#!/usr/bin/env perl

# vim: set ts=4 sw=4 tw=0:
# vim: set expandtab:

use warnings;
use strict;
use Time::HiRes qw(time);
use File::Basename;

use Mojolicious::Lite -signatures;
use Mojo::SQLite;
use HTML::Escape qw/escape_html/;

my $dbFile       = "combined.db";
my $sqlPortsFile = "/usr/local/share/sqlports";

my ( $sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $isdst ) =
  localtime();
$year = $year + 1900;

if ( $^O eq "openbsd" ) {
    require OpenBSD::Pledge;
    require OpenBSD::Unveil;

    OpenBSD::Unveil::unveil( "/",          "" )    or die;
    OpenBSD::Unveil::unveil( $0,           "r" )   or die;
    OpenBSD::Unveil::unveil( dirname($0),  "rwc" ) or die;
    OpenBSD::Unveil::unveil( "/usr/local", "r" )   or die;

    OpenBSD::Pledge::pledge(qw(stdio dns inet rpath proc flock wpath cpath))
      or die;
}
else {
    $sqlPortsFile = "/tmp/openbsd_app/stable/share/sqlports";
}

my $mtime = ( stat($dbFile) )[9];
$mtime = scalar localtime $mtime;

helper sqlite => sub {
    state $sql = Mojo::SQLite->new;
    $sql->from_filename( $dbFile, { ReadOnly => 1, no_wal => 1 } );
    $sql->on(
        connection => sub {
            my ( $sql, $dbh ) = @_;
            $dbh->do("pragma journal_mode=DELETE");
        }
    );
    return $sql;
};

helper sqlports => sub {
    state $sql = Mojo::SQLite->new;
    $sql->from_filename( $sqlPortsFile, { ReadOnly => 1, no_wal => 1 } );
    $sql->on(
        connection => sub {
            my ( $sql, $dbh ) = @_;
            $dbh->do("pragma journal_mode=DELETE");
        }
    );
    return $sql;
};

my $query = q{
    SELECT
	  FULLPKGNAME,
	  FULLPKGPATH,
	  COMMENT,
	  DESCRIPTION,
      HOMEPAGE,
	  highlight(%s, 2, '**', '**') AS COMMENT_MATCH,
	  highlight(%s, 3, '**', '**') AS DESCR_MATCH
    FROM %s
    WHERE %s MATCH ? ORDER BY rank;
};

my $depTreeQuery = q{
  WITH RECURSIVE
  under_port(name,level) AS (
    VALUES(? ,0)
    UNION ALL
    SELECT _depends.fulldepends, under_port.level+1
      FROM
        _depends
      JOIN _paths ON _paths.id=_depends.fullpkgpath
      join under_port ON _paths.fullpkgpath = under_port.name
      where
        _depends.type IN (0, 1)
     ORDER BY 2 DESC
  )
SELECT substr('..........',1,level*3) || name FROM under_port;
};

my $depQuery = q{
  WITH RECURSIVE
  under_port(name,level) AS (
    VALUES(? ,0)
    UNION ALL
    SELECT _depends.fulldepends, under_port.level+1
      FROM
        _depends
      JOIN _paths ON _paths.id=_depends.fullpkgpath
      join under_port ON _paths.fullpkgpath = under_port.name
      where
        _depends.type IN (0, 1)
     ORDER BY 2 DESC
  )
SELECT distinct(name) FROM under_port;
};

my $reverseQuery = q{
  WITH RECURSIVE d (fullpkgpath, dependspath, type) as 
    (select root.fullpkgpath, root.dependspath, root.type 
        from _canonical_depends root 
        join _paths  
            on root.dependspath=_paths.canonical 
        join _paths p2  
            on p2.fullpkgpath = ? and p2.id=_paths.pkgpath
        where root.type!=3             
    union                                      
        select child.fullpkgpath, child.dependspath, child.type 
            from d parent, _canonical_depends child   
        where parent.fullpkgpath=child.dependspath and child.type!=3)
            select distinct _paths.fullpkgpath from d                                           
        join _paths  
            on _paths.id=d.fullpkgpath 
        order by _paths.fullpkgpath;
};

my $pathQuery = q{
    SELECT
	  FULLPKGNAME,
	  FULLPKGPATH,
	  COMMENT,
	  DESCRIPTION,
      HOMEPAGE
    FROM %s
    WHERE FULLPKGPATH = ?;
};

my $title = "OpenBSD.app";
my $descr = "OpenBSD package search";

sub markdown ($str) {
    $str = escape_html($str);
    $str =~ s/\*\*(\w+)\*\*/<strong>$1<\/strong>/g;
    $str =~ s/\n/<br \/>/g;
    return $str;
}

sub to_md ($results) {
    foreach my $result (@$results) {
        $result->{DESCR_MATCH}   = markdown( $result->{DESCR_MATCH} );
        $result->{COMMENT_MATCH} = markdown( $result->{COMMENT_MATCH} );
    }

