package servers

import (
	"context"
	"encoding/json"
	"github.com/mark3labs/mcp-go/mcp"
	"github.com/mark3labs/mcp-go/server"
)

// ScheduleTools MCP工具：仅注册接口，不暴露提醒发送功能
var ScheduleTools = []server.ServerTool{
	// 创建日程
	{
		Tool: mcp.NewTool(
			"createSchedule",
			mcp.WithDescription("创建个人日程 (不包含提醒发送)"),
			mcp.WithString("ownerStaffGuid", mcp.Required(), mcp.Description("所属员工GUID")),
			mcp.WithString("title", mcp.Required(), mcp.Description("标题")),
			mcp.WithString("description", mcp.Description("描述")),
			mcp.WithString("location", mcp.Description("地点")),
			mcp.WithString("startTime", mcp.Required(), mcp.Description("开始时间，ISO8601")),
			mcp.WithString("endTime", mcp.Required(), mcp.Description("结束时间，ISO8601")),
			mcp.WithBoolean("allDay", mcp.Description("是否全天")),
			mcp.WithNumber("remindMinutesBefore", mcp.Description("提前提醒分钟数，0为不提醒")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			// TODO: call procOa.CreateSchedule when implemented
			payload := map[string]interface{}{
				"message": "createSchedule is registered",
			}
			b, _ := json.Marshal(payload)
			return mcp.NewToolResultText(string(b)), nil
		},
	},
	// 更新日程
	{
		Tool: mcp.NewTool(
			"updateSchedule",
			mcp.WithDescription("更新个人日程 (不包含提醒发送)"),
			mcp.WithString("scheduleGuid", mcp.Required(), mcp.Description("日程GUID")),
			mcp.WithString("title", mcp.Description("标题")),
			mcp.WithString("description", mcp.Description("描述")),
			mcp.WithString("location", mcp.Description("地点")),
			mcp.WithString("startTime", mcp.Description("开始时间，ISO8601")),
			mcp.WithString("endTime", mcp.Description("结束时间，ISO8601")),
			mcp.WithBoolean("allDay", mcp.Description("是否全天")),
			mcp.WithNumber("remindMinutesBefore", mcp.Description("提前提醒分钟数，0为不提醒")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			// TODO: call procOa.UpdateSchedule when implemented
			payload := map[string]interface{}{
				"message": "updateSchedule is registered",
			}
			b, _ := json.Marshal(payload)
			return mcp.NewToolResultText(string(b)), nil
		},
	},
	// 查询日程
	{
		Tool: mcp.NewTool(
			"listSchedules",
			mcp.WithDescription("按员工与时间范围查询个人日程"),
			mcp.WithString("ownerStaffGuid", mcp.Required(), mcp.Description("所属员工GUID")),
			mcp.WithString("from", mcp.Description("开始范围，ISO8601，可选")),
			mcp.WithString("to", mcp.Description("结束范围，ISO8601，可选")),
			mcp.WithNumber("limit", mcp.Description("分页大小，默认20")),
			mcp.WithNumber("offset", mcp.Description("分页偏移，默认0")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			// TODO: call procOa.ListSchedules when implemented
			payload := map[string]interface{}{
				"message": "listSchedules is registered",
			}
			b, _ := json.Marshal(payload)
			return mcp.NewToolResultText(string(b)), nil
		},
	},
	// 冲突检查
	{
		Tool: mcp.NewTool(
			"checkScheduleConflicts",
			mcp.WithDescription("检查日程时间是否冲突"),
			mcp.WithString("ownerStaffGuid", mcp.Required(), mcp.Description("所属员工GUID")),
			mcp.WithString("startTime", mcp.Required(), mcp.Description("开始时间，ISO8601")),
			mcp.WithString("endTime", mcp.Required(), mcp.Description("结束时间，ISO8601")),
			mcp.WithString("excludeGuid", mcp.Description("更新时排除自身GUID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			// TODO: call procOa.CheckScheduleConflicts when implemented
			payload := map[string]interface{}{
				"message": "checkScheduleConflicts is registered",
			}
			b, _ := json.Marshal(payload)
			return mcp.NewToolResultText(string(b)), nil
		},
	},
	// 取消日程（可选）
	{
		Tool: mcp.NewTool(
			"cancelSchedule",
			mcp.WithDescription("取消个人日程 (将状态置为取消)"),
			mcp.WithString("scheduleGuid", mcp.Required(), mcp.Description("日程GUID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			// TODO: call procOa.CancelSchedule when implemented
			payload := map[string]interface{}{
				"message": "cancelSchedule is registered",
			}
			b, _ := json.Marshal(payload)
			return mcp.NewToolResultText(string(b)), nil
		},
	},
}

// RegisterScheduleTools 将日程工具附加到传入工具数组
func RegisterScheduleTools(tools *[]server.ServerTool) {
	if tools == nil {
		return
	}
	*tools = append(*tools, ScheduleTools...)
}