<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\Channel;
use App\Models\User;
use Illuminate\Http\Request;
use Illuminate\Validation\Rule;

class AgentUserController extends Controller
{
    public function index()
    {
        return view('admin.agents.index');
    }

    public function data(Request $request)
    {
        $q = User::query()->withCount('channels');

        $username = trim((string) $request->query('username', ''));
        $status = $request->query('status');
        if ($username !== '') {
            $q->where('username', 'like', '%'.$username.'%');
        }
        if ($status !== null && $status !== '') {
            $q->where('status', (int) $status);
        }

        $sortable = ['id', 'username', 'status', 'created_at', 'updated_at'];
        $field = (string) $request->query('field', 'id');
        $order = strtolower((string) $request->query('order', 'desc')) === 'asc' ? 'asc' : 'desc';
        if (! in_array($field, $sortable, true)) {
            $field = 'id';
        }
        $q->orderBy($field, $order);

        $limit = max(1, min(100, (int) $request->query('limit', 15)));
        $page = max(1, (int) $request->query('page', 1));
        $paginator = $q->paginate($limit, ['*'], 'page', $page);

        $data = collect($paginator->items())->map(function (User $u) {
            return [
                'id' => $u->id,
                'username' => $u->username,
                'status' => (int) $u->status,
                'comment' => $u->comment ?: '',
                'channels_count' => (int) $u->channels_count,
                'created_at' => optional($u->created_at)->format('Y-m-d H:i:s'),
                'updated_at' => optional($u->updated_at)->format('Y-m-d H:i:s'),
            ];
        })->values();

        return response()->json([
            'code' => 0,
            'msg' => '',
            'count' => $paginator->total(),
            'data' => $data,
        ]);
    }

    public function store(Request $request)
    {
        $data = $request->validate([
            'username' => ['required', 'string', 'max:64', 'alpha_dash', Rule::unique('users', 'username')],
            'password' => ['required', 'string', 'min:6', 'max:128'],
            'comment' => ['nullable', 'string', 'max:255'],
            'status' => ['nullable', 'integer', Rule::in([0, 1])],
        ]);

        $user = User::query()->create([
            'username' => $data['username'],
            'password' => $data['password'],
            'comment' => $data['comment'] ?? null,
            'status' => (int) ($data['status'] ?? 1),
        ]);

        return response()->json(['code' => 0, 'msg' => 'ok', 'data' => ['id' => $user->id]]);
    }

    public function update(Request $request, User $agent)
    {
        $data = $request->validate([
            'password' => ['nullable', 'string', 'min:6', 'max:128'],
            'comment' => ['nullable', 'string', 'max:255'],
            'status' => ['nullable', 'integer', Rule::in([0, 1])],
        ]);

        if (array_key_exists('comment', $data)) {
            $agent->comment = $data['comment'];
        }
        if (array_key_exists('status', $data) && $data['status'] !== null) {
            $agent->status = (int) $data['status'];
        }
        if (! empty($data['password'])) {
            $agent->password = $data['password'];
        }
        $agent->save();

        return response()->json(['code' => 0, 'msg' => 'ok']);
    }

    public function channels(User $agent)
    {
        $rows = Channel::query()
            ->where('user_id', $agent->id)
            ->orderByDesc('id')
            ->get()
            ->map(fn (Channel $c) => [
                'id' => $c->id,
                'channel_id' => $c->channel_id,
                'status' => (int) $c->status,
                'remark' => $c->remark ?: '',
                'links' => $c->supportLinks(),
            ])
            ->values();

        return response()->json(['code' => 0, 'msg' => '', 'data' => $rows]);
    }
}