104 lines
3.0 KiB
Go
104 lines
3.0 KiB
Go
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package store
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"time"
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"github.com/jackc/pgx/v5"
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)
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// MetadataHeroSettingsKey is the app_settings row backing the household-wide metadata
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// hero composition.
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const MetadataHeroSettingsKey = "metadata_hero_settings"
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const (
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MetadataHeroTitle = "title"
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MetadataHeroRatings = "ratings"
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MetadataHeroFacts = "facts"
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MetadataHeroSummary = "summary"
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MetadataHeroReason = "recommendation_reason"
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MetadataHeroTime = "time_remaining"
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)
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var DefaultMetadataHeroContentOrder = []string{
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MetadataHeroTitle,
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MetadataHeroRatings,
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MetadataHeroFacts,
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MetadataHeroSummary,
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}
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var MetadataHeroContentOptions = []string{
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MetadataHeroTitle,
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MetadataHeroRatings,
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MetadataHeroFacts,
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MetadataHeroSummary,
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MetadataHeroReason,
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MetadataHeroTime,
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}
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// MetadataHeroSettings is one presentation decision for the whole household. It lives
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// outside user preferences because the hero is part of the product's shared composition,
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// not something that should change when the viewer changes.
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type MetadataHeroSettings struct {
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ContentOrder []string `json:"contentOrder"`
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UpdatedAt time.Time `json:"updatedAt"`
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UpdatedBy string `json:"updatedBy,omitempty"`
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}
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func NormalizeMetadataHeroSettings(settings MetadataHeroSettings) MetadataHeroSettings {
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seen := map[string]bool{}
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order := make([]string, 0, len(MetadataHeroContentOptions))
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for _, entry := range settings.ContentOrder {
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if seen[entry] || !containsString(MetadataHeroContentOptions, entry) {
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continue
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}
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seen[entry] = true
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order = append(order, entry)
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}
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if len(order) == 0 {
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order = append([]string(nil), DefaultMetadataHeroContentOrder...)
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}
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settings.ContentOrder = order
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return settings
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}
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func (s *Store) MetadataHeroSettings(ctx context.Context) (MetadataHeroSettings, error) {
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var raw []byte
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err := s.pool.QueryRow(ctx,
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`SELECT value FROM app_settings WHERE key = $1`, MetadataHeroSettingsKey).Scan(&raw)
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if errors.Is(err, pgx.ErrNoRows) {
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return NormalizeMetadataHeroSettings(MetadataHeroSettings{}), nil
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}
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if err != nil {
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return MetadataHeroSettings{}, fmt.Errorf("store: read metadata hero settings: %w", err)
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}
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var settings MetadataHeroSettings
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if err := json.Unmarshal(raw, &settings); err != nil {
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return MetadataHeroSettings{}, fmt.Errorf("store: decode metadata hero settings: %w", err)
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}
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return NormalizeMetadataHeroSettings(settings), nil
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}
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func (s *Store) SetMetadataHeroSettings(
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ctx context.Context, settings MetadataHeroSettings,
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) (MetadataHeroSettings, error) {
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settings = NormalizeMetadataHeroSettings(settings)
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settings.UpdatedAt = time.Now().UTC()
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raw, err := json.Marshal(settings)
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if err != nil {
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return MetadataHeroSettings{}, err
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}
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_, err = s.pool.Exec(ctx, `
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INSERT INTO app_settings (key, value, updated_at)
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VALUES ($1, $2::jsonb, now())
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ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value, updated_at = now()`,
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MetadataHeroSettingsKey, string(raw))
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if err != nil {
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return MetadataHeroSettings{}, fmt.Errorf("store: write metadata hero settings: %w", err)
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}
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return settings, nil
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}
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