// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
// Use of this source code is governed by the GPL 3.0

package main

import (
	"fmt"
	"io"
)

// generates Append()

// I like these functions the best.
func (msg *MsgName) simpleAppend(w io.Writer, FRUIT, APPLES, APPLE string) string {
	LOCK := msg.getLockname("x")

	funcdef := "func (x *" + FRUIT + ") Append(y *" + APPLE + ") *" + APPLE

	// log.Printf("\t\t(x %s) APPEND(%s)\n", FRUIT, APPLE)
	// append -- no check at all
	fmt.Fprintln(w, "// a Append() shortcut (that does Clone() with a mutex) notsure if it really works")
	fmt.Fprintln(w, funcdef, "{")
	fmt.Fprintln(w, "	"+LOCK+".Lock()")
	fmt.Fprintln(w, "	defer "+LOCK+".Unlock()")
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, "	z := proto.Clone(y).(*"+APPLE+")")
	fmt.Fprintln(w, "	x."+APPLES+" = append(x."+APPLES+", z)")
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, "	return z")
	fmt.Fprintln(w, "}")
	fmt.Fprintln(w, "")

	return funcdef
}

// Unique Append. rejects Append() if value is already defined
// compares the field 'COLOR' in the STRUCT with VARNAME
// that's not the right description above, but whatever, you get the idea
func (msg *MsgName) simpleAppendBy(w io.Writer, STRUCT, FUNCNAME, STRUCTVAR, VARNAME, VARTYPE string) string {
	LOCK := msg.getLockname("x")

	funcdef := "func (x *" + STRUCT + ") " + FUNCNAME + "(y *" + VARTYPE + ") bool"

	fmt.Fprintln(w, funcdef, "{")
	fmt.Fprintln(w, "	"+LOCK+".Lock()")
	fmt.Fprintln(w, "	defer "+LOCK+".Unlock()")
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, "	for _, p := range x."+STRUCTVAR+" {")
	fmt.Fprintln(w, "		if p."+VARNAME+" == y."+VARNAME+" {")
	fmt.Fprintln(w, "			return false")
	fmt.Fprintln(w, "		}")
	fmt.Fprintln(w, "	}")
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, "	x."+STRUCTVAR+" = append(x."+STRUCTVAR+", proto.Clone(y).(*"+VARTYPE+"))")
	fmt.Fprintln(w, "	return true")
	fmt.Fprintln(w, "}")
	fmt.Fprintln(w, "")

	return funcdef
}

// I like these functions the best.
func (msg *MsgName) simpleClone(w io.Writer, FRUIT, APPLES, APPLE string) string {
	LOCK := msg.getLockname("x")

	funcdef := "func (x *" + FRUIT + ") Append(y *" + APPLE + ") *" + APPLE

	// log.Printf("\t\t(x %s) CLONE(%s)\n", FRUIT, APPLE)
	// append -- no check at all
	fmt.Fprintln(w, "// a Clone() shortcut (with a mutex). notsure if it really works")
	fmt.Fprintln(w, funcdef, "{")
	fmt.Fprintln(w, "	"+LOCK+".Lock()")
	fmt.Fprintln(w, "	defer "+LOCK+".Unlock()")
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, "	z := proto.Clone(y).(*"+APPLE+")")
	fmt.Fprintln(w, "	x."+APPLES+" = append(x."+APPLES+", z)")
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, "	return z")
	fmt.Fprintln(w, "}")
	fmt.Fprintln(w, "")

	return funcdef
}

// Unique Append. rejects Append() if value is already defined
// compares the field 'COLOR' in the STRUCT with VARNAME
// that's not the right description above, but whatever, you get the idea
func (msg *MsgName) addCloneBy(w io.Writer, STRUCT, FUNCNAME, STRUCTVAR, VARNAME, VARTYPE string) string {
	LOCK := msg.getLockname("x")

	funcdef := "func (x *" + STRUCT + ") " + FUNCNAME + "(y *" + VARTYPE + ") bool"

	fmt.Fprintln(w, funcdef, "{")
	fmt.Fprintln(w, "	"+LOCK+".Lock()")
	fmt.Fprintln(w, "	defer "+LOCK+".Unlock()")
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, "	for _, p := range x."+STRUCTVAR+" {")
	fmt.Fprintln(w, "		if p."+VARNAME+" == y."+VARNAME+" {")
	fmt.Fprintln(w, "			return false")
	fmt.Fprintln(w, "		}")
	fmt.Fprintln(w, "	}")
	fmt.Fprintln(w, "")
	fmt.Fprintln(w, "	x."+STRUCTVAR+" = append(x."+STRUCTVAR+", proto.Clone(y).(*"+VARTYPE+"))")
	fmt.Fprintln(w, "	return true")
	fmt.Fprintln(w, "}")
	fmt.Fprintln(w, "")

	return funcdef
}