<?php

namespace App\Http\Controllers\Admin;

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

class UserManagementController extends Controller
{
    /**
     * Display a listing of users.
     */
    public function index(Request $request)
    {
        $query = User::with('roles');

        // Search
        if ($request->filled('search')) {
            $search = $request->search;
            $query->where(function ($q) use ($search) {
                $q->where('name', 'like', "%{$search}%")
                    ->orWhere('email', 'like', "%{$search}%");
            });
        }

        // Filter by role
        if ($request->filled('role')) {
            $query->whereHas('roles', function ($q) use ($request) {
                $q->where('slug', $request->role);
            });
        }

        $users = $query->latest()->paginate(20);
        $roles = Role::all();

        return view('admin.users.index', compact('users', 'roles'));
    }

    /**
     * Show the form for editing a user.
     */
    public function edit(User $user)
    {
        $roles = Role::all();
        return view('admin.users.edit', compact('user', 'roles'));
    }

    /**
     * Update the specified user.
     */
    public function update(Request $request, User $user)
    {
        $validated = $request->validate([
            'name' => ['required', 'string', 'max:255'],
            'email' => ['required', 'string', 'email', 'max:255', Rule::unique('users')->ignore($user->id)],
            'password' => ['nullable', 'string', 'min:8', 'confirmed'],
            'roles' => ['required', 'array', 'min:1'],
            'roles.*' => ['exists:roles,id'],
            'bio' => ['nullable', 'string', 'max:500'],
            'website' => ['nullable', 'url', 'max:255'],
            'twitter' => ['nullable', 'string', 'max:255'],
            'github' => ['nullable', 'string', 'max:255'],
            'linkedin' => ['nullable', 'string', 'max:255'],
        ]);

        // Update user data
        $user->name = $validated['name'];
        $user->email = $validated['email'];
        $user->bio = $validated['bio'] ?? null;
        $user->website = $validated['website'] ?? null;
        $user->twitter = $validated['twitter'] ?? null;
        $user->github = $validated['github'] ?? null;
        $user->linkedin = $validated['linkedin'] ?? null;

        // Update password if provided
        if ($request->filled('password')) {
            $user->password = Hash::make($validated['password']);
        }

        $user->save();

        // Sync roles
        $user->roles()->sync($validated['roles']);

        return redirect()->route('admin.users.index')
            ->with('success', 'User updated successfully.');
    }

    /**
     * Remove the specified user.
     */
    public function destroy(User $user)
    {
        // Prevent self-deletion
        if ($user->id === auth()->id()) {
            return redirect()->route('admin.users.index')
                ->with('error', 'You cannot delete your own account.');
        }

        // Delete user's related data or handle as needed
        $user->delete();

        return redirect()->route('admin.users.index')
            ->with('success', 'User deleted successfully.');
    }

    /**
     * Toggle user's role.
     */
    public function toggleRole(User $user, Role $role)
    {
        if ($user->roles->contains($role)) {
            // Check if removing the last role
            if ($user->roles->count() === 1) {
                return back()->with('error', 'User must have at least one role.');
            }
            $user->roles()->detach($role->id);
            $message = "Role '{$role->name}' removed from user.";
        } else {
            $user->roles()->attach($role->id);
            $message = "Role '{$role->name}' added to user.";
        }

        return back()->with('success', $message);
    }
}