129 lines
3.0 KiB
Go
129 lines
3.0 KiB
Go
package sqlite
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import (
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"database/sql"
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"encoding/json"
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"fmt"
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"time"
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"go-mod.ewintr.nl/planner/item"
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"go-mod.ewintr.nl/planner/plan/storage"
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)
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type SqliteEvent struct {
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db *sql.DB
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}
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func (s *SqliteEvent) Store(event item.Event) error {
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var recurStr *string
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if event.Recurrer != nil {
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recurBytes, err := json.Marshal(event.Recurrer)
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if err != nil {
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return fmt.Errorf("could not marshal recurrer: %v", err)
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}
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rs := string(recurBytes)
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recurStr = &rs
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}
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if _, err := s.db.Exec(`
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INSERT INTO events
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(id, title, start, duration, recur)
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VALUES
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(?, ?, ?, ?, ?)
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ON CONFLICT(id) DO UPDATE
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SET
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title=?,
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start=?,
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duration=?,
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recur=?
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`,
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event.ID, event.Title, event.Start.Format(timestampFormat), event.Duration.String(), recurStr,
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event.Title, event.Start.Format(timestampFormat), event.Duration.String(), recurStr); err != nil {
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return fmt.Errorf("%w: %v", ErrSqliteFailure, err)
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}
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return nil
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}
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func (s *SqliteEvent) Find(id string) (item.Event, error) {
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var event item.Event
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var durStr string
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var recurStr *string
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err := s.db.QueryRow(`
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SELECT id, title, start, duration, recur
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FROM events
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WHERE id = ?`, id).Scan(&event.ID, &event.Title, &event.Start, &durStr, &recurStr)
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switch {
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case err == sql.ErrNoRows:
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return item.Event{}, fmt.Errorf("event not found: %w", err)
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case err != nil:
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return item.Event{}, fmt.Errorf("%w: %v", ErrSqliteFailure, err)
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}
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dur, err := time.ParseDuration(durStr)
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if err != nil {
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return item.Event{}, fmt.Errorf("could not unmarshal recurrer: %v", err)
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}
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event.Duration = dur
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if recurStr != nil {
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var rec item.Recur
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if err := json.Unmarshal([]byte(*recurStr), &rec); err != nil {
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return item.Event{}, fmt.Errorf("%w: %v", ErrSqliteFailure, err)
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}
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event.Recurrer = &rec
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}
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return event, nil
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}
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func (s *SqliteEvent) FindAll() ([]item.Event, error) {
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rows, err := s.db.Query(`
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SELECT id, title, start, duration, recur
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FROM events`)
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if err != nil {
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return nil, fmt.Errorf("%w: %v", ErrSqliteFailure, err)
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}
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result := make([]item.Event, 0)
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defer rows.Close()
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for rows.Next() {
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var event item.Event
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var durStr string
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var recurStr *string
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if err := rows.Scan(&event.ID, &event.Title, &event.Start, &durStr, &recurStr); err != nil {
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return nil, fmt.Errorf("%w: %v", ErrSqliteFailure, err)
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}
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dur, err := time.ParseDuration(durStr)
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if err != nil {
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return nil, fmt.Errorf("%w: %v", ErrSqliteFailure, err)
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}
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event.Duration = dur
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if recurStr != nil {
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var rec item.Recur
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if err := json.Unmarshal([]byte(*recurStr), &rec); err != nil {
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return nil, fmt.Errorf("could not unmarshal recurrer: %v", err)
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}
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event.Recurrer = &rec
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}
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result = append(result, event)
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}
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return result, nil
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}
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func (s *SqliteEvent) Delete(id string) error {
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result, err := s.db.Exec(`
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DELETE FROM events
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WHERE id = ?`, id)
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if err != nil {
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return fmt.Errorf("%w: %v", ErrSqliteFailure, err)
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}
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rowsAffected, err := result.RowsAffected()
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if err != nil {
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return fmt.Errorf("%w: %v", ErrSqliteFailure, err)
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}
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if rowsAffected == 0 {
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return storage.ErrNotFound
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}
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return nil
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}
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