['ok' => true]);
    }

    public function updateProfile(Request $request)
    {
        $user = $request->user();

        $request->validate([
            'name'      => 'sometimes|string|max:100',
            'username'  => 'sometimes|string|max:50|unique:users,username,' . $user->id . '|alpha_dash',
            'password'  => 'sometimes|string|min:6|confirmed',
            'bio'       => 'sometimes|nullable|string|max:300',
            'website'   => 'sometimes|nullable|string|max:100',
            'twitter'   => 'sometimes|nullable|string|max:50',
            'instagram' => 'sometimes|nullable|string|max:50',
            'discord'   => 'sometimes|nullable|string|max:50',
            'avatar'    => 'sometimes|nullable|image|max:3072',
            'banner'    => 'sometimes|nullable|image|max:6144',
        ]);

        $data = $request->only(['name', 'username', 'bio', 'website', 'twitter', 'instagram', 'discord']);
        $data = array_filter($data, fn($v) => $v !== null);

        if ($request->filled('password')) {
            $data['password'] = bcrypt($request->input('password'));
        }

        if ($request->hasFile('avatar')) {
            $data['avatar'] = $request->file('avatar')->store('avatars', 'public');
        }

        if ($request->hasFile('banner')) {
            $data['banner_image'] = $request->file('banner')->store('banners', 'public');
        }

        if (!empty($data)) {
            $user->update($data);
        }

        return response()->json(['user' => $this->userResource($user->fresh())]);
    }

    private function userResource(User $user): array
    {
        return [
            'id'                 => $user->id,
            'name'               => $user->name,
            'username'           => $user->username,
            'email'              => $user->email,
            'bio'                => $user->bio,
            'website'            => $user->website,
            'twitter'            => $user->twitter,
            'instagram'          => $user->instagram,
            'discord'            => $user->discord,
            'avatar'             => $user->avatar
                ? (\App\Support\MediaUrl::fromStoragePath($user->avatar))
                : null,
            'banner_image'       => $user->banner_image
                ? (\App\Support\MediaUrl::fromStoragePath($user->banner_image))
                : null,
            'role'               => $user->role,
            'membership'         => $user->membership,
            'is_premium'         => $user->isPremium(),
            'premium_expires_at' => $user->premium_expires_at?->toISOString(),
            'created_at'         => $user->created_at?->toISOString(),
        ];
    }
}