package servers

import (
	"WiiCITMS/process/hr"
	"context"
	"encoding/json"
	"fmt"

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

// HRStaffPositionTools 员工岗位管理工具
var HRStaffPositionTools = []server.ServerTool{
	// 为员工分配岗位
	{
		Tool: mcp.NewTool(
			"assignPosition",
			mcp.WithDescription("为员工分配组织和岗位"),
			mcp.WithString("staffGuid", mcp.Required(), mcp.Description("员工GUID")),
			mcp.WithString("organizationGuid", mcp.Required(), mcp.Description("组织GUID")),
			mcp.WithString("positionGuid", mcp.Description("岗位GUID，可选，不提供则只绑定组织")),
			mcp.WithBoolean("isLeader", mcp.Description("是否是组织负责人，默认false")),
			mcp.WithNumber("recordType", mcp.Description("关系类型，0-主部门/岗位，1-兼职部门/岗位，默认1")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			staffGuid := request.GetString("staffGuid", "")
			if staffGuid == "" {
				return nil, fmt.Errorf("员工GUID不能为空")
			}
			
			orgGuid := request.GetString("organizationGuid", "")
			if orgGuid == "" {
				return nil, fmt.Errorf("组织GUID不能为空")
			}
			
			params := hr.AssignPositionRequest{
				StaffGuid:       staffGuid,
				OrganizationGuid: orgGuid,
				PositionGuid:    request.GetString("positionGuid", ""),
				IsLeader:        request.GetBool("isLeader", false),
				RecordType:      request.GetInt("recordType", 1), // 默认为兼职部门/岗位
			}
			
			result, proc := hr.AssignPosition(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			repStr, err := json.Marshal(result)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 更新员工岗位关系
	{
		Tool: mcp.NewTool(
			"updateStaffPosition",
			mcp.WithDescription("更新员工岗位关系"),
			mcp.WithString("recordGuid", mcp.Required(), mcp.Description("关系记录GUID")),
			mcp.WithString("positionGuid", mcp.Description("岗位GUID")),
			mcp.WithBoolean("isLeader", mcp.Description("是否是组织负责人")),
			mcp.WithNumber("recordType", mcp.Description("关系类型，0-主部门/岗位，1-兼职部门/岗位")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			recordGuid := request.GetString("recordGuid", "")
			if recordGuid == "" {
				return nil, fmt.Errorf("关系记录GUID不能为空")
			}
			
			params := hr.UpdateStaffPositionRequest{
				RecordGuid:   recordGuid,
				PositionGuid: request.GetString("positionGuid", ""),
				IsLeader:     request.GetBool("isLeader", false),
				RecordType:   request.GetInt("recordType", 1),
			}
			
			result, proc := hr.UpdateStaffPosition(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			repStr, err := json.Marshal(result)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 移除员工岗位
	{
		Tool: mcp.NewTool(
			"removeStaffPosition",
			mcp.WithDescription("移除员工的组织和岗位关联"),
			mcp.WithString("staffGuid", mcp.Required(), mcp.Description("员工GUID")),
			mcp.WithString("organizationGuid", mcp.Required(), mcp.Description("组织GUID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			staffGuid := request.GetString("staffGuid", "")
			if staffGuid == "" {
				return nil, fmt.Errorf("员工GUID不能为空")
			}
			
			orgGuid := request.GetString("organizationGuid", "")
			if orgGuid == "" {
				return nil, fmt.Errorf("组织GUID不能为空")
			}
			
			params := hr.RemoveStaffPositionRequest{
				StaffGuid:       staffGuid,
				OrganizationGuid: orgGuid,
			}
			
			proc := hr.RemoveStaffPosition(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			result := map[string]bool{"success": true}
			repStr, err := json.Marshal(result)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 获取员工的所有组织和岗位关联
	{
		Tool: mcp.NewTool(
			"getStaffPositions",
			mcp.WithDescription("获取员工的所有组织和岗位关联"),
			mcp.WithString("staffGuid", mcp.Required(), mcp.Description("员工GUID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			staffGuid := request.GetString("staffGuid", "")
			if staffGuid == "" {
				return nil, fmt.Errorf("员工GUID不能为空")
			}
			
			result, proc := hr.GetStaffPositions(staffGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			repStr, err := json.Marshal(result)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
}