#!perl -w
# Copyright (C) 2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
use strict;
use v5.10.1;
use Test::More;
use PublicInbox::TestCommon;
use PublicInbox::Eml;
use_ok 'PublicInbox::LeiToMail';
my $from = "Content-Length: 10\nSubject: x\n\nFrom hell\n";
my $noeol = "Subject: x\n\nFrom hell";
my $crlf = $noeol;
$crlf =~ s/\n/\r\n/g;
my $kw = [qw(seen answered flagged)];
for my $mbox (qw(mboxrd mboxo mboxcl mboxcl2)) {
	my $m = "eml2$mbox";
	my $cb = PublicInbox::LeiToMail->can($m);
	my $s = $cb->(PublicInbox::Eml->new($from), $kw);
	is(substr($$s, -1, 1), "\n", "trailing LF in normal $mbox");
	my $eml = PublicInbox::Eml->new($s);
	is($eml->header('Status'), 'R', "Status: set by $m");
	is($eml->header('X-Status'), 'AF', "X-Status: set by $m");
	if ($mbox eq 'mboxcl2') {
		like($eml->body_raw, qr/^From /, "From not escaped $m");
	} else {
		like($eml->body_raw, qr/^>From /, "From escaped once by $m");
	}
	my @cl = $eml->header('Content-Length');
	if ($mbox =~ /mboxcl/) {
		is(scalar(@cl), 1, "$m only has one Content-Length header");
		is($cl[0] + length("\n"),
			length($eml->body_raw), "$m Content-Length matches");
	} else {
		is(scalar(@cl), 0, "$m clobbered Content-Length");
	}
	$s = $cb->(PublicInbox::Eml->new($noeol), $kw);
	is(substr($$s, -1, 1), "\n",
		"trailing LF added by $m when original lacks EOL");
	$eml = PublicInbox::Eml->new($s);
	if ($mbox eq 'mboxcl2') {
		is($eml->body_raw, "From hell\n", "From not escaped by $m");
	} else {
		is($eml->body_raw, ">From hell\n", "From escaped once by $m");
	}
	$s = $cb->(PublicInbox::Eml->new($crlf), $kw);
	is(substr($$s, -2, 2), "\r\n",
		"trailing CRLF added $m by original lacks EOL");
	$eml = PublicInbox::Eml->new($s);
	if ($mbox eq 'mboxcl2') {
		is($eml->body_raw, "From hell\r\n", "From not escaped by $m");
	} else {
		is($eml->body_raw, ">From hell\r\n", "From escaped once by $m");
	}
	if ($mbox =~ /mboxcl/) {
		is($eml->header('Content-Length') + length("\r\n"),
			length($eml->body_raw), "$m Content-Length matches");
	} elsif ($mbox eq 'mboxrd') {
		$s = $cb->($eml, $kw);
		$eml = PublicInbox::Eml->new($s);
		is($eml->body_raw,
			">>From hell\r\n\r\n", "From escaped again by $m");
	}
}

done_testing;