package acp

import "regexp"

// DefaultToolLabel 未命中任何规则时的兜底简述
const DefaultToolLabel = "调用工具"

// mcpIdentRe 判断 title 是否为 MCP 工具标识名（service_/data_/storage_/plane_/util_ 前缀）。
// 仅在标识名形态下才走「动作 + 对象」组合，避免误伤内置工具的自然语言 title。
var mcpIdentRe = regexp.MustCompile(`(?i)(^|[^a-z])(service|data|storage|plane|util)_[a-z]`)

// domainNoiseRe 域名中会误触发动作识别的噪声片段（其中的 update 属于对象名而非动作）。
// 在动作识别前先剔除，避免 auto_update / update_log 等被误判为“更新”动作。
var domainNoiseRe = regexp.MustCompile(`(?i)auto_update|system_update|ahub_update|update_log`)

// objectRule 对象词识别规则（title 片段 → 对象中文名）
type objectRule struct {
	re   *regexp.Regexp
	noun string
}

// objectRules 顺序即优先级，更具体的对象必须排在更宽泛的之前。
var objectRules = []objectRule{
	// —— Plane 项目管理相关对象 ——
	{regexp.MustCompile(`(?i)fault_record`), "故障工单"},
	{regexp.MustCompile(`(?i)intake_issue`), "收件箱工作项"},
	{regexp.MustCompile(`(?i)sub_issue`), "子工作项"},
	{regexp.MustCompile(`(?i)issue_relation|_relation`), "工作项关联"},
	{regexp.MustCompile(`(?i)issue_link`), "工作项链接"},
	{regexp.MustCompile(`(?i)work_item|_issues?(_|$)|_issue(_|$)|issue`), "工作项"},
	{regexp.MustCompile(`(?i)cycle`), "周期"},
	{regexp.MustCompile(`(?i)module`), "模块"},
	{regexp.MustCompile(`(?i)page`), "页面"},
	{regexp.MustCompile(`(?i)workspace_member`), "工作空间成员"},
	{regexp.MustCompile(`(?i)project_member`), "项目成员"},
	{regexp.MustCompile(`(?i)project_asset`), "项目资源"},
	{regexp.MustCompile(`(?i)workspace`), "工作空间"},
	{regexp.MustCompile(`(?i)project`), "项目"},
	{regexp.MustCompile(`(?i)label`), "标签"},
	{regexp.MustCompile(`(?i)state`), "状态"},
	{regexp.MustCompile(`(?i)comment`), "评论"},
	{regexp.MustCompile(`(?i)sticky|stickies`), "便签"},
	{regexp.MustCompile(`(?i)assets?|entity`), "资源"},

	// —— 站点 / 监控 / 数据相关对象 ——
	{regexp.MustCompile(`(?i)alarm_snapshot`), "告警快照"},
	{regexp.MustCompile(`(?i)alarm_statistic`), "告警统计"},
	{regexp.MustCompile(`(?i)event_alarm`), "事件告警"},
	{regexp.MustCompile(`(?i)alarm`), "告警"},
	{regexp.MustCompile(`(?i)shutdown`), "停机"},
	{regexp.MustCompile(`(?i)power_flow`), "功率流"},
	{regexp.MustCompile(`(?i)mode_info`), "运行模式"},
	{regexp.MustCompile(`(?i)base_info`), "基础信息"},
	{regexp.MustCompile(`(?i)tou_template`), "电价模板"},
	{regexp.MustCompile(`(?i)apower_version`), "APower版本"},
	{regexp.MustCompile(`(?i)auto_update|_package|升级包`), "升级包"},
	{regexp.MustCompile(`(?i)batch_download`), "批量下载"},
	{regexp.MustCompile(`(?i)background_task`), "后台任务"},
	{regexp.MustCompile(`(?i)site_analysis`), "站点分析"},
	{regexp.MustCompile(`(?i)site_monitor`), "站点监控"},
	{regexp.MustCompile(`(?i)_tag|tags_`), "站点标签"},
	{regexp.MustCompile(`(?i)site`), "站点"},
	{regexp.MustCompile(`(?i)data_pool`), "数据池"},
	{regexp.MustCompile(`(?i)_card|_sim|sim_`), "SIM卡"},
	{regexp.MustCompile(`(?i)dashboard`), "看板"},
	{regexp.MustCompile(`(?i)feedback`), "反馈"},
	{regexp.MustCompile(`(?i)monitor`), "监控"},
	{regexp.MustCompile(`(?i)snapshot`), "快照数据"},
	{regexp.MustCompile(`(?i)system_update_log|ahub_update_log|update_log`), "升级日志"},
	{regexp.MustCompile(`(?i)ems_log|mqtt_log|_log(_|$)`), "日志"},
	{regexp.MustCompile(`(?i)pid_info|vid_info|emspara`), "EMS参数"},

	// —— 数据库 / 存储 ——
	{regexp.MustCompile(`(?i)mongo`), "MongoDB"},
	{regexp.MustCompile(`(?i)redis`), "Redis缓存"},
	{regexp.MustCompile(`(?i)pgsql`), "PostgreSQL"},
	{regexp.MustCompile(`(?i)file|minio|object`), "文件"},
}

