package servers

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

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

// HROrgPositionTools 组织与岗位相关工具
var HROrgPositionTools = []server.ServerTool{
	// 查询组织列表（增强版）
	{
		Tool: mcp.NewTool(
			"queryOrganizations",
			mcp.WithDescription("查询组织列表，支持更多查询条件"),
			mcp.WithString("organizationName", mcp.Description("组织名称，模糊查询")),
			mcp.WithString("parentGuid", mcp.Description("父组织ID，可选")),
			mcp.WithBoolean("includeChildren", mcp.Description("是否包含子组织")),
			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.QueryOrganizationsRequest{
				OrganizationName: request.GetString("organizationName", ""),
				ParentGuid:       request.GetString("parentGuid", ""),
				IncludeChildren:  request.GetBool("includeChildren", false),
				Limit:            request.GetInt("limit", 20),
				Offset:           request.GetInt("offset", 0),
			}

			rep, proc := hr.QueryOrganizations(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 获取组织树
	{
		Tool: mcp.NewTool(
			"getOrganizationTree",
			mcp.WithDescription("获取组织树结构"),
			mcp.WithString("rootOrgGuid", mcp.Description("根组织ID，不指定则获取所有顶级组织的树")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			rootOrgGuid := request.GetString("rootOrgGuid", "")

			rep, proc := hr.GetOrganizationTree(rootOrgGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 获取组织详情
	{
		Tool: mcp.NewTool(
			"getOrganization",
			mcp.WithDescription("根据ID获取组织详情"),
			mcp.WithString("orgGuid", mcp.Required(), mcp.Description("组织ID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			orgGuid := request.GetString("orgGuid", "")
			if orgGuid == "" {
				return nil, fmt.Errorf("组织ID不能为空")
			}

			rep, proc := hr.GetOrganizationByID(orgGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 创建组织（增强版）
	{
		Tool: mcp.NewTool(
			"createOrganizationExt",
			mcp.WithDescription("创建组织（增强版）"),
			mcp.WithString("organizationName", mcp.Required(), mcp.Description("组织名称")),
			mcp.WithString("parentGuid", mcp.Description("父组织ID，可选")),
			mcp.WithNumber("organizationType", mcp.Required(), mcp.Description("组织类型：1-公司，2-部门，3-团队")),
			mcp.WithString("description", mcp.Description("组织描述，可选")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			name := request.GetString("organizationName", "")
			if name == "" {
				return nil, fmt.Errorf("组织名称不能为空")
			}

			orgType := request.GetInt("organizationType", 0)
			if orgType <= 0 {
				return nil, fmt.Errorf("无效的组织类型")
			}

			params := hr.CreateOrganizationRequest{
				OrganizationName: name,
				ParentGuid:       request.GetString("parentGuid", ""),
				OrganizationType: orgType,
				Description:      request.GetString("description", ""),
			}

			rep, proc := hr.CreateOrganization(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 更新组织
	{
		Tool: mcp.NewTool(
			"updateOrganization",
			mcp.WithDescription("更新组织信息"),
			mcp.WithString("orgGuid", mcp.Required(), mcp.Description("组织ID")),
			mcp.WithString("organizationName", mcp.Description("组织名称，可选")),
			mcp.WithString("parentGuid", mcp.Description("父组织ID，可选")),
			mcp.WithNumber("organizationType", mcp.Description("组织类型：1-公司，2-部门，3-团队，可选")),
			mcp.WithString("description", mcp.Description("组织描述，可选")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			orgGuid := request.GetString("orgGuid", "")
			if orgGuid == "" {
				return nil, fmt.Errorf("组织ID不能为空")
			}

			params := hr.CreateOrganizationRequest{
				OrganizationName: request.GetString("organizationName", ""),
				ParentGuid:       request.GetString("parentGuid", ""),
				OrganizationType: request.GetInt("organizationType", 0),
				Description:      request.GetString("description", ""),
			}

			rep, proc := hr.UpdateOrganization(orgGuid, params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 删除组织
	{
		Tool: mcp.NewTool(
			"deleteOrganization",
			mcp.WithDescription("删除组织（逻辑删除）"),
			mcp.WithString("orgGuid", mcp.Required(), mcp.Description("组织ID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			orgGuid := request.GetString("orgGuid", "")
			if orgGuid == "" {
				return nil, fmt.Errorf("组织ID不能为空")
			}

			proc := hr.DeleteOrganization(orgGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			return mcp.NewToolResultText("删除成功"), nil
		},
	},
	// 创建岗位
	{
		Tool: mcp.NewTool(
			"createPosition",
			mcp.WithDescription("创建岗位"),
			mcp.WithString("positionName", mcp.Required(), mcp.Description("岗位名称")),
			mcp.WithString("positionCode", mcp.Required(), mcp.Description("岗位代码")),
			mcp.WithString("description", mcp.Description("岗位描述，可选")),
			mcp.WithNumber("level", mcp.Description("岗位级别，可选")),
			mcp.WithNumber("categoryId", mcp.Description("岗位类别ID，可选")),
			mcp.WithString("categoryName", mcp.Description("岗位类别名称，可选")),
			mcp.WithBoolean("isManagement", mcp.Description("是否管理岗位，默认false")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			name := request.GetString("positionName", "")
			if name == "" {
				return nil, fmt.Errorf("岗位名称不能为空")
			}

