tuna-timer/tuna-timer-api

package commands

import (
    "context"

    "fmt"
    "github.com/cleverua/tuna-timer-api/data"
    "github.com/cleverua/tuna-timer-api/models"
    "github.com/cleverua/tuna-timer-api/themes"
    "github.com/cleverua/tuna-timer-api/utils"
    "gopkg.in/mgo.v2"
    "time"
)

//Start - handles the '/timer stop` command received from Slack
type Start struct {
    session      *mgo.Session
    teamService  *data.TeamService
    timerService *data.TimerService
    userService  *data.UserService
    passService  *data.PassService
    report       *models.StartCommandReport
    ctx          context.Context
    theme        themes.SlackMessageTheme
}

func NewStart(ctx context.Context) *Start {
    session := utils.GetMongoSessionFromContext(ctx)

    start := &Start{
        session:      session,
        teamService:  data.NewTeamService(session),
        timerService: data.NewTimerService(session),
        userService:  data.NewUserService(session),
        passService:  data.NewPassService(session),
        report:       &models.StartCommandReport{},
        ctx:          ctx,
        theme:        utils.GetThemeFromContext(ctx).(themes.SlackMessageTheme),
    }

    return start
}

// cases:
// * Has nothing to do if requested task is already started
// * Successfully started a new timer while there were no existing running
// * Successfully started a new timer and stopped the previous one
// * Timer is already in progress
// * The started one has the same taskName thus the task is actually resumed
// * Any other errors

// Handle - SlackCustomCommandHandler interface
func (c *Start) Handle(ctx context.Context, slackCommand models.SlackCustomCommand) *ResponseToSlack {

    if slackCommand.Text == "" {
        return c.errorResponse(
            fmt.Sprintf("Task name not provided! The correct command would look like: \n>`%s start My super exciting task`", slackCommand.Command),
        )
    }

    team, project, err := c.teamService.EnsureTeamSetUp(&slackCommand)
    if err != nil {
        // todo: format a decent Slack error message so user knows what's wrong and how to solve the issue
    }

    teamUser, err := c.userService.EnsureUser(team, slackCommand.UserID)
    if err != nil {
        // todo: format a decent Slack error message so user knows what's wrong and how to solve the issue
    }

    pass, err := c.passService.EnsurePass(team, teamUser, project)
    if err != nil {
        // todo: format a decent Slack error message so user knows what's wrong and how to solve the issue
    }

    c.report.Team = team
    c.report.Project = project
    c.report.TeamUser = teamUser
    c.report.Pass = pass

    timerToStop, err := c.timerService.GetActiveTimer(team.ID.Hex(), teamUser.ID.Hex())
    if err != nil {
        // todo: format a decent Slack error message so user knows what's wrong and how to solve the issue
    }

    if timerToStop != nil {
        if timerToStop.TaskName == slackCommand.Text && timerToStop.ProjectID == project.ID.Hex() {
            c.report.AlreadyStartedTimer = timerToStop
            c.report.AlreadyStartedTimerTotalForToday = c.timerService.TotalMinutesForTaskToday(timerToStop)
        } else {
            c.timerService.StopTimer(timerToStop)
            c.report.StoppedTimer = timerToStop
            c.report.StoppedTaskTotalForToday = c.timerService.TotalMinutesForTaskToday(timerToStop)
        }
    }
    if c.report.AlreadyStartedTimer == nil {
        startedTimer, err := c.timerService.StartTimer(team.ID.Hex(), project, teamUser, slackCommand.Text)
        if err != nil {
            // todo: format a decent Slack error message so user knows what's wrong and how to solve the issue
        }
        c.report.StartedTimer = startedTimer
        c.report.StartedTaskTotalForToday = c.timerService.TotalMinutesForTaskToday(c.report.StartedTimer)
    }

    day := time.Now().Add(time.Duration(teamUser.SlackUserInfo.TZOffset) * time.Second)
    c.report.UserTotalForToday = c.timerService.TotalCompletedMinutesForDay(day.Year(), day.Month(), day.Day(), teamUser)

    return c.response()
}

func (c *Start) response() *ResponseToSlack {
    return &ResponseToSlack{
        Body: []byte(c.theme.FormatStartCommand(c.report)),
    }
}

func (c *Start) errorResponse(errorMessage string) *ResponseToSlack {
    return &ResponseToSlack{
        Body: []byte(c.theme.FormatError(errorMessage)),
    }
}