1// Copyright 2013 The go-github AUTHORS. All rights reserved.
2//
3// Use of this source code is governed by a BSD-style
4// license that can be found in the LICENSE file.
5
6package github
7
8import (
9	"context"
10	"fmt"
11	"time"
12)
13
14// IssuesService handles communication with the issue related
15// methods of the GitHub API.
16//
17// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/issues/
18type IssuesService service
19
20// Issue represents a GitHub issue on a repository.
21//
22// Note: As far as the GitHub API is concerned, every pull request is an issue,
23// but not every issue is a pull request. Some endpoints, events, and webhooks
24// may also return pull requests via this struct. If PullRequestLinks is nil,
25// this is an issue, and if PullRequestLinks is not nil, this is a pull request.
26// The IsPullRequest helper method can be used to check that.
27type Issue struct {
28	ID                *int64            `json:"id,omitempty"`
29	Number            *int              `json:"number,omitempty"`
30	State             *string           `json:"state,omitempty"`
31	Locked            *bool             `json:"locked,omitempty"`
32	Title             *string           `json:"title,omitempty"`
33	Body              *string           `json:"body,omitempty"`
34	AuthorAssociation *string           `json:"author_association,omitempty"`
35	User              *User             `json:"user,omitempty"`
36	Labels            []*Label          `json:"labels,omitempty"`
37	Assignee          *User             `json:"assignee,omitempty"`
38	Comments          *int              `json:"comments,omitempty"`
39	ClosedAt          *time.Time        `json:"closed_at,omitempty"`
40	CreatedAt         *time.Time        `json:"created_at,omitempty"`
41	UpdatedAt         *time.Time        `json:"updated_at,omitempty"`
42	ClosedBy          *User             `json:"closed_by,omitempty"`
43	URL               *string           `json:"url,omitempty"`
44	HTMLURL           *string           `json:"html_url,omitempty"`
45	CommentsURL       *string           `json:"comments_url,omitempty"`
46	EventsURL         *string           `json:"events_url,omitempty"`
47	LabelsURL         *string           `json:"labels_url,omitempty"`
48	RepositoryURL     *string           `json:"repository_url,omitempty"`
49	Milestone         *Milestone        `json:"milestone,omitempty"`
50	PullRequestLinks  *PullRequestLinks `json:"pull_request,omitempty"`
51	Repository        *Repository       `json:"repository,omitempty"`
52	Reactions         *Reactions        `json:"reactions,omitempty"`
53	Assignees         []*User           `json:"assignees,omitempty"`
54	NodeID            *string           `json:"node_id,omitempty"`
55
56	// TextMatches is only populated from search results that request text matches
57	// See: search.go and https://docs.github.com/en/free-pro-team@latest/rest/reference/search/#text-match-metadata
58	TextMatches []*TextMatch `json:"text_matches,omitempty"`
59
60	// ActiveLockReason is populated only when LockReason is provided while locking the issue.
61	// Possible values are: "off-topic", "too heated", "resolved", and "spam".
62	ActiveLockReason *string `json:"active_lock_reason,omitempty"`
63}
64
65func (i Issue) String() string {
66	return Stringify(i)
67}
68
69// IsPullRequest reports whether the issue is also a pull request. It uses the
70// method recommended by GitHub's API documentation, which is to check whether
71// PullRequestLinks is non-nil.
72func (i Issue) IsPullRequest() bool {
73	return i.PullRequestLinks != nil
74}
75
76// IssueRequest represents a request to create/edit an issue.
77// It is separate from Issue above because otherwise Labels
78// and Assignee fail to serialize to the correct JSON.
79type IssueRequest struct {
80	Title     *string   `json:"title,omitempty"`
81	Body      *string   `json:"body,omitempty"`
82	Labels    *[]string `json:"labels,omitempty"`
83	Assignee  *string   `json:"assignee,omitempty"`
84	State     *string   `json:"state,omitempty"`
85	Milestone *int      `json:"milestone,omitempty"`
86	Assignees *[]string `json:"assignees,omitempty"`
87}
88
89// IssueListOptions specifies the optional parameters to the IssuesService.List
90// and IssuesService.ListByOrg methods.
91type IssueListOptions struct {
92	// Filter specifies which issues to list. Possible values are: assigned,
93	// created, mentioned, subscribed, all. Default is "assigned".
94	Filter string `url:"filter,omitempty"`
95
96	// State filters issues based on their state. Possible values are: open,
97	// closed, all. Default is "open".
