Add lead wake_on tool to wake the lead on a task's merge or discard

internal/store/lead.go

@@ -101,6 +101,42 @@ func (s *Store) DeleteLeadInputs(ctx context.Context, ids []int64) error {
 	})
 }
 
+func (s *Store) AddLeadWake(ctx context.Context, owner, taskID string) error {
+	return s.write(ctx, func(tx *sql.Tx, emit emitFunc) error {
+		active := false
+		err := tx.QueryRowContext(ctx, `SELECT status = ? FROM tasks WHERE id = ?`, string(api.TaskStatusActive), taskID).Scan(&active)
+		if errors.Is(err, sql.ErrNoRows) || (err == nil && !active) {
+			return ErrNotFound
+		}
+		if err != nil {
+			return err
+		}
+		_, err = tx.ExecContext(ctx, `INSERT OR IGNORE INTO lead_wakes (owner, task_id, created_at) VALUES (?, ?, ?)`, owner, taskID, now())
+		return err
+	})
+}
+
+func (s *Store) TakeLeadWakes(ctx context.Context, taskID string) ([]string, error) {
+	owners := []string{}
+	err := s.write(ctx, func(tx *sql.Tx, emit emitFunc) error {
+		rows, err := tx.QueryContext(ctx, `DELETE FROM lead_wakes WHERE task_id = ? RETURNING owner`, taskID)
+		if err != nil {
+			return err
+		}
+		defer rows.Close()
+		for rows.Next() {
+			owner := ""
+			err = rows.Scan(&owner)
+			if err != nil {
+				return err
+			}
+			owners = append(owners, owner)
+		}
+		return rows.Err()
+	})
+	return owners, err
+}
+
 func (s *Store) GetFocus(ctx context.Context, login string) (api.Focus, error) {
 	f := api.Focus{}
 	raw := ""

internal/store/migrations/093-add-lead-wakes.sql

@@ -0,0 +1,6 @@
+CREATE TABLE lead_wakes (
+	owner TEXT NOT NULL REFERENCES users(login),
+	task_id TEXT NOT NULL REFERENCES tasks(id),
+	created_at TEXT NOT NULL,
+	PRIMARY KEY (owner, task_id)
+);