Add uncategorised patterns GraphQL endpoint

Backend for the cookie banner detection page: a new
uncategorisedPatterns connection on CookieBanner with
sortable (NAME, LAST_MATCHED_AT, UPDATED_AT, SOURCE)
and filterable (text ILIKE on name/description, source
enum) paginated results. COALESCE handles NULL-first
ordering for last_matched_at.

Signed-off-by: Émile Ré <emile@getprobo.com>

pkg/coredata/cookie_pattern.go

@@ -53,6 +53,17 @@ func (cp *CookiePattern) CursorKey(field CookiePatternOrderField) page.CursorKey
 	switch field {
 	case CookiePatternOrderFieldCreatedAt:
 		return page.NewCursorKey(cp.ID, cp.CreatedAt)
+	case CookiePatternOrderFieldName:
+		return page.NewCursorKey(cp.ID, cp.DisplayName)
+	case CookiePatternOrderFieldLastMatchedAt:
+		if cp.LastMatchedAt == nil {
+			return page.NewCursorKey(cp.ID, time.Time{})
+		}
+		return page.NewCursorKey(cp.ID, *cp.LastMatchedAt)
+	case CookiePatternOrderFieldUpdatedAt:
+		return page.NewCursorKey(cp.ID, cp.UpdatedAt)
+	case CookiePatternOrderFieldSource:
+		return page.NewCursorKey(cp.ID, string(cp.Source))
 	}
 
 	panic(fmt.Sprintf("unsupported order by: %s", field))
@@ -639,6 +650,115 @@ WHERE
 	return nil
 }
 
+func (cps *CookiePatterns) LoadUncategorisedByCookieBannerID(
+	ctx context.Context,
+	conn pg.Querier,
+	scope Scoper,
+	cookieBannerID gid.GID,
+	cursor *page.Cursor[CookiePatternOrderField],
+	filter *CookiePatternFilter,
+) error {
+	q := `
+SELECT
+	id,
+	organization_id,
+	cookie_banner_id,
+	cookie_category_id,
+	pattern,
+	match_type,
+	display_name,
+	max_age_seconds,
+	description,
+	source,
+	excluded,
+	last_matched_at,
+	created_at,
+	updated_at
+FROM
+	cookie_patterns
+WHERE
+	%s
+	AND cookie_banner_id = @cookie_banner_id
+	AND cookie_category_id = (
+		SELECT id FROM cookie_categories
+		WHERE cookie_banner_id = @cookie_banner_id
+			AND kind = @category_kind
+			AND %s
+		LIMIT 1
+	)
+	AND %s
+	AND %s
+`
+
+	q = fmt.Sprintf(q, scope.SQLFragment(), scope.SQLFragment(), filter.SQLFragment(), cursor.SQLFragment())
+
+	args := pgx.StrictNamedArgs{
+		"cookie_banner_id": cookieBannerID,
+		"category_kind":    CookieCategoryKindUncategorised,
+	}
+	maps.Copy(args, scope.SQLArguments())
+	maps.Copy(args, filter.SQLArguments())
+	maps.Copy(args, cursor.SQLArguments())
+
+	rows, err := conn.Query(ctx, q, args)
+	if err != nil {
+		return fmt.Errorf("cannot query uncategorised cookie patterns: %w", err)
+	}
+
+	patterns, err := pgx.CollectRows(rows, pgx.RowToAddrOfStructByName[CookiePattern])
+	if err != nil {
+		return fmt.Errorf("cannot collect uncategorised cookie patterns: %w", err)
+	}
+
+	*cps = patterns
+
+	return nil
+}
+
+func (cps *CookiePatterns) CountUncategorisedByCookieBannerID(
+	ctx context.Context,
+	conn pg.Querier,
+	scope Scoper,
+	cookieBannerID gid.GID,
+	filter *CookiePatternFilter,
+) (int, error) {
+	q := `
+SELECT
+	COUNT(id)
+FROM
+	cookie_patterns
+WHERE
+	%s
+	AND cookie_banner_id = @cookie_banner_id
+	AND cookie_category_id = (
+		SELECT id FROM cookie_categories
+		WHERE cookie_banner_id = @cookie_banner_id
+			AND kind = @category_kind
+			AND %s
+		LIMIT 1
+	)
+	AND %s
+`
+
+	q = fmt.Sprintf(q, scope.SQLFragment(), scope.SQLFragment(), filter.SQLFragment())
+
+	args := pgx.StrictNamedArgs{
+		"cookie_banner_id": cookieBannerID,
+		"category_kind":    CookieCategoryKindUncategorised,
+	}
+	maps.Copy(args, scope.SQLArguments())
+	maps.Copy(args, filter.SQLArguments())
+
+	row := conn.QueryRow(ctx, q, args)
+
+	var count int
+	if err := row.Scan(&count); err != nil {
+		return 0, fmt.Errorf("cannot scan count: %w", err)
+	}
+
+	return count, nil
+}
+
 func (cps *CookiePatterns) MoveToCategoryByCookieCategoryID(
 	ctx context.Context,
 	tx pg.Tx,

