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issues.go
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234 lines
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6.5 KB
| 1 | package repo |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "database/sql" |
| 6 | "errors" |
| 7 | "fmt" |
| 8 | "strings" |
| 9 | "time" |
| 10 | ) |
| 11 | |
| 12 | var ( |
| 13 | ErrIssueNotFound = errors.New("issue not found") |
| 14 | ErrEmptyTitle = errors.New("issue title cannot be empty") |
| 15 | ErrEmptyComment = errors.New("comment cannot be empty") |
| 16 | ) |
| 17 | |
| 18 | type Issue struct { |
| 19 | ID int64 |
| 20 | RepoID int64 |
| 21 | Number int |
| 22 | AuthorID int64 |
| 23 | AuthorUsername string |
| 24 | AuthorAvatar string |
| 25 | Title string |
| 26 | Body string |
| 27 | IsClosed bool |
| 28 | CommentCount int |
| 29 | CreatedAt time.Time |
| 30 | UpdatedAt time.Time |
| 31 | } |
| 32 | |
| 33 | type IssueComment struct { |
| 34 | ID int64 |
| 35 | IssueID int64 |
| 36 | AuthorID int64 |
| 37 | AuthorUsername string |
| 38 | AuthorAvatar string |
| 39 | Body string |
| 40 | CreatedAt time.Time |
| 41 | } |
| 42 | |
| 43 | func (s *Service) CreateIssue(ctx context.Context, repoID, authorID int64, title, body string) (*Issue, error) { |
| 44 | title = strings.TrimSpace(title) |
| 45 | body = strings.TrimSpace(body) |
| 46 | if title == "" { |
| 47 | return nil, ErrEmptyTitle |
| 48 | } |
| 49 | if len(title) > 200 { |
| 50 | title = title[:200] |
| 51 | } |
| 52 | if len(body) > 20000 { |
| 53 | body = body[:20000] |
| 54 | } |
| 55 | |
| 56 | cctx, cancel := context.WithTimeout(ctx, 5*time.Second) |
| 57 | defer cancel() |
| 58 | |
| 59 | tx, err := s.db.BeginTx(cctx, nil) |
| 60 | if err != nil { |
| 61 | return nil, fmt.Errorf("begin create issue tx: %w", err) |
| 62 | } |
| 63 | defer func() { _ = tx.Rollback() }() |
| 64 | |
| 65 | var nextNum int |
| 66 | err = tx.QueryRowContext(cctx, `SELECT COALESCE(MAX(number), 0) + 1 FROM issues WHERE repo_id = ?`, repoID).Scan(&nextNum) |
| 67 | if err != nil { |
| 68 | return nil, fmt.Errorf("next issue number: %w", err) |
| 69 | } |
| 70 | |
| 71 | now := time.Now().UTC() |
| 72 | res, err := tx.ExecContext(cctx, ` |
| 73 | INSERT INTO issues (repo_id, number, author_id, title, body, is_closed, created_at, updated_at) |
| 74 | VALUES (?, ?, ?, ?, ?, 0, ?, ?) |
| 75 | `, repoID, nextNum, authorID, title, body, now, now) |
| 76 | if err != nil { |
| 77 | return nil, fmt.Errorf("insert issue: %w", err) |
| 78 | } |
| 79 | |
| 80 | id, _ := res.LastInsertId() |
| 81 | if err := tx.Commit(); err != nil { |
| 82 | return nil, fmt.Errorf("commit issue tx: %w", err) |
| 83 | } |
| 84 | |
| 85 | return &Issue{ |
| 86 | ID: id, |
| 87 | RepoID: repoID, |
| 88 | Number: nextNum, |
| 89 | AuthorID: authorID, |
| 90 | Title: title, |
| 91 | Body: body, |
