Add people signature filtering

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/coredata/document_version_signature.go

@@ -203,6 +203,7 @@ func (pvss *DocumentVersionSignatures) LoadByDocumentVersionID(
 	scope Scoper,
 	documentVersionID gid.GID,
 	cursor *page.Cursor[DocumentVersionSignatureOrderField],
+	filter *DocumentVersionSignatureFilter,
 ) error {
 	q := `
 SELECT
@@ -220,13 +221,15 @@ WHERE
 	%s
 	AND document_version_id = @document_version_id
 	AND %s
+	AND %s
 `
 
-	q = fmt.Sprintf(q, scope.SQLFragment(), cursor.SQLFragment())
+	q = fmt.Sprintf(q, scope.SQLFragment(), filter.SQLFragment(), cursor.SQLFragment())
 
 	args := pgx.StrictNamedArgs{"document_version_id": documentVersionID}
 	maps.Copy(args, scope.SQLArguments())
 	maps.Copy(args, cursor.SQLArguments())
+	maps.Copy(args, filter.SQLArguments())
 
 	rows, err := conn.Query(ctx, q, args)
 	if err != nil {

pkg/coredata/document_version_signature_filter.go

@@ -0,0 +1,48 @@
+// Copyright (c) 2025 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+package coredata
+
+import (
+	"github.com/jackc/pgx/v5"
+)
+
+type (
+	DocumentVersionSignatureFilter struct {
+		states DocumentVersionSignatureStates
+	}
+)
+
+func NewDocumentVersionSignatureFilter(states []DocumentVersionSignatureState) *DocumentVersionSignatureFilter {
+	return &DocumentVersionSignatureFilter{
+		states: DocumentVersionSignatureStates(states),
+	}
+}
+
+func (f *DocumentVersionSignatureFilter) SQLArguments() pgx.StrictNamedArgs {
+	return pgx.StrictNamedArgs{
+		"states": f.states,
+	}
+}
+
+func (f *DocumentVersionSignatureFilter) SQLFragment() string {
+	return `
+(
+	CASE
+		WHEN @states::policy_version_signature_state[] IS NOT NULL THEN
+			state = ANY(@states::policy_version_signature_state[])
+		ELSE TRUE
+	END
+)`
+}

pkg/coredata/document_version_signature_state.go

@@ -17,10 +17,12 @@ package coredata
 import (
 	"database/sql/driver"
 	"fmt"
+	"strings"
 )
 
 type (
-	DocumentVersionSignatureState string
+	DocumentVersionSignatureState  string
+	DocumentVersionSignatureStates []DocumentVersionSignatureState
 )
 
 const (
@@ -74,3 +76,16 @@ func (pvs *DocumentVersionSignatureState) Scan(value any) error {
 func (pvs DocumentVersionSignatureState) Value() (driver.Value, error) {
 	return pvs.String(), nil
 }
+
+func (states DocumentVersionSignatureStates) Value() (driver.Value, error) {
+	var result strings.Builder
+	result.WriteString("{")
+	for i, state := range states {
+		if i > 0 {
+			result.WriteString(",")
+		}
+		result.WriteString(fmt.Sprintf("%q", state.String()))
+	}
+	result.WriteString("}")
+	return result.String(), nil
+}