}

sub set_query ($is_current) {
    if ($is_current) {
        return sprintf( $query, ("current_ports_fts") x 4 );
    }

    return sprintf( $query, ("stable_ports_fts") x 4 );
}

sub fix_fts ($s) {
    return "" unless defined $s;
    $s =~ s/[^\w]/ /g;
    $s =~ s/^\s+//g;
    $s =~ s/\s+$//g;
    return $s;
}

get '/reverse' => sub ($c) {
    my $v = $c->validation;

    $c->stash( title => $title );
    $c->stash( descr => $descr );
    $c->stash( mtime => $mtime );
    $c->stash( year  => (localtime)[5] + 1900 );

    my $search = $c->param('name');
    my $raw    = $c->param('raw');
    my $db     = $c->sqlports->db;

    if ( defined $raw && $raw ne "" ) {
        $c->render( text => $db->query( $reverseQuery, $search )->text );
    }
    else {
        $c->render(
            template => 'reverse',
            name     => $search,
            list     => $db->query( $reverseQuery, $search )->text
        );
    }
};

get '/flat-deps' => sub ($c) {
    my $v = $c->validation;

    $c->stash( title => $title );
    $c->stash( descr => $descr );
    $c->stash( mtime => $mtime );
    $c->stash( year  => (localtime)[5] + 1900 );

    my $search = $c->param('name');
    my $raw    = $c->param('raw');
    my $db     = $c->sqlports->db;

    if ( defined $raw && $raw ne "" ) {
        $c->render( text => $db->query( $depQuery, $search )->text );
    }
    else {
        $c->render(
            template => 'flat-deps',
            name     => $search,
            tree     => $db->query( $depQuery, $search )->text
        );
    }
};

get '/tree' => sub ($c) {
    my $v = $c->validation;

    $c->stash( title => $title );
    $c->stash( descr => $descr );
    $c->stash( mtime => $mtime );
    $c->stash( year  => (localtime)[5] + 1900 );

    my $search = $c->param('name');
    my $raw    = $c->param('raw');
    my $db     = $c->sqlports->db;

    if ( defined $raw && $raw ne "" ) {
        $c->render( text => $db->query( $depTreeQuery, $search )->text );
    }
    else {
        $c->render(
            template => 'tree',
            name     => $search,
            tree     => $db->query( $depTreeQuery, $search )->text
        );
    }
};

get '/path/*' => sub ($c) {
    my $p = $c->req->url->path;
    $p =~ s/^\/path\///;

    my $current = $c->param('current');

    $c->stash( title => $title );
    $c->stash( descr => $descr );
    $c->stash( mtime => $mtime );
    $c->stash( year  => (localtime)[5] + 1900 );

    my $db = $c->sqlite->db;
    my $q  = sprintf( $pathQuery,
        defined($current) ? "current_ports_fts" : "stable_ports_fts" );

    $c->render(
        template => 'path',
        name     => $p,
        info     => $db->query( $q, $p )->hash
    );
};

get '/' => sub ($c) {
    my $v = $c->validation;

    my $search = fix_fts $c->param('search');

    my $current = $c->param('current');
    my $link    = defined($current) ? "?current=on" : "";
    my $format  = $c->param('format') || "";

    $c->stash( current => $current );
    $c->stash( title   => $title );
    $c->stash( descr   => $descr );
    $c->stash( mtime   => $mtime );
    $c->stash( year    => (localtime)[5] + 1900 );

    if ( defined $search && $search ne "" ) {
        my $db = $c->sqlite->db;

        my $q       = set_query( defined $current );
        my $start   = time();
        my $results = $db->query( $q, $search )->hashes;
        my $end     = time();
        my $elapsed = sprintf( "%2f\n", $end - $start );

        to_md($results);

        if ( $format eq "json" ) {
            $c->render( json => $results );
        }
        else {
            $c->render(
                template => 'results',
                search   => $search,
                elapsed  => $elapsed,
                link     => $link,
                results  => $results
            );
        }
    }
    else {
        $c->render( template => 'index' );
    }
};

