<?php

namespace App\Livewire\Pages;

use Livewire\Component;
use App\Models\Song;

class SearchSong extends Component
{
    public string $search = '';
    public $searchCategory = '';
    public $selectedLanguage = '國語'; // 預設語言

    /**
     * 初始化（接收外部傳入的分類參數）
     */
    public function mount(string $searchCategory = '')
    {
        $this->searchCategory = $searchCategory;
    }

    /**
     * 切換語言標籤
     */
    public function selectLanguage(string $lang): void
    {
        $this->selectedLanguage = $lang;
    }
    //public function updatedSearch()
    //{
    //   dd($this->search);
    //}

    /**
     * 點歌
     */
    public function orderSong(int $songId): void
    {
        // TODO: 加入已點歌曲邏輯，例如：
        // auth()->user()->room->addSong($songId);

        $this->dispatchBrowserEvent('notify', [
            'message' => '已加入已點歌曲'
        ]);
    }

    /**
     * 取得歌曲清單
     */
    protected function loadSongs()
    {
        return Song::query()
            ->when($this->search !== null && $this->search !== '', function ($q) {
                $q->where('name', 'like', "{$this->search}%");
            })
            ->when($this->selectedLanguage, function ($q) {
                $q->where('language_type', $this->selectedLanguage);
            })
            ->when($this->searchCategory === 'New', function ($q) {
                $q->orderByDesc('created_at');
            })
            ->when($this->searchCategory === 'Hot', function ($q) {
                $q->orderByDesc('song_counts');
            }, function ($q) {
                $q->orderBy('name');
            })
            ->take($this->search ? 100 : 200) // 搜尋就多拿點，不搜尋就少拿
            ->get();
    }

    /**
     * Render
     */
    public function render()
    {
        $songs = $this->loadSongs();

        return view('livewire.pages.search-song', [
            'songs' => $songs,
            'languages' => \App\Enums\SongLanguageType::options(),
            'selectedLanguage' => $this->selectedLanguage,
        ]);
    }
}