| 92 | IsClosed: false, |
| 93 | CreatedAt: now, |
| 94 | UpdatedAt: now, |
| 95 | }, nil |
| 96 | } |
| 97 | |
| 98 | func (s *Service) ListIssues(ctx context.Context, repoID int64, isClosed bool) ([]Issue, error) { |
| 99 | cctx, cancel := context.WithTimeout(ctx, 5*time.Second) |
| 100 | defer cancel() |
| 101 | |
| 102 | closedInt := 0 |
| 103 | if isClosed { |
| 104 | closedInt = 1 |
| 105 | } |
| 106 | |
| 107 | rows, err := s.db.QueryContext(cctx, ` |
| 108 | SELECT i.id, i.repo_id, i.number, i.author_id, u.username, u.avatar_url, |
| 109 | i.title, i.body, i.is_closed, |
| 110 | (SELECT COUNT(*) FROM issue_comments ic WHERE ic.issue_id = i.id) AS comment_count, |
| 111 | i.created_at, i.updated_at |
| 112 | FROM issues i |
| 113 | JOIN users u ON u.id = i.author_id |
| 114 | WHERE i.repo_id = ? AND i.is_closed = ? |
| 115 | ORDER BY i.number DESC |
| 116 | `, repoID, closedInt) |
| 117 | if err != nil { |
| 118 | return nil, fmt.Errorf("list issues: %w", err) |
| 119 | } |
| 120 | defer rows.Close() |
| 121 | |
| 122 | var issues []Issue |
| 123 | for rows.Next() { |
| 124 | var iss Issue |
| 125 | var closed int |
| 126 | if err := rows.Scan(&iss.ID, &iss.RepoID, &iss.Number, &iss.AuthorID, &iss.AuthorUsername, &iss.AuthorAvatar, |
| 127 | &iss.Title, &iss.Body, &closed, &iss.CommentCount, &iss.CreatedAt, &iss.UpdatedAt); err != nil { |
| 128 | return nil, fmt.Errorf("scan issue: %w", err) |
| 129 | } |
| 130 | iss.IsClosed = closed == 1 |
| 131 | issues = append(issues, iss) |
| 132 | } |
| 133 | return issues, rows.Err() |
| 134 | } |
| 135 | |
| 136 | func (s *Service) CountIssues(ctx context.Context, repoID int64) (openCount int, closedCount int, err error) { |
| 137 | cctx, cancel := context.WithTimeout(ctx, 3*time.Second) |
| 138 | defer cancel() |
| 139 | |
| 140 | _ = s.db.QueryRowContext(cctx, `SELECT COUNT(*) FROM issues WHERE repo_id = ? AND is_closed = 0`, repoID).Scan(&openCount) |
| 141 | _ = s.db.QueryRowContext(cctx, `SELECT COUNT(*) FROM issues WHERE repo_id = ? AND is_closed = 1`, repoID).Scan(&closedCount) |
| 142 | return openCount, closedCount, nil |
| 143 | } |
| 144 | |
| 145 | func (s *Service) GetIssue(ctx context.Context, repoID int64, number int) (*Issue, error) { |
| 146 | cctx, cancel := context.WithTimeout(ctx, 3*time.Second) |
| 147 | defer cancel() |
| 148 | |
| 149 | var iss Issue |
| 150 | var closed int |
| 151 | err := s.db.QueryRowContext(cctx, ` |
| 152 | SELECT i.id, i.repo_id, i.number, i.author_id, u.username, u.avatar_url, |
| 153 | i.title, i.body, i.is_closed, |
| 154 | (SELECT COUNT(*) FROM issue_comments ic WHERE ic.issue_id = i.id) AS comment_count, |
| 155 | i.created_at, i.updated_at |
| 156 | FROM issues i |
| 157 | JOIN users u ON u.id = i.author_id |
| 158 | WHERE i.repo_id = ? AND i.number = ? |
