refactor: deduplicate / type license feature code (#5734)

scripts/apitypings/main.go

@@ -63,7 +63,11 @@ type TypescriptTypes struct {
 // String just combines all the codeblocks.
 func (t TypescriptTypes) String() string {
 	var s strings.Builder
-	_, _ = s.WriteString("// Code generated by 'make site/src/api/typesGenerated.ts'. DO NOT EDIT.\n\n")
+	const prelude = `
+// Code generated by 'make site/src/api/typesGenerated.ts'. DO NOT EDIT.
+
+`
+	_, _ = s.WriteString(prelude)
 
 	sortedTypes := make([]string, 0, len(t.Types))
 	sortedEnums := make([]string, 0, len(t.Enums))
@@ -223,6 +227,18 @@ func (g *Generator) generateAll() (*TypescriptTypes, error) {
 			name, strings.Join(values, " | "),
 		))
 
+		var pluralName string
+		if strings.HasSuffix(name, "s") {
+			pluralName = name + "es"
+		} else {
+			pluralName = name + "s"
+		}
+
+		// Generate array used for enumerating all possible values.
+		_, _ = s.WriteString(fmt.Sprintf("export const %s: %s[] = [%s]\n",
+			pluralName, name, strings.Join(values, ", "),
+		))
+
 		enumCodeBlocks[name] = s.String()
 	}
 
@@ -644,6 +660,7 @@ func (g *Generator) typescriptType(ty types.Type) (TypescriptType, error) {
 			aboveTypeLine = aboveTypeLine + "\n"
 		}
 		aboveTypeLine = aboveTypeLine + valueType.AboveTypeLine
+
 		return TypescriptType{
 			ValueType:     fmt.Sprintf("Record<%s, %s>", keyType.ValueType, valueType.ValueType),
 			AboveTypeLine: aboveTypeLine,

scripts/apitypings/testdata/enums/enums.ts

@@ -2,3 +2,4 @@
 
 // From codersdk/enums.go
 export type Enum = "bar" | "baz" | "foo" | "qux"
+export const Enums: Enum[] = ["bar", "baz", "foo", "qux"]