<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\View\View;
use Illuminate\Http\RedirectResponse;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Storage;
use Illuminate\Validation\Rules\Password;

class ProfileController extends Controller
{
    /**
     * Display the user's profile.
     */
    public function show(): View
    {
        $user = Auth::user();
        return view('profile.show', compact('user'));
    }

    /**
     * Show the form for editing the user's profile.
     */
    public function edit(): View
    {
        $user = Auth::user();
        return view('profile.edit', compact('user'));
    }

    /**
     * Update the user's profile information.
     */
    public function update(Request $request): RedirectResponse
    {
        $user = Auth::user();

        $request->validate([
            'name' => 'required|string|max:255',
            'email' => 'required|email|max:255|unique:users,email,' . $user->id,
            'phone' => 'nullable|string|max:20',
            'bio' => 'nullable|string|max:1000',
        ]);

        $user->update($request->only(['name', 'email', 'phone', 'bio']));

        return redirect()->route('profile.show')->with('success', 'Profile updated successfully!');
    }

    /**
     * Delete the user's account.
     */
    public function destroy(Request $request): RedirectResponse
    {
        $request->validate([
            'password' => 'required|current_password',
        ]);

        $user = Auth::user();
        Auth::logout();

        $user->delete();

        $request->session()->invalidate();
        $request->session()->regenerateToken();

        return redirect('/')->with('success', 'Your account has been deleted.');
    }

    /**
     * Show the settings page.
     */
    public function settings(): View
    {
        $user = Auth::user();
        return view('profile.settings', compact('user'));
    }

    /**
     * Update the user's password.
     */
    public function updatePassword(Request $request): RedirectResponse
    {
        $request->validate([
            'current_password' => 'required|current_password',
            'password' => ['required', 'confirmed', Password::defaults()],
        ]);

        Auth::user()->update([
            'password' => Hash::make($request->password),
        ]);

        return redirect()->route('profile.settings')->with('success', 'Password updated successfully!');
    }

    /**
     * Update user preferences.
     */
    public function updatePreferences(Request $request): RedirectResponse
    {
        $request->validate([
            'theme' => 'required|in:light,dark,auto',
            'notifications_email' => 'boolean',
            'notifications_browser' => 'boolean',
            'language' => 'required|string|max:5',
        ]);

        $user = Auth::user();
        
        // If your User model has a preferences JSON column
        $preferences = $user->preferences ?? [];
        $preferences['theme'] = $request->theme;
        $preferences['notifications_email'] = $request->boolean('notifications_email');
        $preferences['notifications_browser'] = $request->boolean('notifications_browser');
        $preferences['language'] = $request->language;
        
        $user->update(['preferences' => $preferences]);

        return redirect()->route('profile.settings')->with('success', 'Preferences updated successfully!');
    }

    /**
     * Update user avatar.
     */
    public function updateAvatar(Request $request): RedirectResponse
    {
        $request->validate([
            'avatar' => 'required|image|mimes:jpeg,png,jpg,gif|max:2048',
        ]);

        $user = Auth::user();

        // Delete old avatar if exists
        if ($user->avatar && Storage::exists('public/' . $user->avatar)) {
            Storage::delete('public/' . $user->avatar);
        }

        // Store new avatar
        $avatarPath = $request->file('avatar')->store('avatars', 'public');

        $user->update(['avatar' => $avatarPath]);

        return redirect()->route('profile.settings')->with('success', 'Avatar updated successfully!');
    }

    /**
     * Show profile completion status.
     */
    public function completion(): View
    {
        $user = Auth::user();
        
        // Calculate completion percentage
        $fields = ['name', 'email', 'phone', 'bio', 'avatar'];
        $completedFields = 0;
        
        foreach ($fields as $field) {
            if (!empty($user->$field)) {
                $completedFields++;
            }
        }
        
        $completionPercentage = round(($completedFields / count($fields)) * 100);
        
        return view('profile.completion', compact('user', 'completionPercentage'));
    }
}