package servers

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

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

// HRStaffTools 员工管理工具
var HRStaffTools = []server.ServerTool{
	// 创建员工并指定所属组织
	{
		Tool: mcp.NewTool(
			"createStaffWithOrganization",
			mcp.WithDescription("创建员工并指定所属组织"),
			mcp.WithString("staffName", mcp.Required(), mcp.Description("员工姓名")),
			mcp.WithString("affiliated", mcp.Required(), mcp.Description("所属组织GUID")),
			mcp.WithNumber("staffType", mcp.Description("员工类型，0-正式员工，1-实习员工，2-外包员工，默认0")),
			mcp.WithNumber("affiliatedType", mcp.Description("隶属关系类型，0-主部门，1-兼职部门，默认0")),
			mcp.WithString("account", mcp.Description("账号（可选）")),
			mcp.WithString("userGuid", mcp.Description("SSO平台用户GUID（可选）")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			staffName := request.GetString("staffName", "")
			if staffName == "" {
				return nil, fmt.Errorf("员工姓名不能为空")
			}
			
			affiliated := request.GetString("affiliated", "")
			if affiliated == "" {
				return nil, fmt.Errorf("所属组织不能为空")
			}
			
			params := hr.CreateStaffWithOrganizationRequest{
				StaffName:      staffName,
				Affiliated:     affiliated,
				StaffType:      request.GetInt("staffType", 0),
				AffiliatedType: request.GetInt("affiliatedType", 0),
				Account:        request.GetString("account", ""),
				UserGuid:       request.GetString("userGuid", ""),
			}
			
			staff, proc := hr.CreateStaffWithOrganization(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			repStr, err := json.Marshal(staff)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 绑定SSO用户到员工
	{
		Tool: mcp.NewTool(
			"bindStaff",
			mcp.WithDescription("绑定SSO用户到员工"),
			mcp.WithString("staffGuid", mcp.Required(), mcp.Description("员工GUID")),
			mcp.WithString("account", mcp.Description("账号")),
			mcp.WithString("userGuid", mcp.Description("SSO平台用户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")
			}
			
			account := request.GetString("account", "")
			userGuid := request.GetString("userGuid", "")
			
			if account == "" && userGuid == "" {
				return nil, fmt.Errorf("账号和用户GUID至少提供一个")
			}
			
			params := hr.BindStaffRequest{
				StaffGuid: staffGuid,
				Account:   account,
				UserGuid:  userGuid,
			}
			
			staff, proc := hr.BindStaff(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			repStr, err := json.Marshal(staff)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 解除员工与SSO用户的绑定
	{
		Tool: mcp.NewTool(
			"unbindStaff",
			mcp.WithDescription("解除员工与SSO用户的绑定"),
			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")
			}
			
			staff, proc := hr.UnbindStaff(staffGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			repStr, err := json.Marshal(staff)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 获取员工详情
	{
		Tool: mcp.NewTool(
			"getStaff",
			mcp.WithDescription("获取员工详情"),
			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")
			}
			
			staffDetail, proc := hr.GetStaff(staffGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			repStr, err := json.Marshal(staffDetail)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 查询员工列表
	{
		Tool: mcp.NewTool(
			"queryStaffs",
			mcp.WithDescription("查询员工列表"),
			mcp.WithString("staffName", mcp.Description("员工姓名，模糊匹配")),
			mcp.WithString("account", mcp.Description("账号，精确匹配")),
			mcp.WithString("userGuid", mcp.Description("SSO平台用户GUID")),
			mcp.WithString("organizationGuid", mcp.Description("所属组织GUID")),
			mcp.WithNumber("staffType", mcp.Description("员工类型")),
			mcp.WithNumber("limit", mcp.Description("分页参数，每页数量")),
			mcp.WithNumber("offset", mcp.Description("分页参数，偏移量")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			params := hr.QueryStaffRequest{
				StaffName:       request.GetString("staffName", ""),
				Account:         request.GetString("account", ""),
				UserGuid:        request.GetString("userGuid", ""),
				OrganizationGuid: request.GetString("organizationGuid", ""),
				StaffType:       request.GetInt("staffType", 0),
				Limit:           request.GetInt("limit", 20),
				Offset:          request.GetInt("offset", 0),
			}
			
			staffs, proc := hr.QueryStaffs(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			repStr, err := json.Marshal(staffs)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 根据SSO用户GUID获取员工
	{
		Tool: mcp.NewTool(
			"getStaffByUserGuid",
			mcp.WithDescription("根据SSO用户GUID获取员工"),
			mcp.WithString("userGuid", mcp.Required(), mcp.Description("SSO平台用户GUID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			userGuid := request.GetString("userGuid", "")
			if userGuid == "" {
				return nil, fmt.Errorf("用户GUID不能为空")
			}
			
			staffDetail, proc := hr.GetStaffByUserGuid(userGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			repStr, err := json.Marshal(staffDetail)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 根据账号获取员工
	{
		Tool: mcp.NewTool(
			"getStaffByAccount",
			mcp.WithDescription("根据账号获取员工"),
			mcp.WithString("account", mcp.Required(), mcp.Description("账号")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			account := request.GetString("account", "")
			if account == "" {
				return nil, fmt.Errorf("账号不能为空")
			}
			
			staffDetail, proc := hr.GetStaffByAccount(account)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}
			
			repStr, err := json.Marshal(staffDetail)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
}