98	State string `url:"state,omitempty"`
99
100	// Labels filters issues based on their label.
101	Labels []string `url:"labels,comma,omitempty"`
102
103	// Sort specifies how to sort issues. Possible values are: created, updated,
104	// and comments. Default value is "created".
105	Sort string `url:"sort,omitempty"`
106
107	// Direction in which to sort issues. Possible values are: asc, desc.
108	// Default is "desc".
109	Direction string `url:"direction,omitempty"`
110
111	// Since filters issues by time.
112	Since time.Time `url:"since,omitempty"`
113
114	ListOptions
115}
116
117// PullRequestLinks object is added to the Issue object when it's an issue included
118// in the IssueCommentEvent webhook payload, if the webhook is fired by a comment on a PR.
119type PullRequestLinks struct {
120	URL      *string `json:"url,omitempty"`
121	HTMLURL  *string `json:"html_url,omitempty"`
122	DiffURL  *string `json:"diff_url,omitempty"`
123	PatchURL *string `json:"patch_url,omitempty"`
124}
125
126// List the issues for the authenticated user. If all is true, list issues
127// across all the user's visible repositories including owned, member, and
128// organization repositories; if false, list only owned and member
129// repositories.
130//
131// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/issues/#list-user-account-issues-assigned-to-the-authenticated-user
132// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/issues/#list-issues-assigned-to-the-authenticated-user
133func (s *IssuesService) List(ctx context.Context, all bool, opts *IssueListOptions) ([]*Issue, *Response, error) {
134	var u string
135	if all {
136		u = "issues"
137	} else {
138		u = "user/issues"
139	}
140	return s.listIssues(ctx, u, opts)
141}
142
143// ListByOrg fetches the issues in the specified organization for the
144// authenticated user.
145//
146// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/issues/#list-organization-issues-assigned-to-the-authenticated-user
147func (s *IssuesService) ListByOrg(ctx context.Context, org string, opts *IssueListOptions) ([]*Issue, *Response, error) {
148	u := fmt.Sprintf("orgs/%v/issues", org)
149	return s.listIssues(ctx, u, opts)
150}
151
152func (s *IssuesService) listIssues(ctx context.Context, u string, opts *IssueListOptions) ([]*Issue, *Response, error) {
153	u, err := addOptions(u, opts)
154	if err != nil {
155		return nil, nil, err
156	}
157
158	req, err := s.client.NewRequest("GET", u, nil)
159	if err != nil {
160		return nil, nil, err
161	}
162
163	// TODO: remove custom Accept header when this API fully launch.
164	req.Header.Set("Accept", mediaTypeReactionsPreview)
165
166	var issues []*Issue
167	resp, err := s.client.Do(ctx, req, &issues)
168	if err != nil {
169		return nil, resp, err
170	}
171
172	return issues, resp, nil
173}
174
175// IssueListByRepoOptions specifies the optional parameters to the
176// IssuesService.ListByRepo method.
177type IssueListByRepoOptions struct {
178	// Milestone limits issues for the specified milestone. Possible values are
179	// a milestone number, "none" for issues with no milestone, "*" for issues
180	// with any milestone.
181	Milestone string `url:"milestone,omitempty"`
182
183	// State filters issues based on their state. Possible values are: open,
184	// closed, all. Default is "open".
185	State string `url:"state,omitempty"`
186
187	// Assignee filters issues based on their assignee. Possible values are a
188	// user name, "none" for issues that are not assigned, "*" for issues with
189	// any assigned user.
190	Assignee string `url:"assignee,omitempty"`
191
192	// Creator filters issues based on their creator.
193	Creator string `url:"creator,omitempty"`
194
195	// Mentioned filters issues to those mentioned a specific user.
196	Mentioned string `url:"mentioned,omitempty"`
197
198	// Labels filters issues based on their label.
199	Labels []string `url:"labels,omitempty,comma"`
200
201	// Sort specifies how to sort issues. Possible values are: created, updated,
202	// and comments. Default value is "created".
203	Sort string `url:"sort,omitempty"`
204
205	// Direction in which to sort issues. Possible values are: asc, desc.
206	// Default is "desc".
207	Direction string `url:"direction,omitempty"`
208
209	// Since filters issues by time.
210	Since time.Time `url:"since,omitempty"`
211
212	ListOptions
213}
214
215// ListByRepo lists the issues for the specified repository.
