feat: URL rules and the settings singleton

controllers/rules.go

@@ -0,0 +1,90 @@
+package controllers
+
+import (
+	"context"
+	"strings"
+
+	"git.golem15.com/golem15/sm-seo-plugin/models"
+	"git.golem15.com/golem15/summercms/modules/backpack"
+	"git.golem15.com/golem15/summercms/modules/pact"
+	"gorm.io/gorm"
+)
+
+// rulesAdminController lists and edits URL rules (D-02, UI-SPEC C7).
+type rulesAdminController struct {
+	app func() *backpack.App
+}
+
+func (rulesAdminController) ID() string        { return RulesControllerID }
+func (rulesAdminController) ModelName() string { return `Golem15\SEO\Models\Rule` }
+func (rulesAdminController) ConfigDir() string { return "controllers/rules" }
+func (rulesAdminController) NewRecord() any    { return &models.Rule{} }
+func (rulesAdminController) RequiredPermissions() []string {
+	return []string{PermissionManage}
+}
+
+// FormBeforeCreate trims the address, normalises the match and refuses an
+// invalid or taken address.
+func (c rulesAdminController) FormBeforeCreate(ctx context.Context, model any) error {
+	return c.check(ctx, model)
+}
+
+// FormBeforeUpdate checks an update like a create.
+func (c rulesAdminController) FormBeforeUpdate(ctx context.Context, model any) error {
+	return c.check(ctx, model)
+}
+
+func (c rulesAdminController) check(ctx context.Context, model any) error {
+	r, ok := model.(*models.Rule)
+	if !ok || r == nil {
+		return nil
+	}
+	r.URL = strings.TrimSpace(r.URL)
+	r.Match = models.NormalizeMatch(r.Match)
+	db, err := database(ctx, c.app)
+	if err != nil {
+		return err
+	}
+	return problemsError(ctx, translator(c.app), r.Problems(db))
+}
+
+// ListExtendRecords fills the overrides column: the translated labels of
+// the properties each rule sets, comma-joined.
+func (c rulesAdminController) ListExtendRecords(ctx context.Context, _ *gorm.DB, records []any) error {
+	tr := translator(c.app)
+	for _, record := range records {
+		r, ok := record.(*models.Rule)
+		if !ok || r == nil {
+			continue
+		}
+		var labels []string
+		for _, p := range models.RuleProperties {
+			if strings.TrimSpace(r.Value(p.Column)) != "" {
+				labels = append(labels, Phrase(ctx, tr, p.Label, nil))
+			}
+		}
+		r.Overrides = strings.Join(labels, ", ")
+	}
+	return nil
+}
+
+// FilterOptions serves the match filter's two choices.
+func (rulesAdminController) FilterOptions(scope string) []pact.Option {
+	if scope != models.FilterMatch {
+		return nil
+	}
+	return []pact.Option{
+		{Value: models.MatchExact, Label: "golem15.seo::lang.rules.match_exact"},
+		{Value: models.MatchPattern, Label: "golem15.seo::lang.rules.match_pattern"},
+	}
+}
+
+var (
+	_ pact.AdminController   = rulesAdminController{}
+	_ pact.AdminPermissioned = rulesAdminController{}
+	_ pact.AdminRecordSource = rulesAdminController{}
+	_ pact.FormBeforeCreate  = rulesAdminController{}
+	_ pact.FormBeforeUpdate  = rulesAdminController{}
+	_ pact.ListExtendRecords = rulesAdminController{}
+	_ pact.FilterOptions     = rulesAdminController{}
+)