128 lines
3.0 KiB
Go
128 lines
3.0 KiB
Go
package tasks
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import (
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"log"
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"time"
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"github.com/robfig/cron"
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g "github.com/xanzy/go-gitlab"
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"go.dev.pztrn.name/periodicator/internal/gitlab"
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)
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// BaseTask is a base task structure.
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type BaseTask struct {
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client *gitlab.Client
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projectID int
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title string
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body string
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tags []string
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executionStartTimestamp time.Time
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cron string
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dueIn time.Duration
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}
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func (b *BaseTask) checkIfOpenedTaskExists(issues []*g.Issue) bool {
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b.log("Checking if opened task already exists...")
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var foundAndNotClosed bool
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for _, issue := range issues {
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if issue.Title == b.title && issue.ClosedAt == nil {
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foundAndNotClosed = true
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break
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}
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}
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return foundAndNotClosed
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}
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func (b *BaseTask) log(message string) {
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log.Println("Task '" + b.title + "': " + message)
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}
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// Run executes task procedure.
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func (b *BaseTask) Run() {
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// Get similar tasks.
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issues, err := b.client.GetIssuesByTitle(b.projectID, b.title)
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if err != nil {
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b.log("Error while getting issues from Gitlab: " + err.Error())
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return
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}
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// Check if we have opened task. We should not create another task until already
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// created task is closed.
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if b.checkIfOpenedTaskExists(issues) {
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b.log("Found already existing task that isn't closed, won't create new task")
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return
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}
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b.log("No still opened tasks found, checking if we should create new one...")
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// Get latest task creation timestamp from Gitlab.
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lastTaskCreationTS := b.executionStartTimestamp
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for _, issue := range issues {
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if issue.ClosedAt != nil && issue.CreatedAt.After(lastTaskCreationTS) {
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lastTaskCreationTS = *issue.CreatedAt
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}
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}
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b.log("Last task creation timestamp: " + lastTaskCreationTS.String())
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// Set up cron job parser.
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cp := cron.NewParser(cron.Minute | cron.Hour | cron.Dom | cron.Month | cron.Dow)
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schedule, err := cp.Parse(b.cron)
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if err != nil {
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b.log("Failed to parse cron string: " + err.Error())
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return
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}
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// Figure out next task creation and deadline timestamps.
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nextCreationTS := schedule.Next(lastTaskCreationTS)
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// Check if task should be created and create if so.
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if nextCreationTS.Before(time.Now()) {
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// Deadlines should be calculated until first one will appear AFTER today.
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nextDeadlineTSAssumed := nextCreationTS.Add(b.dueIn)
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var nextDeadlineTS g.ISOTime
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for {
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if nextDeadlineTSAssumed.After(time.Now()) {
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nextDeadlineTS = g.ISOTime(nextDeadlineTSAssumed)
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break
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}
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nextDeadlineTSAssumed = nextDeadlineTSAssumed.Add(b.dueIn)
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}
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b.log("Found no opened tasks and task should be created, doing so. Task deadline: " + nextDeadlineTS.String())
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// nolint:exhaustivestruct
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err := b.client.CreateIssue(b.projectID, &g.CreateIssueOptions{
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Title: &b.title,
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Description: &b.body,
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Labels: b.tags,
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DueDate: &nextDeadlineTS,
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})
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if err != nil {
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b.log("Failed to create task: " + err.Error())
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return
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}
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} else {
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b.log("Next task creation in future (" + nextCreationTS.String() + "), skipping for now")
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return
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}
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}
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