package service

import (
	"context"
	"errors"
	"strings"

	"gitea.com/bitwsd/core/common/log"
	"gitea.com/bitwsd/document_ai/internal/model/task"
	"gitea.com/bitwsd/document_ai/internal/storage/dao"
	"gorm.io/gorm"
)

type TaskService struct {
	db *gorm.DB
}

func NewTaskService() *TaskService {
	return &TaskService{dao.DB}
}

func (svc *TaskService) EvaluateTask(ctx context.Context, req *task.EvaluateTaskRequest) error {
	taskDao := dao.NewRecognitionTaskDao()
	task, err := taskDao.GetByTaskNo(svc.db.WithContext(ctx), req.TaskNo)
	if err != nil {
		log.Error(ctx, "func", "EvaluateTask", "msg", "get task by task no failed", "error", err)
		return err
	}

	if task == nil {
		log.Error(ctx, "func", "EvaluateTask", "msg", "task not found")
		return errors.New("task not found")
	}
	if task.Status != dao.TaskStatusCompleted {
		log.Error(ctx, "func", "EvaluateTask", "msg", "task not finished")
		return errors.New("task not finished")
	}

	evaluateTaskDao := dao.NewEvaluateTaskDao()
	evaluateTask := &dao.EvaluateTask{
		TaskID:    task.ID,
		Satisfied: req.Satisfied,
		Feedback:  req.Feedback,
		Comment:   strings.Join(req.Suggestion, ","),
	}
	err = evaluateTaskDao.Create(svc.db.WithContext(ctx), evaluateTask)
	if err != nil {
		log.Error(ctx, "func", "EvaluateTask", "msg", "create evaluate task failed", "error", err)
		return err
	}

	return nil
}

func (svc *TaskService) GetTaskList(ctx context.Context, req *task.TaskListRequest) (*task.TaskListResponse, error) {
	taskDao := dao.NewRecognitionTaskDao()
	tasks, err := taskDao.GetTaskList(svc.db.WithContext(ctx), dao.TaskType(req.TaskType), req.Page, req.PageSize)
	if err != nil {
		log.Error(ctx, "func", "GetTaskList", "msg", "get task list failed", "error", err)
		return nil, err
	}
	resp := &task.TaskListResponse{
		TaskList: make([]*task.TaskListDTO, 0, len(tasks)),
		HasMore:  false,
		NextPage: 0,
	}
	for _, item := range tasks {
		resp.TaskList = append(resp.TaskList, &task.TaskListDTO{
			TaskID:    item.TaskUUID,
			FileName:  item.FileName,
			Status:    item.Status.String(),
			Path:      item.FileURL,
			TaskType:  item.TaskType.String(),
			CreatedAt: item.CreatedAt.Format("2006-01-02 15:04:05"),
		})
	}
	return resp, nil
}