package main

import (
	"fmt"
	"io"
)

func pbHeaderComment(w io.Writer) {
	// technically this should be the first line and in this exact format:
	fmt.Fprintln(w, "// Code modified by go.wit.com/apps/autogenpb DO NOT EDIT.")
	fmt.Fprintln(w, "//")
	fmt.Fprintln(w, "// user defined Mutex locks were auto added")
	fmt.Fprintln(w, "//")
	fmt.Fprintln(w, "// autogenpb version & build time:", VERSION, BUILDTIME)
	fmt.Fprintln(w, "// autogenpb auto generates Sort(), Unique() and Marshal() functions")
	fmt.Fprintln(w, "//     go install go.wit.com/apps/autogenpb@latest")
	fmt.Fprintln(w, "")
}

func headerComment(w io.Writer) {
	// technically this should be the first line and in this exact format:
	fmt.Fprintln(w, "// Code generated by go.wit.com/apps/autogenpb DO NOT EDIT.")
	fmt.Fprintln(w, "// This file was autogenerated with autogenpb", VERSION, BUILDTIME)
	fmt.Fprintln(w, "//     go install go.wit.com/apps/autogenpb@latest")
	fmt.Fprintln(w, "//")
	fmt.Fprintln(w, "// define which structs (messages) you want to use in the .proto file")
	fmt.Fprintln(w, "// Then sort.pb.go and marshal.pb.go files are autogenerated")
	fmt.Fprintln(w, "//")
	fmt.Fprintln(w, "// autogenpb uses it and has an example .proto file with instructions")
	fmt.Fprintln(w, "//")
	fmt.Fprintln(w, "")
}

func header(w io.Writer, pf *File) {
	// header must come first
	headerComment(w)
	fmt.Fprintf(w, "package %s\n", pf.Package)
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, "import (")
	fmt.Fprintln(w, "	\"fmt\"")
	fmt.Fprintln(w, "	\"sort\"")
	fmt.Fprintln(w, "	\"sync\"")
	fmt.Fprintln(w, ")")
	fmt.Fprintln(w, "")
}