get '/pico.classless.css' => sub ($c) {
    $c->reply->static('pico.classless.css');
};

get '/openbsd-app-opensearch.xml' => sub ($c) {
    $c->res->headers->content_type('application/opensearchdescription+xml');
    $c->render(
        template => 'openbsd-app-opensearch',
        format   => 'xml',
        title    => $title,
        descr    => $descr
    );
};

app->start;
__DATA__
@@ layouts/default.html.ep
<!doctype html>
<html class="no-js" lang="en">
  <head>
    <title><%= $title %></title>
    <meta charset="utf-8">
    <meta http-equiv="x-ua-compatible" content="ie=edge">
    <meta name="description" content="<%= $descr %>">
    <link
      rel="search"
      type="application/opensearchdescription+xml"
      title="<%= $title %>"
      href="/openbsd-app-opensearch.xml" />
    <link rel="stylesheet" href="/pico.classless.css">
    <style>
    header {
        padding: 0px !important;
    }
    main {
        padding: 0px !important;
    }
    .nowrap {
        white-space: nowrap;
    }
    html {
      background-color: #ffffea;
    }
    #search {
      background-color: #fff;
    }

    table {
      background-color: #fff;
      border: 1px solid #dedeff;
    }

    table th {
      background-color: #dedeff;
    }
    .none {
      display: none;
    }
    </style>
  </head>
  <body>
  <header>
      <h3><a href="/">OpenBSD.app - search packages</a></h3>
      %= form_for '/' => begin
        %= label_for search => 'Search', class => 'none'
        %= search_field 'search', id => 'search', placeholder => 'Search', value => undef
        %= check_box 'current', id => 'current', role => "switch"
        %= label_for current => "Search -current"
        (<%= $mtime %>)
      % end
</header>
<main>
  <%== content %>
</main>
    <footer>
      <p>
        <a href="https://github.com/qbit/openbsd.app">OpenBSD.app</a> © 2022-<%= $year %> - proudly hosted on <a href="https://openbsd.amsterdam/">obsd.ams</a>!
      </p>
      <p>
        Made with <3 by <a rel="nofollow me" href="https://mammothcirc.us/@qbit">qbit</a>
        |
        <a rel="payment" href="https://www.buymeacoffee.com/qbit">Buy me a coffee!</a>
      </p>
    </footer>
  </body>
</html>

@@ tree.html.ep
% layout 'default';
<div>
  <h3>Dependency tree for: <%= $name %></h3>
  <p>
    <pre><%= $tree %></pre>
  </p>
</div>

@@ flat-deps.html.ep
% layout 'default';
<div>
  <h3>Flat dependency list for: <%= $name %></h3>
  <p>
    <pre><%= $tree %></pre>
  </p>
</div>

@@ path.html.ep
% layout 'default';
<div>
  <h3>Info for: <%= $name %></h3>
  <p>
  % if ($info->{FULLPKGNAME} ne "") {
  <table class="results" role="grid">
    <thead>
      <tr>
        <th class="nowrap">Package Name</th>
        <th>Details</th>
	<th>Comment</th>
	<th>Description</th>
      </tr>
    </thead>
    <tr>
      <td class="nowrap"><%= $info->{FULLPKGNAME} %></td>
      <td class="nowrap">
        <ul>
            <li>
                <%= $info->{FULLPKGPATH} %>
            </li>
            <ul>
                <li>
                    % if (defined($info->{HOMEPAGE})) {
                    <a
                      href="<%= $info->{HOMEPAGE} %>"
                      title="Home page for <%= $info->{FULLPKGNAME} %>"
                    >Home page</a>
                    % } else {
                    <s>Home page</s>
                    % }
                </li>
                <li>
                    <a href="/tree?name=<%= $info->{FULLPKGPATH} %>"
                      title="Dependencies for <%= $info->{FULLPKGNAME} %>"
                    >Dep Tree</a>
		    (<a href="/flat-deps?name=<%= $info->{FULLPKGPATH} %>"
		      title="Flat dependency list for <%= $info->{FULLPKGNAME} %>"
		    >list</a>)
                </li>
		% my $clean_name = $info->{FULLPKGPATH};
		% $clean_name =~ s/^(.*),.*$/$1/;
                <li>
                    <a href="/reverse?name=<%= $info->{FULLPKGPATH} %>"
                      title="Reverse dependencies for <%= $info->{FULLPKGNAME} %>"
                    >Reverse Dep List</a>
                </li>
                <li>
                    <a
                      href="https://cvsweb.openbsd.org/cgi-bin/cvsweb/ports/<%= $clean_name %>"
                      title="CVSWeb page for <%= $info->{FULLPKGNAME} %>"
                    >CVS Web</a>
                </li>
                <li>
                    <a
                      href="https://github.com/openbsd/ports/tree/master/<%= $clean_name %>"
                      title="OpenBSD GitHub page for <%= $info->{FULLPKGNAME} %>"
                    >GitHub</a>
                </li>
            </ul>
        </ul>
      </td>
      <td class=""><%== $info->{COMMENT} %></td>
      <td><%== $info->{DESCRIPTION} %></td>
    </tr>
  </table>
  % } else {
  Nothing found.
  % }
  </p>
</div>


