<?php

namespace App\Controllers;

use App\Models\FavoriteWordModel;
use App\Models\EWWordModel;

class FavoriteWord extends BaseController
{
    public function addFavorite()
    {
        if (!$this->checkLogin_ajax()) {
            return $this->response->setJSON(['status' => 'error', 'message' => 'User not logged in.']);
        }

        $user_id = $this->session->get('useremail');
        $ew_word_pid = $this->request->getPost('ew_word_pid');

        $favoriteWordModel = new FavoriteWordModel();

        // 이미 관심단어로 추가된 경우 중복 추가 방지
        if ($favoriteWordModel->isFavorite($user_id, $ew_word_pid)) {
            return $this->response->setJSON(['status' => 'error', 'message' => 'Word already in favorites.']);
        }

        $data = [
            'user_id' => $user_id,
            'ew_word_pid' => $ew_word_pid
        ];


        if ($favoriteWordModel->insert($data)) {
            return $this->response->setJSON(['status' => 'success', 'message' => 'Word added to favorites.']);
        } else {
            return $this->response->setJSON(['status' => 'error', 'message' => 'Failed to add word to favorites.']);
        }
    }

    public function removeFavorite()
    {
        if (!$this->checkLogin_ajax()) {
            return $this->response->setJSON(['status' => 'error', 'message' => 'User not logged in.']);
        }

        $user_id = $this->session->get('useremail');
        $ew_word_pid = $this->request->getPost('ew_word_pid');

        $favoriteWordModel = new FavoriteWordModel();
        if ($favoriteWordModel->removeFavorite($user_id, $ew_word_pid)) {
            return $this->response->setJSON(['status' => 'success', 'message' => 'Word removed from favorites.']);
        } else {
            return $this->response->setJSON(['status' => 'error', 'message' => 'Failed to remove word from favorites.']);
        }
    }

    public function getFavoriteWords()
    {
        if (!$this->checkLogin_ajax()) {
            return $this->response->setJSON(['status' => 'error', 'message' => 'User not logged in.']);
        }

        $user_id = $this->session->get('useremail');
        $favoriteWordModel = new FavoriteWordModel();
        $ewWordModel = new EWWordModel();

        $favoriteWords = $favoriteWordModel->where('user_id', $user_id)->findAll();
        $favoriteWordDetails = [];

        foreach ($favoriteWords as $favorite) {
            $wordDetail = $ewWordModel->find($favorite['ew_word_pid']);
            if ($wordDetail) {
                $favoriteWordDetails[] = $wordDetail;
            }
        }

        return view('favorite_words', ['favoriteWords' => $favoriteWordDetails]);
    }
}