<?php

declare(strict_types=1);

namespace app\adminapi\logic\tcm;

use app\common\logic\BaseLogic;
use app\common\model\tcm\PrescriptionLibrary;

/**
 * 处方库逻辑层
 */
class PrescriptionLibraryLogic extends BaseLogic
{
    /**
     * @notes 添加处方库
     */
    public static function add(array $params): ?int
    {
        try {
            // 处理药材数据
            if (isset($params['herbs']) && is_array($params['herbs'])) {
                $params['herbs'] = json_encode($params['herbs'], JSON_UNESCAPED_UNICODE);
            }

            $model = PrescriptionLibrary::create($params);
            return $model->id;
        } catch (\Exception $e) {
            self::setError($e->getMessage());
            return null;
        }
    }

    /**
     * @notes 编辑处方库
     */
    public static function edit(array $params, int $adminId): bool
    {
        try {
            $model = PrescriptionLibrary::findOrEmpty($params['id']);
            if ($model->isEmpty()) {
                self::setError('处方不存在');
                return false;
            }

            // 权限检查：只有创建者或公开的处方才能编辑
            if ($model->creator_id != $adminId && $model->is_public != 1) {
                self::setError('无权限编辑此处方');
                return false;
            }

            // 处理药材数据
            if (isset($params['herbs']) && is_array($params['herbs'])) {
                $params['herbs'] = json_encode($params['herbs'], JSON_UNESCAPED_UNICODE);
            }

            $model->save($params);
            return true;
        } catch (\Exception $e) {
            self::setError($e->getMessage());
            return false;
        }
    }

    /**
     * @notes 删除处方库
     */
    public static function delete(int $id, int $adminId): bool
    {
        try {
            $model = PrescriptionLibrary::findOrEmpty($id);
            if ($model->isEmpty()) {
                self::setError('处方不存在');
                return false;
            }

            // 权限检查：只有创建者才能删除
            if ($model->creator_id != $adminId) {
                self::setError('无权限删除此处方');
                return false;
            }

            $model->delete();
            return true;
        } catch (\Exception $e) {
            self::setError($e->getMessage());
            return false;
        }
    }

    /**
     * @notes 处方库详情
     */
    public static function detail(int $id, int $adminId): ?array
    {
        try {
            $model = PrescriptionLibrary::findOrEmpty($id);
            if ($model->isEmpty()) {
                return null;
            }

            // 权限检查：只有创建者或公开的处方才能查看
            if ($model->creator_id != $adminId && $model->is_public != 1) {
                return null;
            }

            $data = $model->toArray();
            
            // 解析药材JSON
            if (!empty($data['herbs'])) {
                $data['herbs'] = json_decode($data['herbs'], true);
            } else {
                $data['herbs'] = [];
            }

            return $data;
        } catch (\Exception $e) {
            self::setError($e->getMessage());
            return null;
        }
    }
}