feat(m1): backend scaffold - entries CRUD, start/stop, auth, migrations

internal/store/settings_store.go

@@ -0,0 +1,81 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+
+	"github.com/wotra/wotra/internal/domain"
+)
+
+// SettingsStore handles persistence for settings history.
+type SettingsStore struct {
+	db *sql.DB
+}
+
+func NewSettingsStore(db *sql.DB) *SettingsStore {
+	return &SettingsStore{db: db}
+}
+
+// Current returns the most recent settings effective on or before the given day key.
+func (s *SettingsStore) Current(ctx context.Context, asOfDayKey string) (*domain.Settings, error) {
+	row := s.db.QueryRowContext(ctx,
+		`SELECT id, effective_from, hours_per_week, workdays_mask, timezone, created_at
+		 FROM settings_history
+		 WHERE effective_from <= ?
+		 ORDER BY effective_from DESC, id DESC
+		 LIMIT 1`, asOfDayKey)
+	return scanSettings(row)
+}
+
+// Latest returns the most recently created settings row.
+func (s *SettingsStore) Latest(ctx context.Context) (*domain.Settings, error) {
+	row := s.db.QueryRowContext(ctx,
+		`SELECT id, effective_from, hours_per_week, workdays_mask, timezone, created_at
+		 FROM settings_history
+		 ORDER BY effective_from DESC, id DESC
+		 LIMIT 1`)
+	return scanSettings(row)
+}
+
+// History returns all settings rows ordered by effective_from DESC.
+func (s *SettingsStore) History(ctx context.Context) ([]*domain.Settings, error) {
+	rows, err := s.db.QueryContext(ctx,
+		`SELECT id, effective_from, hours_per_week, workdays_mask, timezone, created_at
+		 FROM settings_history ORDER BY effective_from DESC, id DESC`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var result []*domain.Settings
+	for rows.Next() {
+		var s domain.Settings
+		if err := rows.Scan(&s.ID, &s.EffectiveFrom, &s.HoursPerWeek, &s.WorkdaysMask, &s.Timezone, &s.CreatedAt); err != nil {
+			return nil, err
+		}
+		result = append(result, &s)
+	}
+	return result, rows.Err()
+}
+
+// Insert inserts a new settings row.
+func (s *SettingsStore) Insert(ctx context.Context, set *domain.Settings) error {
+	res, err := s.db.ExecContext(ctx,
+		`INSERT INTO settings_history (effective_from, hours_per_week, workdays_mask, timezone, created_at)
+		 VALUES (?, ?, ?, ?, ?)`,
+		set.EffectiveFrom, set.HoursPerWeek, set.WorkdaysMask, set.Timezone, set.CreatedAt)
+	if err != nil {
+		return err
+	}
+	id, _ := res.LastInsertId()
+	set.ID = id
+	return nil
+}
+
+func scanSettings(row *sql.Row) (*domain.Settings, error) {
+	var s domain.Settings
+	err := row.Scan(&s.ID, &s.EffectiveFrom, &s.HoursPerWeek, &s.WorkdaysMask, &s.Timezone, &s.CreatedAt)
+	if err != nil {
+		return nil, err
+	}
+	return &s, nil
+}