86 lines
1.9 KiB
Go
86 lines
1.9 KiB
Go
package postgres
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import (
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"context"
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"database/sql"
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"errors"
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"github.com/google/uuid"
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"github.com/lib/pq"
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"m8sh.su/d/jules/database"
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)
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type Chats struct {
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conn *sql.DB
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}
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func (c *Chats) Attach(ctx context.Context, userID uuid.UUID, platform, identifier string) error {
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_, err := c.conn.ExecContext(ctx, `
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INSERT INTO chats (user_id, platform, identifier)
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VALUES ($1, $2, $3)
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`, userID, platform, identifier)
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if err != nil {
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if pqErr, ok := errors.AsType[*pq.Error](err); ok && pqErr.Code == "23505" {
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return database.ErrAlreadyExists
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}
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return err
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}
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return nil
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}
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func (c *Chats) GetUserID(ctx context.Context, platform, identifier string) (uuid.UUID, error) {
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var userID uuid.UUID
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err := c.conn.QueryRowContext(ctx, `
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SELECT user_id
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FROM chats
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WHERE platform = $1 AND identifier = $2
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`, platform, identifier).Scan(&userID)
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if errors.Is(err, sql.ErrNoRows) {
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return uuid.Nil, database.ErrNotFound
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}
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if err != nil {
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return uuid.Nil, err
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}
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return userID, nil
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}
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func (c *Chats) List(ctx context.Context, userID uuid.UUID) ([]database.Chat, error) {
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rows, err := c.conn.QueryContext(ctx, `
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SELECT user_id, platform, identifier
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FROM chats
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WHERE user_id = $1
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`, userID)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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var chats []database.Chat
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for rows.Next() {
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var chat database.Chat
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if err = rows.Scan(&chat.UserID, &chat.Platform, &chat.Identifier); err != nil {
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return nil, err
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}
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chats = append(chats, chat)
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}
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if err = rows.Err(); err != nil {
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return nil, err
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}
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return chats, nil
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}
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func (c *Chats) Detach(ctx context.Context, userID uuid.UUID, platform string) error {
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result, err := c.conn.ExecContext(ctx, `
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DELETE FROM chats
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WHERE user_id = $1 AND platform = $2
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`, userID, platform)
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if err != nil {
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return err
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}
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rows, _ := result.RowsAffected()
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if rows == 0 {
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return database.ErrNotFound
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}
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return nil
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}
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