216//
217// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/issues/#list-repository-issues
218func (s *IssuesService) ListByRepo(ctx context.Context, owner string, repo string, opts *IssueListByRepoOptions) ([]*Issue, *Response, error) {
219	u := fmt.Sprintf("repos/%v/%v/issues", owner, repo)
220	u, err := addOptions(u, opts)
221	if err != nil {
222		return nil, nil, err
223	}
224
225	req, err := s.client.NewRequest("GET", u, nil)
226	if err != nil {
227		return nil, nil, err
228	}
229
230	// TODO: remove custom Accept header when this API fully launches.
231	req.Header.Set("Accept", mediaTypeReactionsPreview)
232
233	var issues []*Issue
234	resp, err := s.client.Do(ctx, req, &issues)
235	if err != nil {
236		return nil, resp, err
237	}
238
239	return issues, resp, nil
240}
241
242// Get a single issue.
243//
244// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/issues/#get-an-issue
245func (s *IssuesService) Get(ctx context.Context, owner string, repo string, number int) (*Issue, *Response, error) {
246	u := fmt.Sprintf("repos/%v/%v/issues/%d", owner, repo, number)
247	req, err := s.client.NewRequest("GET", u, nil)
248	if err != nil {
249		return nil, nil, err
250	}
251
252	// TODO: remove custom Accept header when this API fully launch.
253	req.Header.Set("Accept", mediaTypeReactionsPreview)
254
255	issue := new(Issue)
256	resp, err := s.client.Do(ctx, req, issue)
257	if err != nil {
258		return nil, resp, err
259	}
260
261	return issue, resp, nil
262}
263
264// Create a new issue on the specified repository.
265//
266// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/issues/#create-an-issue
267func (s *IssuesService) Create(ctx context.Context, owner string, repo string, issue *IssueRequest) (*Issue, *Response, error) {
268	u := fmt.Sprintf("repos/%v/%v/issues", owner, repo)
269	req, err := s.client.NewRequest("POST", u, issue)
270	if err != nil {
271		return nil, nil, err
272	}
273
274	i := new(Issue)
275	resp, err := s.client.Do(ctx, req, i)
276	if err != nil {
277		return nil, resp, err
278	}
279
280	return i, resp, nil
281}
282
283// Edit an issue.
284//
285// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/issues/#update-an-issue
286func (s *IssuesService) Edit(ctx context.Context, owner string, repo string, number int, issue *IssueRequest) (*Issue, *Response, error) {
287	u := fmt.Sprintf("repos/%v/%v/issues/%d", owner, repo, number)
288	req, err := s.client.NewRequest("PATCH", u, issue)
289	if err != nil {
290		return nil, nil, err
291	}
292
293	i := new(Issue)
294	resp, err := s.client.Do(ctx, req, i)
295	if err != nil {
296		return nil, resp, err
297	}
298
299	return i, resp, nil
300}
301
302// LockIssueOptions specifies the optional parameters to the
303// IssuesService.Lock method.
304type LockIssueOptions struct {
305	// LockReason specifies the reason to lock this issue.
306	// Providing a lock reason can help make it clearer to contributors why an issue
307	// was locked. Possible values are: "off-topic", "too heated", "resolved", and "spam".
308	LockReason string `json:"lock_reason,omitempty"`
309}
310
311// Lock an issue's conversation.
312//
313// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/issues/#lock-an-issue
314func (s *IssuesService) Lock(ctx context.Context, owner string, repo string, number int, opts *LockIssueOptions) (*Response, error) {
315	u := fmt.Sprintf("repos/%v/%v/issues/%d/lock", owner, repo, number)
316	req, err := s.client.NewRequest("PUT", u, opts)
317	if err != nil {
318		return nil, err
319	}
320
321	return s.client.Do(ctx, req, nil)
322}
323
324// Unlock an issue's conversation.
325//
326// GitHub API docs: https://docs.github.com/en/free-pro-team@latest/rest/reference/issues/#unlock-an-issue
327func (s *IssuesService) Unlock(ctx context.Context, owner string, repo string, number int) (*Response, error) {
328	u := fmt.Sprintf("repos/%v/%v/issues/%d/lock", owner, repo, number)
329	req, err := s.client.NewRequest("DELETE", u, nil)
330	if err != nil {
331		return nil, err
332	}
333
334	return s.client.Do(ctx, req, nil)
335}
336