// Package service 业务逻辑层
package service

import (
	"billai-server/adapter"
)

// CleanOptions 清洗选项（保持向后兼容）
type CleanOptions = adapter.CleanOptions

// CleanResult 清洗结果（保持向后兼容）
type CleanResult = adapter.CleanResult

// RunCleanScript 执行清洗脚本（使用适配器）
// inputPath: 输入文件路径
// outputPath: 输出文件路径
// opts: 清洗选项
func RunCleanScript(inputPath, outputPath string, opts *CleanOptions) (*CleanResult, error) {
	cleaner := adapter.GetCleaner()
	return cleaner.Clean(inputPath, outputPath, opts)
}

// DetectBillTypeFromOutput 从脚本输出中检测账单类型
// 保留此函数以兼容其他调用
func DetectBillTypeFromOutput(output string) string {
	if containsSubstring(output, "支付宝") {
		return "alipay"
	}
	if containsSubstring(output, "微信") {
		return "wechat"
	}
	return ""
}

// containsSubstring 检查字符串是否包含子串
func containsSubstring(s, substr string) bool {
	return len(s) >= len(substr) && (s == substr || len(substr) == 0 ||
		(len(s) > 0 && len(substr) > 0 && findSubstring(s, substr)))
}

func findSubstring(s, substr string) bool {
	for i := 0; i <= len(s)-len(substr); i++ {
		if s[i:i+len(substr)] == substr {
			return true
		}
	}
	return false
}