			code := request.GetString("positionCode", "")
			if code == "" {
				return nil, fmt.Errorf("岗位代码不能为空")
			}

			params := hr.CreatePositionRequest{
				PositionName: name,
				PositionCode: code,
				Description:  request.GetString("description", ""),
				Level:        request.GetInt("level", 0),
				CategoryID:   request.GetInt("categoryId", 0),
				CategoryName: request.GetString("categoryName", ""),
				IsManagement: request.GetBool("isManagement", false),
			}

			rep, proc := hr.CreatePosition(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 查询岗位
	{
		Tool: mcp.NewTool(
			"queryPositions",
			mcp.WithDescription("查询岗位列表"),
			mcp.WithString("query", mcp.Description("搜索关键词，可选")),
			mcp.WithString("positionName", mcp.Description("岗位名称，模糊查询")),
			mcp.WithString("positionCode", mcp.Description("岗位代码，精确查询")),
			mcp.WithNumber("categoryId", mcp.Description("岗位类别ID，筛选")),
			mcp.WithNumber("level", mcp.Description("岗位级别，筛选")),
			mcp.WithBoolean("isManagement", mcp.Description("是否管理岗位，筛选")),
			// mcp.WithNumber("status", mcp.Description("状态：-1-所有，1-启用，0-禁用")),
			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) {
			// 确保至少有一个参数
			query := request.GetString("query", "")

			params := hr.QueryPositionsRequest{
				PositionName: request.GetString("positionName", query), // 如果positionName不存在，使用query作为名称搜索
				PositionCode: request.GetString("positionCode", ""),
				CategoryID:   request.GetInt("categoryId", 0),
				Level:        request.GetInt("level", 0),
				IsManagement: request.GetBool("isManagement", false),
				// Status:       request.GetInt("status", -1),
				Limit:  request.GetInt("limit", 20),
				Offset: request.GetInt("offset", 0),
			}

			rep, proc := hr.QueryPositions(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 获取岗位详情
	{
		Tool: mcp.NewTool(
			"getPosition",
			mcp.WithDescription("获取岗位详情"),
			mcp.WithString("positionGuid", mcp.Required(), mcp.Description("岗位ID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			positionGuid := request.GetString("positionGuid", "")
			if positionGuid == "" {
				return nil, fmt.Errorf("岗位ID不能为空")
			}

			rep, proc := hr.GetPositionByID(positionGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 更新岗位
	{
		Tool: mcp.NewTool(
			"updatePosition",
			mcp.WithDescription("更新岗位信息"),
			mcp.WithString("positionGuid", mcp.Required(), mcp.Description("岗位ID")),
			mcp.WithString("positionName", mcp.Description("岗位名称，可选")),
			mcp.WithString("positionCode", mcp.Description("岗位代码，可选")),
			mcp.WithString("description", mcp.Description("岗位描述，可选")),
			mcp.WithNumber("level", mcp.Description("岗位级别，可选")),
			mcp.WithNumber("categoryId", mcp.Description("岗位类别ID，可选")),
			mcp.WithString("categoryName", mcp.Description("岗位类别名称，可选")),
			mcp.WithBoolean("isManagement", mcp.Description("是否管理岗位，可选")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			positionGuid := request.GetString("positionGuid", "")
			if positionGuid == "" {
				return nil, fmt.Errorf("岗位ID不能为空")
			}

			params := hr.CreatePositionRequest{
				PositionName: request.GetString("positionName", ""),
				PositionCode: request.GetString("positionCode", ""),
				Description:  request.GetString("description", ""),
				Level:        request.GetInt("level", 0),
				CategoryID:   request.GetInt("categoryId", 0),
				CategoryName: request.GetString("categoryName", ""),
				IsManagement: request.GetBool("isManagement", false),
			}

			rep, proc := hr.UpdatePosition(positionGuid, params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 更改岗位状态
	{
		Tool: mcp.NewTool(
			"changePositionStatus",
			mcp.WithDescription("更改岗位状态（启用/禁用）"),
			mcp.WithString("positionGuid", mcp.Required(), mcp.Description("岗位ID")),
			mcp.WithNumber("status", mcp.Required(), mcp.Description("状态：1-启用，0-禁用")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			positionGuid := request.GetString("positionGuid", "")
			if positionGuid == "" {
				return nil, fmt.Errorf("岗位ID不能为空")
			}

			status := request.GetInt("status", -1)
			if status != 0 && status != 1 {
				return nil, fmt.Errorf("无效的状态值，必须为0或1")
			}

