package mcp

import (
	"context"
	"yunyan/lego/core"
	"yunyan/lego/core/cbase"
	"yunyan/lego/sys/log"
	"yunyan/sys/googlemap"
	"yunyan/utils"
	"fmt"

	"github.com/mark3labs/mcp-go/mcp"
)

// 天气查询
type tool_google_map_nearbysearch struct {
	cbase.ModuleCompBase
	module *Mcp
}

// 组件初始化接口
func (this *tool_google_map_nearbysearch) Init(service core.IService, module core.IModule, comp core.IModuleComp, opt core.IModuleOptions) (err error) {
	this.ModuleCompBase.Init(service, module, comp, opt)
	this.module = module.(*Mcp)
	return
}
func (this *tool_google_map_nearbysearch) Start() (err error) {
	err = this.ModuleCompBase.Start()
	if this.module.AddTool(ToolGroup_OVERSEAS, this.Tool(), this.Handl) {
		if err := googlemap.OnInit(this.module.service.GetSettings().Sys["googlemap"]); err != nil {
			panic(fmt.Sprintf("init sys.googlemap err: %s", err.Error()))
		} else {
			log.Infof("init sys.googlemap success!")
		}
	}
	return
}
func (this *tool_google_map_nearbysearch) Tool() (tool mcp.Tool) {
	return mcp.NewTool("google_map_nearbysearch",
		mcp.WithDescription("根据用户提供的地点和半径,搜索附近的地点"),
		mcp.WithString("lat",
			mcp.Description("纬度坐标  例如:39.90909"),
			mcp.Required(),
		),
		mcp.WithString("lng",
			mcp.Description("经度坐标  例如:116.434307"),
			mcp.Required(),
		),
		mcp.WithString("radius",
			mcp.Description("搜索半径,默认5000米,单位:米"),
			mcp.DefaultString("5000"),
		),
		mcp.WithString("keyword",
			mcp.Description("搜索关键词,比如:美食,酒店,银行"),
			mcp.Required(),
		),
	)
}

// Handl 工具处理接口
// 参数:
//   - ctx: 上下文
//   - request: MCP 工具调用请求
//
// 返回值:
//   - result: MCP 工具调用结果
//   - err: 处理过程中的错误
//
// 异常:
//   - 无（不主动 panic）
func (this *tool_google_map_nearbysearch) Handl(ctx context.Context, request mcp.CallToolRequest) (result *mcp.CallToolResult, err error) {
	var (
		lat, lng, location string
		radius             string
		keyword            string
		context            string
	)
	this.module.Debug("tool_google_map_nearbysearch",
		log.Field{Key: "request.Params.Arguments", Value: request.GetRawArguments()},
	)
	if lat, err = request.RequireString("lat"); err != nil || lat == "" {
		err = fmt.Errorf("必要参数:lat丢失")
		context = "获取纬度坐标失败"
		return
	}
	if lng, err = request.RequireString("lng"); err != nil || lng == "" {
		err = fmt.Errorf("必要参数:lng丢失")
		context = "获取经度坐标失败"
		return
	}
	location = fmt.Sprintf("%s,%s", lat, lng)
	radius = request.GetString("radius", "5000")
	if keyword, err = request.RequireString("keyword"); err != nil || keyword == "" {
		err = fmt.Errorf("必要参数:keyword丢失")
		context = "获取搜索关键词失败"
		return
	}
	georesult, err := googlemap.NearbySearch(location, radius, keyword)

	if err != nil {
		context = "地点搜索失败"
		this.module.Debug("tool_google_map_nearbysearch fail",
			log.Field{Key: "location", Value: location},
			log.Field{Key: "radius", Value: radius},
			log.Field{Key: "georesult", Value: georesult},
			log.Field{Key: "err", Value: err},
		)
		return
	} else {
		context = utils.ToString(georesult)
		this.module.Debug("tool_google_map_nearbysearch success",
			log.Field{Key: "location", Value: location},
			log.Field{Key: "radius", Value: radius},
			log.Field{Key: "keyword", Value: keyword},
			log.Field{Key: "georesult size", Value: len(georesult.Items)},
		)
	}
	result = &mcp.CallToolResult{
		Content: []mcp.Content{
			mcp.TextContent{
				Type: "text",
				Text: context,
			},
		},
	}
	return
}