conversion.go

/*
Copyright 2016 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package main

import (
	"fmt"
	"strconv"
	"strings"
	"time"

	"github.com/google/go-github/github"
	"k8s.io/test-infra/velodrome/sql"
)

// NewIssue creates a new (orm) Issue from a github Issue
func NewIssue(gIssue *github.Issue, repository string) (*sql.Issue, error) {
	if gIssue.Number == nil ||
		gIssue.Title == nil ||
		gIssue.User == nil ||
		gIssue.User.Login == nil ||
		gIssue.State == nil ||
		gIssue.Comments == nil ||
		gIssue.CreatedAt == nil ||
		gIssue.UpdatedAt == nil {
		return nil, fmt.Errorf("Issue is missing mandatory field: %+v", gIssue)
	}

	var closedAt *time.Time
	if gIssue.ClosedAt != nil {
		closedAt = gIssue.ClosedAt
	}
	assignees, err := newAssignees(
		*gIssue.Number,
		gIssue.Assignees, repository)
	if err != nil {
		return nil, err
	}
	var body string
	if gIssue.Body != nil {
		body = *gIssue.Body
	}
	isPR := (gIssue.PullRequestLinks != nil && gIssue.PullRequestLinks.URL != nil)
	labels, err := newLabels(
		*gIssue.Number, gIssue.Labels, repository)
	if err != nil {
		return nil, err
	}

	return &sql.Issue{
		ID:             strconv.Itoa(*gIssue.Number),
		Labels:         labels,
		Title:          *gIssue.Title,
		Body:           body,
		User:           *gIssue.User.Login,
		Assignees:      assignees,
		State:          *gIssue.State,
		Comments:       *gIssue.Comments,
		IsPR:           isPR,
		IssueClosedAt:  closedAt,
		IssueCreatedAt: *gIssue.CreatedAt,
		IssueUpdatedAt: *gIssue.UpdatedAt,
		Repository:     strings.ToLower(repository),
	}, nil
}

// NewIssueEvent creates a new (orm) Issue from a github Issue
func NewIssueEvent(gIssueEvent *github.IssueEvent, issueID int, repository string) (*sql.IssueEvent, error) {
	if gIssueEvent.ID == nil ||
		gIssueEvent.Event == nil ||
		gIssueEvent.CreatedAt == nil {
		return nil, fmt.Errorf("IssueEvent is missing mandatory field: %+v", gIssueEvent)
	}

	var label *string
	if gIssueEvent.Label != nil {
		label = gIssueEvent.Label.Name
	}
	var assignee *string
	if gIssueEvent.Assignee != nil {
		assignee = gIssueEvent.Assignee.Login
	}
	var actor *string
	if gIssueEvent.Actor != nil {
		actor = gIssueEvent.Actor.Login
	}

	return &sql.IssueEvent{
		ID:             itoa(*gIssueEvent.ID),
		Label:          label,
		Event:          *gIssueEvent.Event,
		EventCreatedAt: *gIssueEvent.CreatedAt,
		IssueID:        strconv.Itoa(issueID),
		Assignee:       assignee,
		Actor:          actor,
		Repository:     strings.ToLower(repository),
	}, nil
}

// newLabels creates a new Label for each label in the issue
func newLabels(issueID int, gLabels []github.Label, repository string) ([]sql.Label, error) {
	labels := []sql.Label{}
	repository = strings.ToLower(repository)

	for _, label := range gLabels {
		if label.Name == nil {
			return nil, fmt.Errorf("Label is missing name field")
		}
		labels = append(labels, sql.Label{
			IssueID:    strconv.Itoa(issueID),
			Name:       *label.Name,
			Repository: repository,
		})
	}

	return labels, nil
}

// newAssignees creates a new Label for each label in the issue
func newAssignees(issueID int, gAssignees []*github.User, repository string) ([]sql.Assignee, error) {
	assignees := []sql.Assignee{}
	repository = strings.ToLower(repository)

	for _, assignee := range gAssignees {
		if assignee != nil && assignee.Login == nil {
			return nil, fmt.Errorf("Assignee is missing Login field")
		}
		assignees = append(assignees, sql.Assignee{
			IssueID:    strconv.Itoa(issueID),
			Name:       *assignee.Login,
			Repository: repository,
		})
	}

	return assignees, nil
}

func itoa(n int64) string {
	return strconv.FormatInt(n, 10)
}

// NewIssueComment creates a Comment from a github.IssueComment
func NewIssueComment(issueID int, gComment *github.IssueComment, repository string) (*sql.Comment, error) {
	if gComment.ID == nil ||
		gComment.Body == nil ||
		gComment.CreatedAt == nil ||
		gComment.UpdatedAt == nil {
		return nil, fmt.Errorf("IssueComment is missing mandatory field: %s", gComment)
	}

	var login string
	if gComment.User != nil && gComment.User.Login != nil {
		login = *gComment.User.Login
	}

	return &sql.Comment{
		ID:               itoa(*gComment.ID),
		IssueID:          strconv.Itoa(issueID),
		Body:             *gComment.Body,
		User:             login,
		CommentCreatedAt: *gComment.CreatedAt,
		CommentUpdatedAt: *gComment.UpdatedAt,
		PullRequest:      false,
		Repository:       strings.ToLower(repository),
	}, nil
}

// NewPullComment creates a Comment from a github.PullRequestComment
func NewPullComment(issueID int, gComment *github.PullRequestComment, repository string) (*sql.Comment, error) {
	if gComment.ID == nil ||
		gComment.Body == nil ||
		gComment.CreatedAt == nil ||
		gComment.UpdatedAt == nil {
		return nil, fmt.Errorf("PullComment is missing mandatory field: %s", gComment)
	}

	var login string
	if gComment.User != nil && gComment.User.Login != nil {
		login = *gComment.User.Login
	}
	return &sql.Comment{
		ID:               itoa(*gComment.ID),
		IssueID:          strconv.Itoa(issueID),
		Body:             *gComment.Body,
		User:             login,
		CommentCreatedAt: *gComment.CreatedAt,
		CommentUpdatedAt: *gComment.UpdatedAt,
		PullRequest:      true,
		Repository:       strings.ToLower(repository),
	}, nil
}