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scan-alert-hardening: different-finder re-alert within 250m window + fingerprint 24h block (12/12 scenarios pass)

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This commit is contained in:
Sam Rolfe
2026-08-07 17:29:47 +10:00
parent f646af3ec6
commit 61737825ea
9 changed files with 140 additions and 33 deletions
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49
frontend/internal/db/queries.sql.go
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@@ -120,7 +120,7 @@ func (q *Queries) CreateUser(ctx context.Context, arg CreateUserParams) (User, e
}
const getLastAlertByTag = `-- name: GetLastAlertByTag :one
SELECT id, tag_id, scanned_at, lat, lng, location_shared, scanner_phone, alert_sent FROM scans
SELECT id, tag_id, scanned_at, lat, lng, location_shared, scanner_phone, alert_sent, fingerprint FROM scans
WHERE tag_id = $1 AND alert_sent = TRUE
ORDER BY scanned_at DESC
LIMIT 1
@@ -138,12 +138,13 @@ func (q *Queries) GetLastAlertByTag(ctx context.Context, tagID int64) (Scan, err
&i.LocationShared,
&i.ScannerPhone,
&i.AlertSent,
&i.Fingerprint,
)
return i, err
}
const getLatestScanByTag = `-- name: GetLatestScanByTag :one
SELECT id, tag_id, scanned_at, lat, lng, location_shared, scanner_phone, alert_sent FROM scans
SELECT id, tag_id, scanned_at, lat, lng, location_shared, scanner_phone, alert_sent, fingerprint FROM scans
WHERE tag_id = $1
ORDER BY scanned_at DESC
LIMIT 1
@@ -161,6 +162,36 @@ func (q *Queries) GetLatestScanByTag(ctx context.Context, tagID int64) (Scan, er
&i.LocationShared,
&i.ScannerPhone,
&i.AlertSent,
&i.Fingerprint,
)
return i, err
}
const getRecentScanByFingerprint = `-- name: GetRecentScanByFingerprint :one
SELECT id, tag_id, scanned_at, lat, lng, location_shared, scanner_phone, alert_sent, fingerprint FROM scans
WHERE fingerprint = $1 AND id <> $2 AND scanned_at > now() - interval '24 hours'
ORDER BY scanned_at DESC
LIMIT 1
`
type GetRecentScanByFingerprintParams struct {
Fingerprint pgtype.Text `json:"fingerprint"`
ID int64 `json:"id"`
}
func (q *Queries) GetRecentScanByFingerprint(ctx context.Context, arg GetRecentScanByFingerprintParams) (Scan, error) {
row := q.db.QueryRow(ctx, getRecentScanByFingerprint, arg.Fingerprint, arg.ID)
var i Scan
err := row.Scan(
&i.ID,
&i.TagID,
&i.ScannedAt,
&i.Lat,
&i.Lng,
&i.LocationShared,
&i.ScannerPhone,
&i.AlertSent,
&i.Fingerprint,
)
return i, err
}
@@ -256,9 +287,9 @@ func (q *Queries) GetUserByID(ctx context.Context, id int64) (User, error) {
}
const insertScan = `-- name: InsertScan :one
INSERT INTO scans (tag_id, lat, lng, location_shared, scanner_phone)
VALUES ($1, $2, $3, $4, $5)
RETURNING id, tag_id, scanned_at, lat, lng, location_shared, scanner_phone, alert_sent
INSERT INTO scans (tag_id, lat, lng, location_shared, scanner_phone, fingerprint)
VALUES ($1, $2, $3, $4, $5, $6)
RETURNING id, tag_id, scanned_at, lat, lng, location_shared, scanner_phone, alert_sent, fingerprint
`
type InsertScanParams struct {
@@ -267,6 +298,7 @@ type InsertScanParams struct {
Lng pgtype.Float8 `json:"lng"`
LocationShared bool `json:"location_shared"`
ScannerPhone pgtype.Text `json:"scanner_phone"`
Fingerprint pgtype.Text `json:"fingerprint"`
}
func (q *Queries) InsertScan(ctx context.Context, arg InsertScanParams) (Scan, error) {
@@ -276,6 +308,7 @@ func (q *Queries) InsertScan(ctx context.Context, arg InsertScanParams) (Scan, e
arg.Lng,
arg.LocationShared,
arg.ScannerPhone,
arg.Fingerprint,
)
var i Scan
err := row.Scan(
@@ -287,6 +320,7 @@ func (q *Queries) InsertScan(ctx context.Context, arg InsertScanParams) (Scan, e
&i.LocationShared,
&i.ScannerPhone,
&i.AlertSent,
&i.Fingerprint,
)
return i, err
}
@@ -374,16 +408,17 @@ func (q *Queries) SetScanAlertSent(ctx context.Context, arg SetScanAlertSentPara
}
const setScanPhone = `-- name: SetScanPhone :exec
UPDATE scans SET scanner_phone = $2 WHERE id = $1
UPDATE scans SET scanner_phone = $2, fingerprint = $3 WHERE id = $1
`
type SetScanPhoneParams struct {
ID int64 `json:"id"`
ScannerPhone pgtype.Text `json:"scanner_phone"`
Fingerprint pgtype.Text `json:"fingerprint"`
}
func (q *Queries) SetScanPhone(ctx context.Context, arg SetScanPhoneParams) error {
_, err := q.db.Exec(ctx, setScanPhone, arg.ID, arg.ScannerPhone)
_, err := q.db.Exec(ctx, setScanPhone, arg.ID, arg.ScannerPhone, arg.Fingerprint)
return err
}