| 1 | package main
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| 2 |
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| 3 | import (
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| 4 | "database/sql"
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| 5 | "time"
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| 6 | )
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| 7 |
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| 8 | type TaskRunner struct {
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| 9 | count int
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| 10 | taskID int
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| 11 | taskMessage string
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| 12 | nPomodoros int
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| 13 | origDuration time.Duration
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| 14 | state State
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| 15 | store *Store
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| 16 | started time.Time
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| 17 | pause chan bool
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| 18 | toggle chan bool
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| 19 | notifier Notifier
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| 20 | duration time.Duration
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| 21 | }
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| 22 |
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| 23 | func NewTaskRunner(task *Task, store *Store, notifier Notifier) (*TaskRunner, error) {
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| 24 | tr := &TaskRunner{
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| 25 | taskID: task.ID,
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| 26 | taskMessage: task.Message,
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| 27 | nPomodoros: task.NPomodoros,
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| 28 | origDuration: task.Duration,
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| 29 | store: store,
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| 30 | state: State(0),
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| 31 | pause: make(chan bool),
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| 32 | toggle: make(chan bool),
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| 33 | notifier: notifier,
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| 34 | duration: task.Duration,
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| 35 | }
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| 36 | return tr, nil
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| 37 | }
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| 38 |
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| 39 | func (t *TaskRunner) Start() {
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| 40 | go t.run()
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| 41 | }
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| 42 |
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| 43 | func (t *TaskRunner) TimeRemaining() time.Duration {
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| 44 | return (t.duration - time.Since(t.started)).Truncate(time.Second)
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| 45 | }
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| 46 |
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| 47 | func (t *TaskRunner) run() error {
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| 48 | for t.count < t.nPomodoros {
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| 49 | // Create a new pomodoro where we
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| 50 | // track the start / end time of
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| 51 | // of this session.
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| 52 | pomodoro := &Pomodoro{}
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| 53 | // Start this pomodoro
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| 54 | pomodoro.Start = time.Now()
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| 55 | // Set state to RUNNING
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| 56 | t.state = RUNNING
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| 57 | // Create a new timer
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| 58 | timer := time.NewTimer(t.duration)
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| 59 | // Record our started time
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| 60 | t.started = pomodoro.Start
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| 61 | loop:
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| 62 | select {
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| 63 | case <-timer.C:
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| 64 | t.state = BREAKING
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| 65 | t.count++
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| 66 | case <-t.toggle:
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| 67 | // Catch any toggles when we
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| 68 | // are not expecting them
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| 69 | goto loop
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| 70 | case <-t.pause:
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| 71 | timer.Stop()
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| 72 | // Record the remaining time of the current pomodoro
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| 73 | remaining := t.TimeRemaining()
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| 74 | // Change state to PAUSED
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| 75 | t.state = PAUSED
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| 76 | // Wait for the user to press [p]
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| 77 | <-t.pause
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| 78 | // Resume the timer with previous
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| 79 | // remaining time
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| 80 | timer.Reset(remaining)
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| 81 | // Change duration
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| 82 | t.started = time.Now()
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| 83 | t.duration = remaining
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| 84 | // Restore state to RUNNING
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| 85 | t.state = RUNNING
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| 86 | goto loop
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| 87 | }
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| 88 | pomodoro.End = time.Now()
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| 89 | err := t.store.With(func(tx *sql.Tx) error {
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| 90 | return t.store.CreatePomodoro(tx, t.taskID, *pomodoro)
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| 91 | })
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| 92 | if err != nil {
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| 93 | return err
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| 94 | }
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| 95 | // All pomodoros completed
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| 96 | if t.count == t.nPomodoros {
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| 97 | break
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| 98 | }
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| 99 |
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| 100 | t.notifier.Notify("Pomo", "It is time to take a break!")
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| 101 | // Reset the duration incase it
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| 102 | // was paused.
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| 103 | t.duration = t.origDuration
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| 104 | // User concludes the break
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| 105 | <-t.toggle
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| 106 |
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| 107 | }
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| 108 | t.notifier.Notify("Pomo", "Pomo session has completed!")
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| 109 | t.state = COMPLETE
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| 110 | return nil
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| 111 | }
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| 112 |
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| 113 | func (t *TaskRunner) Toggle() {
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| 114 | t.toggle <- true
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| 115 | }
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| 116 |
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| 117 | func (t *TaskRunner) Pause() {
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| 118 | t.pause <- true
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| 119 | }
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| 120 |
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| 121 | func (t *TaskRunner) Status() *Status {
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| 122 | return &Status{
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| 123 | State: t.state,
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| 124 | Count: t.count,
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| 125 | NPomodoros: t.nPomodoros,
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| 126 | Remaining: t.TimeRemaining(),
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| 127 | }
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| 128 | }
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