pkg/coredata/cookie_pattern_filter.go

@@ -23,6 +23,8 @@ type CookiePatternFilter struct {
 	matchType        *CookiePatternMatchType
 	cookieCategoryID *gid.GID
 	excluded         *bool
+	query            *string
+	source           *CookieSource
 }
 
 func NewCookiePatternFilter(
@@ -37,6 +39,16 @@ func NewCookiePatternFilter(
 	}
 }
 
+func (f *CookiePatternFilter) WithQuery(query *string) *CookiePatternFilter {
+	f.query = query
+	return f
+}
+
+func (f *CookiePatternFilter) WithSource(source *CookieSource) *CookiePatternFilter {
+	f.source = source
+	return f
+}
+
 func (f *CookiePatternFilter) SQLFragment() string {
 	if f == nil {
 		return "TRUE"
@@ -64,6 +76,20 @@ func (f *CookiePatternFilter) SQLFragment() string {
 			excluded = @filter_excluded
 		ELSE TRUE
 	END
+	AND
+	CASE
+		WHEN @filter_query::text IS NOT NULL AND @filter_query::text != '' THEN
+			(display_name ILIKE '%' || @filter_query || '%'
+			 OR description ILIKE '%' || @filter_query || '%')
+		ELSE TRUE
+	END
+	AND
+	CASE
+		WHEN @has_source_filter::boolean = false THEN TRUE
+		WHEN @has_source_filter::boolean = true THEN
+			source = @filter_source::cookie_source
+		ELSE TRUE
+	END
 )`
 }
 
@@ -79,6 +105,9 @@ func (f *CookiePatternFilter) SQLArguments() pgx.StrictNamedArgs {
 		"filter_cookie_category_id":     nil,
 		"has_excluded_filter":           false,
 		"filter_excluded":               nil,
+		"filter_query":                  nil,
+		"has_source_filter":             false,
+		"filter_source":                 nil,
 	}
 
 	if f.matchType != nil {
@@ -96,5 +125,14 @@ func (f *CookiePatternFilter) SQLArguments() pgx.StrictNamedArgs {
 		args["filter_excluded"] = *f.excluded
 	}
 
+	if f.query != nil {
+		args["filter_query"] = *f.query
+	}
+
+	if f.source != nil {
+		args["has_source_filter"] = true
+		args["filter_source"] = string(*f.source)
+	}
+
 	return args
 }

pkg/coredata/cookie_pattern_order_field.go

@@ -19,20 +19,36 @@ import "fmt"
 type CookiePatternOrderField string
 
 const (
-	CookiePatternOrderFieldCreatedAt CookiePatternOrderField = "CREATED_AT"
+	CookiePatternOrderFieldCreatedAt     CookiePatternOrderField = "CREATED_AT"
+	CookiePatternOrderFieldName          CookiePatternOrderField = "NAME"
+	CookiePatternOrderFieldLastMatchedAt CookiePatternOrderField = "LAST_MATCHED_AT"
+	CookiePatternOrderFieldUpdatedAt     CookiePatternOrderField = "UPDATED_AT"
+	CookiePatternOrderFieldSource        CookiePatternOrderField = "SOURCE"
 )
 
 func (p CookiePatternOrderField) Column() string {
 	switch p {
 	case CookiePatternOrderFieldCreatedAt:
 		return "created_at"
+	case CookiePatternOrderFieldName:
+		return "display_name"
+	case CookiePatternOrderFieldLastMatchedAt:
+		return "COALESCE(last_matched_at, '0001-01-01T00:00:00Z'::timestamptz)"
+	case CookiePatternOrderFieldUpdatedAt:
+		return "updated_at"
+	case CookiePatternOrderFieldSource:
+		return "source"
 	}
 	panic(fmt.Sprintf("unsupported order by: %s", p))
 }
 
 func (p CookiePatternOrderField) IsValid() bool {
 	switch p {
-	case CookiePatternOrderFieldCreatedAt:
+	case CookiePatternOrderFieldCreatedAt,
+		CookiePatternOrderFieldName,
+		CookiePatternOrderFieldLastMatchedAt,
+		CookiePatternOrderFieldUpdatedAt,
+		CookiePatternOrderFieldSource:
 		return true
 	}
 	return false