package controllers

import (
	"server/models"
	"server/services"
	"time"

	"github.com/beego/beego/v2/client/orm"
	beego "github.com/beego/beego/v2/server/web"
)

// DashboardController 仪表盘控制器
type DashboardController struct {
	beego.Controller
}

// GetPlatformStats 获取平台统计数据（平台用户使用）
// @router /api/dashboard/platform-stats [get]
func (c *DashboardController) GetPlatformStats() {
	// 获取租户总数
	tenants, err := models.GetTenantList()
	tenantCount := int64(0)
	if err == nil {
		tenantCount = int64(len(tenants))
	}

	// 获取知识库总数及增长率（所有租户）
	knowledgeCount, currentMonthKnowledge, lastMonthKnowledge, knowledgeGrowthRate, _ := models.GetKnowledgeCountWithGrowth(0)

	// 获取用户总数（所有租户的用户，使用简单查询）
	o := orm.NewOrm()
	var userCount int64
	o.Raw("SELECT COUNT(*) FROM yz_users WHERE delete_time IS NULL").QueryRow(&userCount)

	// 获取员工总数（所有租户的员工）
	var employeeCount int64
	o.Raw("SELECT COUNT(*) FROM yz_tenant_employees WHERE delete_time IS NULL").QueryRow(&employeeCount)

	c.Data["json"] = map[string]interface{}{
		"code":    0,
		"message": "success",
		"data": map[string]interface{}{
			"tenantCount": tenantCount,
			"userCount":   userCount,
			"knowledgeCount": map[string]interface{}{
				"total":        knowledgeCount,
				"currentMonth": currentMonthKnowledge,
				"lastMonth":    lastMonthKnowledge,
				"growthRate":   knowledgeGrowthRate,
			},
			"employeeCount": employeeCount,
		},
	}
	c.ServeJSON()
}

// GetTenantStats 获取租户统计数据（租户员工使用）
// @router /api/dashboard/tenant-stats [get]
func (c *DashboardController) GetTenantStats() {
	// 获取租户ID（从JWT token中获取）
	tenantId := 0
	if tenantIdVal, ok := c.Ctx.Input.GetData("tenantId").(int); ok && tenantIdVal > 0 {
		if userType, ok := c.Ctx.Input.GetData("userType").(string); ok && userType == "employee" {
			tenantId = tenantIdVal
		}
	}

	if tenantId <= 0 {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "无法获取租户信息",
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	// 获取知识库数量及增长率
	knowledgeCount, currentMonthKnowledge, lastMonthKnowledge, knowledgeGrowthRate, _ := models.GetKnowledgeCountWithGrowth(tenantId)

	// 获取员工数量（简单查询）
	o := orm.NewOrm()
	var employeeCount int64
	o.Raw("SELECT COUNT(*) FROM yz_tenant_employees WHERE tenant_id = ? AND delete_time IS NULL", tenantId).QueryRow(&employeeCount)

	// 获取部门数量
	var departmentCount int64
	o.Raw("SELECT COUNT(*) FROM yz_tenant_departments WHERE tenant_id = ? AND delete_time IS NULL", tenantId).QueryRow(&departmentCount)

	// 获取职位数量
	var positionCount int64
	o.Raw("SELECT COUNT(*) FROM yz_tenant_positions WHERE tenant_id = ? AND delete_time IS NULL", tenantId).QueryRow(&positionCount)

	c.Data["json"] = map[string]interface{}{
		"code":    0,
		"message": "success",
		"data": map[string]interface{}{
			"knowledgeCount": map[string]interface{}{
				"total":        knowledgeCount,
				"currentMonth": currentMonthKnowledge,
				"lastMonth":    lastMonthKnowledge,
				"growthRate":   knowledgeGrowthRate,
			},
			"employeeCount":   employeeCount,
			"departmentCount": departmentCount,
			"positionCount":   positionCount,
		},
	}
	c.ServeJSON()
}

// GetUserActivityLogs 获取当前用户的最新活动日志（包含操作日志和登录日志）
// @router /api/dashboard/user-activity-logs [get]
func (c *DashboardController) GetUserActivityLogs() {
	// 获取当前用户ID和租户ID
	userId := 0
	if userIdVal, ok := c.Ctx.Input.GetData("userId").(int); ok {
		userId = userIdVal
	}

	tenantId := 0
	if tenantIdVal, ok := c.Ctx.Input.GetData("tenantId").(int); ok {
		tenantId = tenantIdVal
	}

	if userId <= 0 {
		c.Data["json"] = map[string]interface{}{
			"code":    1,
			"message": "无法获取用户信息",
			"data":    nil,
		}
		c.ServeJSON()
		return
	}

	// 获取查询参数
	pageNum, _ := c.GetInt("page_num", 1)
	pageSize, _ := c.GetInt("page_size", 10)
	logType := c.GetString("type")        // "operation" 或 "access" 或 "all"
	operation := c.GetString("operation") // 操作类型过滤

	if logType == "" {
		logType = "all"
	}

	type ActivityLog struct {
		Id          int64     `json:"id"`
		Type        string    `json:"type"`
		Username    string    `json:"username"`
		Module      string    `json:"module"`
		Operation   string    `json:"operation"`
		Action      string    `json:"action"`
		Description string    `json:"description"`
		Timestamp   time.Time `json:"timestamp"`
	}

	var logs []ActivityLog

	// 获取操作日志
	if logType == "operation" || logType == "all" {
		operationLogs, _, err := services.GetOperationLogs(tenantId, userId, "", operation, nil, nil, pageNum, pageSize)
		if err == nil && operationLogs != nil {
			for _, log := range operationLogs {
				logs = append(logs, ActivityLog{
					Id:          log.Id,
					Type:        "operation",
					Username:    log.Username,
					Module:      log.Module,
					Operation:   log.Operation,
					Action:      log.Operation,
					Description: log.Description,
					Timestamp:   log.CreateTime,
				})
			}
		}
	}

	// 获取访问/登录日志
	if logType == "access" || logType == "all" {
		accessLogs, _, err := services.GetAccessLogs(tenantId, userId, "", "", nil, nil, pageNum, pageSize)
		if err == nil && accessLogs != nil {
			for _, log := range accessLogs {
				logs = append(logs, ActivityLog{
					Id:          log.Id,
					Type:        "access",
					Username:    log.Username,
					Module:      log.Module,
					Operation:   log.RequestMethod,
					Action:      "访问",
					Description: "访问 " + log.Module,
					Timestamp:   log.CreateTime,
				})
			}
		}
	}

	// 按时间戳排序（最新的在前）
	if len(logs) > pageSize {
		logs = logs[:pageSize]
	}

	c.Data["json"] = map[string]interface{}{
		"code":    0,
		"message": "success",
		"data": map[string]interface{}{
			"logs":  logs,
			"total": len(logs),
		},
	}
	c.ServeJSON()
}