mirror of
https://github.com/warmbly/warmbly.git
synced 2026-09-21 08:02:25 +00:00
64 lines
2.0 KiB
Go
64 lines
2.0 KiB
Go
package repository
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import (
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"context"
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"fmt"
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"github.com/google/uuid"
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"github.com/warmbly/warmbly/internal/infrastructure/db"
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)
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// EmailGraphDeltaRepository persists the per-mailbox, per-folder Microsoft Graph
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// delta cursor. Like EmailHistoryIDRepository (the Gmail equivalent) it lives in
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// the consumer's Postgres; the disposable worker relays cursors over Kafka and
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// never touches the DB. Get returns the folder->deltaLink map used to seed the
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// worker when the mailbox is (re)assigned.
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type EmailGraphDeltaRepository interface {
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Put(ctx context.Context, userID, emailID uuid.UUID, folder, deltaLink string) error
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Get(ctx context.Context, userID, emailID uuid.UUID) (map[string]string, error)
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}
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type pgEmailGraphDeltaRepository struct {
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db *db.DB
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}
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func NewEmailGraphDeltaRepository(d *db.DB) EmailGraphDeltaRepository {
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return &pgEmailGraphDeltaRepository{db: d}
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}
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func (r *pgEmailGraphDeltaRepository) Put(ctx context.Context, userID, emailID uuid.UUID, folder, deltaLink string) error {
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const q = `
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INSERT INTO email_delta_links (user_id, email_id, folder, delta_link, last_updated_at)
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VALUES ($1, $2, $3, $4, now())
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ON CONFLICT (user_id, email_id, folder)
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DO UPDATE SET delta_link = EXCLUDED.delta_link, last_updated_at = now()
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`
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if _, err := r.db.Exec(ctx, q, userID, emailID, folder, deltaLink); err != nil {
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return fmt.Errorf("email_delta_links: put: %w", err)
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}
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return nil
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}
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func (r *pgEmailGraphDeltaRepository) Get(ctx context.Context, userID, emailID uuid.UUID) (map[string]string, error) {
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const q = `
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SELECT folder, delta_link
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FROM email_delta_links
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WHERE user_id = $1 AND email_id = $2
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`
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rows, err := r.db.Query(ctx, q, userID, emailID)
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if err != nil {
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return nil, fmt.Errorf("email_delta_links: get: %w", err)
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}
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defer rows.Close()
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out := map[string]string{}
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for rows.Next() {
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var folder, deltaLink string
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if err := rows.Scan(&folder, &deltaLink); err != nil {
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return nil, fmt.Errorf("email_delta_links: scan: %w", err)
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}
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out[folder] = deltaLink
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}
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return out, rows.Err()
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}
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