// actionRule 动作词识别规则（title 片段 → 动词 + 后缀）
type actionRule struct {
	re     *regexp.Regexp
	verb   string
	suffix string
}

// actionRules 顺序即优先级。变更类动作先于查询类；unarchive 先于 archive；list 先于 get。
var actionRules = []actionRule{
	{regexp.MustCompile(`(?i)unarchive`), "取消归档", ""},
	{regexp.MustCompile(`(?i)archive`), "归档", ""},
	{regexp.MustCompile(`(?i)create`), "创建", ""},
	{regexp.MustCompile(`(?i)update|mark`), "更新", ""},
	{regexp.MustCompile(`(?i)delete`), "删除", ""},
	{regexp.MustCompile(`(?i)remove`), "移除", ""},
	{regexp.MustCompile(`(?i)accept`), "受理", ""},
	{regexp.MustCompile(`(?i)reject`), "驳回", ""},
	{regexp.MustCompile(`(?i)add`), "添加", ""},
	{regexp.MustCompile(`(?i)bind`), "绑定", ""},
	{regexp.MustCompile(`(?i)trigger`), "触发", ""},
	{regexp.MustCompile(`(?i)upload`), "上传", ""},
	{regexp.MustCompile(`(?i)write`), "写入", ""},
	{regexp.MustCompile(`(?i)read`), "读取", ""},
	{regexp.MustCompile(`(?i)search`), "搜索", ""},
	{regexp.MustCompile(`(?i)_list(_|$)|list_|_tree|name_list`), "查询", "列表"},
	// 查询类兜底动词（get/detail/info/find/query/count/exists 等）
	{regexp.MustCompile(`(?i)get|detail|info|find|query|count|exists|options|config|summary|activit`), "查询", ""},
}

// fallbackRules 非 MCP 标识名（内置工具 / 中文描述 / 通用关键词）的兜底映射表。
type toolLabelRule struct {
	re    *regexp.Regexp
	label string
}

var fallbackRules = []toolLabelRule{
	{regexp.MustCompile(`(?i)web_search|联网搜索`), "联网搜索"},
	{regexp.MustCompile(`(?i)web_fetch|fetch|抓取|网页`), "抓取网页"},
	{regexp.MustCompile(`(?i)knowledge|知识库|检索`), "知识库检索"},
	{regexp.MustCompile(`(?i)subagent|子任务`), "子任务处理"},
	{regexp.MustCompile(`(?i)todo|任务清单`), "任务清单"},
	{regexp.MustCompile(`(?i)introspect`), "功能查询"},
	{regexp.MustCompile(`(?i)\bcode\b|代码`), "代码分析"},
	{regexp.MustCompile(`(?i)grep|搜索|查找`), "搜索内容"},
	{regexp.MustCompile(`(?i)glob|查找文件`), "查找文件"},
	{regexp.MustCompile(`(?i)read|cat|查看|读取`), "读取文件"},
	{regexp.MustCompile(`(?i)write|create|edit|写入|修改`), "写入文件"},
	{regexp.MustCompile(`(?i)util_|parse_sn`), "解析序列号"},
	{regexp.MustCompile(`(?i)execut|bash|shell|command|执行|运行`), "执行命令"},
}

// DescribeTool 根据工具调用 title 返回详细描述（动作 + 对象）。
//
//	MCP 标识名形态：组合「动作 + 对象」，如 create_issue -> “创建工作项”，
//	                list_work_items -> “查询工作项列表”。
//	其他形态：回退到关键词兜底表；无命中返回 DefaultToolLabel。
func DescribeTool(title string) string {
	if title == "" {
		return DefaultToolLabel
	}

	// MCP 标识名 → 动作 + 对象 组合
	if mcpIdentRe.MatchString(title) {
		obj := ""
		for _, r := range objectRules {
			if r.re.MatchString(title) {
				obj = r.noun
				break
			}
		}
		if obj != "" {
			// 默认动作为“查询”（大多数无动词的工具是读取类）
			verb, suffix := "查询", ""
			// 剔除域名噪声后再识别动作，避免 auto_update / update_log 误判为“更新”
			actionSrc := domainNoiseRe.ReplaceAllString(title, "_")
			for _, a := range actionRules {
				if a.re.MatchString(actionSrc) {
					verb, suffix = a.verb, a.suffix
					break
				}
			}
			return verb + obj + suffix
		}
	}

	// 回退：内置工具 / 中文描述 / 通用关键词
	for _, r := range fallbackRules {
		if r.re.MatchString(title) {
			return r.label
		}
	}
	return DefaultToolLabel
}

// NormalizeStatus 将 ACP / 各来源的工具状态归一化为前端使用的三态：
// running / completed / error。
//
//	pending, in_progress, running -> running
//	completed                     -> completed
//	failed, error                 -> error
//	其他（未知）                    -> running（先按运行中处理，避免误判为错误）
func NormalizeStatus(raw string) string {
	switch raw {
	case "pending", "in_progress", "running":
		return "running"
	case "completed":
		return "completed"
	case "failed", "error":
		return "error"
	default:
		return "running"
	}
}