			rep, proc := hr.ChangePositionStatus(positionGuid, status)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 删除岗位
	{
		Tool: mcp.NewTool(
			"deletePosition",
			mcp.WithDescription("删除岗位（逻辑删除）"),
			mcp.WithString("positionGuid", mcp.Required(), mcp.Description("岗位ID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			positionGuid := request.GetString("positionGuid", "")
			if positionGuid == "" {
				return nil, fmt.Errorf("岗位ID不能为空")
			}

			proc := hr.DeletePosition(positionGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			return mcp.NewToolResultText("删除成功"), nil
		},
	},
	// 为组织分配岗位
	{
		Tool: mcp.NewTool(
			"assignPositionToOrg",
			mcp.WithDescription("为组织分配岗位"),
			mcp.WithString("organizationGuid", mcp.Required(), mcp.Description("组织ID")),
			mcp.WithString("positionGuid", mcp.Required(), mcp.Description("岗位ID")),
			mcp.WithNumber("headCount", mcp.Description("岗位编制人数，默认1")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			orgGuid := request.GetString("organizationGuid", "")
			if orgGuid == "" {
				return nil, fmt.Errorf("组织ID不能为空")
			}

			positionGuid := request.GetString("positionGuid", "")
			if positionGuid == "" {
				return nil, fmt.Errorf("岗位ID不能为空")
			}

			params := hr.AssignPositionToOrgRequest{
				OrganizationGuid: orgGuid,
				PositionGuid:     positionGuid,
				HeadCount:        request.GetInt("headCount", 1),
			}

			rep, proc := hr.AssignPositionToOrg(params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 更新组织岗位编制人数
	{
		Tool: mcp.NewTool(
			"updateOrgPositionHeadCount",
			mcp.WithDescription("更新组织岗位编制人数"),
			mcp.WithString("relationGuid", mcp.Required(), mcp.Description("组织岗位关系ID")),
			mcp.WithNumber("headCount", mcp.Required(), mcp.Description("岗位编制人数")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			relationGuid := request.GetString("relationGuid", "")
			if relationGuid == "" {
				return nil, fmt.Errorf("组织岗位关系ID不能为空")
			}

			headCount := request.GetInt("headCount", 0)
			if headCount <= 0 {
				return nil, fmt.Errorf("编制人数必须大于0")
			}

			rep, proc := hr.UpdateOrgPositionHeadCount(relationGuid, headCount)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 移除组织岗位
	{
		Tool: mcp.NewTool(
			"removePositionFromOrg",
			mcp.WithDescription("从组织中移除岗位"),
			mcp.WithString("relationGuid", mcp.Required(), mcp.Description("组织岗位关系ID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			relationGuid := request.GetString("relationGuid", "")
			if relationGuid == "" {
				return nil, fmt.Errorf("组织岗位关系ID不能为空")
			}

			proc := hr.RemovePositionFromOrg(relationGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			return mcp.NewToolResultText("移除成功"), nil
		},
	},
	// 查询组织的岗位列表
	{
		Tool: mcp.NewTool(
			"queryPositionsByOrg",
			mcp.WithDescription("查询组织的岗位列表"),
			mcp.WithString("organizationGuid", mcp.Required(), mcp.Description("组织ID")),
			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) {
			orgGuid := request.GetString("organizationGuid", "")
			if orgGuid == "" {
				return nil, fmt.Errorf("组织ID不能为空")
			}

			params := hr.QueryOrgPositionRequest{
				Limit:  request.GetInt("limit", 20),
				Offset: request.GetInt("offset", 0),
			}

			rep, proc := hr.QueryPositionsByOrg(orgGuid, params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 查询拥有指定岗位的组织列表
	{
		Tool: mcp.NewTool(
			"queryOrgsByPosition",
			mcp.WithDescription("查询拥有指定岗位的组织列表"),
			mcp.WithString("positionGuid", mcp.Required(), mcp.Description("岗位ID")),
			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) {
			positionGuid := request.GetString("positionGuid", "")
			if positionGuid == "" {
				return nil, fmt.Errorf("岗位ID不能为空")
			}

			params := hr.QueryOrgPositionRequest{
				Limit:  request.GetInt("limit", 20),
				Offset: request.GetInt("offset", 0),
			}

			rep, proc := hr.QueryOrgsByPosition(positionGuid, params)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
	// 获取组织岗位关系详情
	{
		Tool: mcp.NewTool(
			"getPositionOrgRelation",
			mcp.WithDescription("获取组织岗位关系详情"),
			mcp.WithString("relationGuid", mcp.Required(), mcp.Description("组织岗位关系ID")),
		),
		Handler: func(ctx context.Context, request mcp.CallToolRequest) (*mcp.CallToolResult, error) {
			relationGuid := request.GetString("relationGuid", "")
			if relationGuid == "" {
				return nil, fmt.Errorf("组织岗位关系ID不能为空")
			}

			rep, proc := hr.GetPositionOrgRelation(relationGuid)
			if proc.IsError() {
				return mcp.NewToolResultText(""), proc.Error
			}

			repStr, err := json.Marshal(rep)
			if err != nil {
				return mcp.NewToolResultText(""), err
			}
			return mcp.NewToolResultText(string(repStr)), nil
		},
	},
}