#!/usr/bin/perl
#
# DW::Controller::Dev
#
# This controller is for tiny pages related to dev work
#
# Authors:
#      Afuna <coder.dw@afunamatata.com>
#
# Copyright (c) 2010-2011 by Dreamwidth Studios, LLC.
#
# This program is free software; you may redistribute it and/or modify it under
# the same terms as Perl itself. For a copy of the license, please reference
# 'perldoc perlartistic' or 'perldoc perlgpl'.
#

package DW::Controller::Dev;

use strict;
use warnings;
use DW::Routing;
use DW::SiteScheme;
use DW::Controller;
use DW::FormErrors;
use DW::Formats;

use LJ::JSON;

DW::Routing->register_string( '/dev/embeds',      \&embeds_handler,      app => 1 );
DW::Routing->register_string( '/dev/formats',     \&formats_handler,     app => 1 );
DW::Routing->register_string( '/dev/style-guide', \&style_guide_handler, app => 1 );

if ($LJ::IS_DEV_SERVER) {
    DW::Routing->register_string( '/dev/tests/index', \&tests_index_handler, app => 1 );
    DW::Routing->register_regex( '^/dev/tests/([^/]+)(?:/(.*))?$', \&tests_handler, app => 1 );

    DW::Routing->register_string(
        '/dev/testhelper/jsondump', \&testhelper_json_handler,
        app    => 1,
        format => "json"
    );
}

sub style_guide_handler {
    my ( $ok, $rv ) = controller( anonymous => 1 );
    return $rv unless $ok;

    my $authas_form =
          "<form action='"
        . LJ::create_url()
        . "' method='get'>"
        . LJ::make_authas_select( LJ::load_user("system"), { authas => "", foundation => 1 } )
        . "</form>";

    # errors
    my $errors = DW::FormErrors->new();
    $errors->add_string( "has_error", "Some error here (added by controller)" );

    return DW::Template->render_template(
        'dev/style-guide.tt',
        {
            authas_form => $authas_form,
            errors      => $errors,
        }
    );
}

sub formats_handler {
    my ( $ok, $rv ) = controller( anonymous => 1 );
    return $rv unless $ok;

    my @active_formats;
    my @other_formats;
    my %aliases;

    my @format_ids = sort { $a cmp $b } ( keys %DW::Formats::formats );
    foreach (@format_ids) {
        my $id     = $_;
        my $format = $DW::Formats::formats{$id};
        if ( $id ne $format->{id} ) {

            # It's an alias.
            $aliases{ $format->{id} } //= [];
            push @{ $aliases{ $format->{id} } }, $id;
        }
        else {
            if ( grep { $id eq $_ } @DW::Formats::active_formats ) {
                push @active_formats, $format;
            }
            else {
                push @other_formats, $format;
            }
        }
    }

    return DW::Template->render_template(
        'dev/formats.tt',
        {
            active_formats => \@active_formats,
            other_formats  => \@other_formats,
            aliases        => \%aliases,
        }
    );
}

sub embeds_handler {
    my ( $ok, $rv ) = controller( anonymous => 1 );
    return $rv unless $ok;

    my $embed_domains = LJ::Hooks::run_hook('list_iframe_embed_domains');
    my $domain_groups = {};

    my $tld = sub {
        my ($dom) = @_;
        my $idx = ( $dom =~ /\.com?\.\w+$/ ) ? -3 : -2;
        return [ split /\./, $dom ]->[$idx];
    };

    foreach my $dom (@$embed_domains) {
        my $key;
        my $chr_start = substr( uc $tld->($dom), 0, 1 );

        if ( $chr_start =~ /\d/ ) {
            $key = '0 - 9';
        }
        elsif ( $chr_start =~ /[A-Z]/ ) {
            $key = $chr_start;
        }
        else {
            $key = '(Other)';
        }

        $domain_groups->{$key} //= [];
        push @{ $domain_groups->{$key} }, $dom;
    }

    return DW::Template->render_template( 'dev/embeds.tt', { embed_domains => $domain_groups } );
}

sub tests_index_handler {
    my ($opts) = @_;

    my $r = DW::Request->get;

    DW::SiteScheme->set_for_request('global');
    return DW::Template->render_template(
        "dev/tests-all.tt",
        {
            all_tests =>
                [ map { $_ =~ m!tests/([^/]+)\.js!; } glob("$LJ::HOME/views/dev/tests/*.js") ]
        }
    );
}

sub tests_handler {
    my ( $opts, $test, $lib ) = @_;

    my $r = DW::Request->get;

    if ( !defined $lib ) {
        return $r->redirect("$LJ::SITEROOT/dev/tests/$test/");
    }
    elsif ( !$lib ) {
        DW::SiteScheme->set_for_request('global');
        return DW::Template->render_template(
            "dev/tests-all.tt",
            {
                test => $test,
            }
        );
    }

    my @includes;
    my $testcontent = eval { DW::Template->template_string("dev/tests/${test}.js") } || "";
    if ($testcontent) {
        $testcontent =~ m#/\*\s*INCLUDE:\s*(.*?)\*/#s;
        my $match = $1 || "";
        for my $res ( split( /\n+/, $match ) ) {

            # skip things that don't look like names (could just be an empty line)
            next unless $res =~ /\w+/;

            # remove the library label
            $res =~ s/(\w+)://;

            # skip if we specify a library that's different from our current library
            next if $1 && $1 ne $lib;

            push @includes, LJ::trim($res);
        }
    }

    my $testhtml = eval { DW::Template->template_string("dev/tests/${test}.html") }
        || "<!-- no html template -->";

    # force a site scheme which only shows the bare content
    # but still prints out resources included using need_res
    DW::SiteScheme->set_for_request('global');

    # we don't validate the test name, so be careful!
    return DW::Template->render_template(
        "dev/tests.tt",
        {
            testname => $test,
            testlib  => $lib,
            testhtml => $testhtml,
            tests    => $testcontent,
            includes => \@includes,
        }
    );
}

sub testhelper_json_handler {
    my $r = DW::Request->get;

    my $undef;

    my $hash = {
        string  => "string",
        num     => 42,
        numdot  => "42.",
        array   => [ "a", "b", 2 ],
        hash    => { a => "apple", b => "bazooka" },
        nil     => undef,
        nilvar  => $undef,
        blank   => "",
        zero    => 0,
        symbols => qq{"',;:},
        html    => qq{<a href="#">blah</a>},
        utf8    => "テスト",
    };

    my $array = [
        7, "string", "123", "123.", { "foo" => "bar" },
        undef, $undef, "", 0, qq{"',;:}, qq{<a href="#">blah</a>}, "テスト"
    ];

    if ( $r->method eq "GET" ) {
        my $args = $r->get_args;

        my $ret;
        if ( $args->{output} eq "hash" ) {
            $ret = $hash;
        }
        elsif ( $args->{output} eq "array" ) {
            $ret = $array;
        }

        if ( $args->{function} eq "js_dumper" ) {
            $r->print( to_json($ret) );
        }
        elsif ( $args->{function} eq "json" ) {
            $r->print( to_json($ret) );
        }

        return $r->OK;
    }

    # FIXME: handle post as well
}
1;