package plugin

import (
	"git.apinb.com/bsm-tools/protoc-gen-ts/internal/codegen"
	"google.golang.org/protobuf/reflect/protoreflect"
)

type messageGenerator struct {
	pkg     protoreflect.FullName
	message protoreflect.MessageDescriptor
}

func (m messageGenerator) Generate(f *codegen.File) {
	commentGenerator{descriptor: m.message}.generateLeading(f, 0)
	f.P("export type ", scopedDescriptorTypeName(m.pkg, m.message), " = {")
	rangeFields(m.message, func(field protoreflect.FieldDescriptor) {
		commentGenerator{descriptor: field}.generateLeading(f, 1)
		fieldType := typeFromField(m.pkg, field)
		f.P(t(1), field.JSONName(), "?: ", fieldType.Reference(), ";")
	})

	f.P("};")
	f.P()
}