package services

import (
	"fmt"
	"server/models"
	"time"
)

// ListOATasks 服务层：分页查询任务
func ListOATasks(tenantId int, keyword, status, priority string, page, pageSize int) (tasks []*models.Task, total int64, err error) {
	return models.ListTasks(tenantId, keyword, status, priority, page, pageSize)
}

// GetOATaskById 服务层：获取任务详情
func GetOATaskById(id int) (*models.Task, error) {
	return models.GetTaskById(id)
}

// CreateOATask 服务层：创建任务
func CreateOATask(t *models.Task, tenantId int, username string) error {
	// 填充租户
	if t.TenantId == 0 && tenantId > 0 {
		t.TenantId = tenantId
	}
	// 默认状态与优先级
	if t.TaskStatus == "" {
		t.TaskStatus = ""
	}
	if t.Priority == "" {
		t.Priority = ""
	}
	// 任务编号
	if t.TaskNo == "" {
		t.TaskNo = genTaskNo(t.TenantId)
	}
	// 创建人与操作人
	if t.CreatorName == "" && username != "" {
		t.CreatorName = username
	}
	if t.OperatorName == "" && username != "" {
		t.OperatorName = username
	}
	return models.CreateTask(t)
}

// UpdateOATask 服务层：更新任务
func UpdateOATask(t *models.Task, username string, cols ...string) error {
	if username != "" {
		t.OperatorName = username
	}
	return models.UpdateTask(t, cols...)
}

// DeleteOATask 服务层：软删除任务
func DeleteOATask(id int, operatorName string, operatorId int) error {
	// 读取当前任务
	t, err := models.GetTaskById(id)
	if err != nil {
		return err
	}
	now := time.Now()
	t.DeletedTime = &now
	t.OperatorName = operatorName
	t.OperatorId = operatorId
	return models.UpdateTask(t, "deleted_time", "operator_name", "operator_id")
}

// 生成任务编号：TASK{tenantId}{YYYYMMDDHHMMSS}
func genTaskNo(tenantId int) string {
	return fmt.Sprintf("TASK%d%s", tenantId, time.Now().Format("20060102150405"))
}