| 159 | `, repoID, number).Scan(&iss.ID, &iss.RepoID, &iss.Number, &iss.AuthorID, &iss.AuthorUsername, &iss.AuthorAvatar, |
| 160 | &iss.Title, &iss.Body, &closed, &iss.CommentCount, &iss.CreatedAt, &iss.UpdatedAt) |
| 161 | if err != nil { |
| 162 | if errors.Is(err, sql.ErrNoRows) { |
| 163 | return nil, ErrIssueNotFound |
| 164 | } |
| 165 | return nil, fmt.Errorf("get issue: %w", err) |
| 166 | } |
| 167 | iss.IsClosed = closed == 1 |
| 168 | return &iss, nil |
| 169 | } |
| 170 | |
| 171 | func (s *Service) SetIssueClosed(ctx context.Context, issueID int64, closed bool) error { |
| 172 | cctx, cancel := context.WithTimeout(ctx, 3*time.Second) |
| 173 | defer cancel() |
| 174 | |
| 175 | val := 0 |
| 176 | if closed { |
| 177 | val = 1 |
| 178 | } |
| 179 | _, err := s.db.ExecContext(cctx, ` |
| 180 | UPDATE issues SET is_closed = ?, updated_at = ? WHERE id = ? |
| 181 | `, val, time.Now().UTC(), issueID) |
| 182 | return err |
| 183 | } |
| 184 | |
| 185 | func (s *Service) CreateIssueComment(ctx context.Context, issueID, authorID int64, body string) error { |
| 186 | body = strings.TrimSpace(body) |
| 187 | if body == "" { |
| 188 | return ErrEmptyComment |
| 189 | } |
| 190 | if len(body) > 20000 { |
| 191 | body = body[:20000] |
| 192 | } |
| 193 | |
| 194 | cctx, cancel := context.WithTimeout(ctx, 5*time.Second) |
| 195 | defer cancel() |
| 196 | |
| 197 | now := time.Now().UTC() |
| 198 | _, err := s.db.ExecContext(cctx, ` |
| 199 | INSERT INTO issue_comments (issue_id, author_id, body, created_at) |
| 200 | VALUES (?, ?, ?, ?) |
| 201 | `, issueID, authorID, body, now) |
| 202 | if err != nil { |
| 203 | return fmt.Errorf("insert comment: %w", err) |
| 204 | } |
| 205 | _, _ = s.db.ExecContext(cctx, `UPDATE issues SET updated_at = ? WHERE id = ?`, now, issueID) |
| 206 | return nil |
| 207 | } |
| 208 | |
| 209 | func (s *Service) ListIssueComments(ctx context.Context, issueID int64) ([]IssueComment, error) { |
| 210 | cctx, cancel := context.WithTimeout(ctx, 5*time.Second) |
| 211 | defer cancel() |
| 212 | |
| 213 | rows, err := s.db.QueryContext(cctx, ` |
| 214 | SELECT ic.id, ic.issue_id, ic.author_id, u.username, u.avatar_url, ic.body, ic.created_at |
| 215 | FROM issue_comments ic |
| 216 | JOIN users u ON u.id = ic.author_id |
| 217 | WHERE ic.issue_id = ? |
| 218 | ORDER BY ic.created_at ASC |
| 219 | `, issueID) |
| 220 | if err != nil { |
| 221 | return nil, fmt.Errorf("list issue comments: %w", err) |
| 222 | } |
| 223 | defer rows.Close() |
| 224 | |
| 225 | var list []IssueComment |
| 226 | for rows.Next() { |
| 227 | var c IssueComment |
| 228 | if err := rows.Scan(&c.ID, &c.IssueID, &c.AuthorID, &c.AuthorUsername, &c.AuthorAvatar, &c.Body, &c.CreatedAt); err != nil { |
| 229 | return nil, fmt.Errorf("scan issue comment: %w", err) |
| 230 | } |
| 231 | list = append(list, c) |
| 232 | } |
| 233 | return list, rows.Err() |
| 234 | } |
| 235 |