@@ reverse.html.ep
% layout 'default';
<div>
  <h3>Reverse dependency list for: <%= $name %></h3>
  <p>
    <pre><%= $list %></pre>
  </p>
</div>

@@ results.html.ep
% layout 'default';
<p>
  Found <b><%= @$results %></b> results for '<b><%= $search %></b>' in <%= $elapsed %> seconds.<br />
  <a href="/?search=<%= $search %>&format=json">View as JSON</a>
</p>
  <table class="results" role="grid">
    <thead>
      <tr>
        <th class="nowrap">Package Name</th>
        <th>Details</th>
	<th>Comment</th>
	<th>Description</th>
      </tr>
    </thead>
% foreach my $result (@$results) {
    <tr>
      <td class="nowrap"><%= $result->{FULLPKGNAME} %></td>
      <td class="nowrap">
        <ul>
            <li>
                <%= $result->{FULLPKGPATH} %>
                <a href="/path/<%= $result->{FULLPKGPATH} . $link %>" title="Direct link to package info">🔗</a>
            </li>
            <ul>
                <li>
                    % if (defined($result->{HOMEPAGE})) {
                    <a
                      href="<%= $result->{HOMEPAGE} %>"
                      title="Home page for <%= $result->{FULLPKGNAME} %>"
                    >Home page</a>
                    % } else {
                    <s>Home page</s>
                    % }
                </li>
                <li>
                    <a href="/tree?name=<%= $result->{FULLPKGPATH} %>"
                      title="Dependencies for <%= $result->{FULLPKGNAME} %>"
                    >Dep Tree</a>
		    (<a href="/flat-deps?name=<%= $result->{FULLPKGPATH} %>"
		      title="Flat dependency list for <%= $result->{FULLPKGNAME} %>"
		    >list</a>)
                </li>
		% my $clean_name = $result->{FULLPKGPATH};
		% $clean_name =~ s/^(.*),.*$/$1/;
                <li>
                    <a href="/reverse?name=<%= $result->{FULLPKGPATH} %>"
                      title="Reverse dependencies for <%= $result->{FULLPKGNAME} %>"
                    >Reverse Dep List</a>
                </li>
                <li>
                    <a
                      href="https://cvsweb.openbsd.org/cgi-bin/cvsweb/ports/<%= $clean_name %>"
                      title="CVSWeb page for <%= $result->{FULLPKGNAME} %>"
                    >CVS Web</a>
                </li>
                <li>
                    <a
                      href="https://github.com/openbsd/ports/tree/master/<%= $clean_name %>"
                      title="OpenBSD GitHub page for <%= $result->{FULLPKGNAME} %>"
                    >GitHub</a>
                </li>
            </ul>
        </ul>
      </td>
      <td class=""><%== $result->{COMMENT_MATCH} %></td>
      <td><%== $result->{DESCR_MATCH} %></td>
    </tr>
% }
  </table>

@@ index.html.ep
% layout 'default';
<p>Welcome! Default search queries OpenBSD 7.6 package sets.</p>

@@ exception.html.ep
% layout 'default';
<h2>Invalid search</h2>

@@ openbsd-app-opensearch.xml.ep
<?xml version="1.0" encoding="utf-8"?>
<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/"
                       xmlns:moz="http://www.mozilla.org/2006/browser/search/">
  <ShortName><%= $title %></ShortName>
  <Description><%= $descr %></Description>
  <InputEncoding>UTF-8</InputEncoding>
  <Image width="32" height="32" type="image/x-icon">https://openbsd.org/favicon.ico</Image>
  <Url type="text/html" method="GET" template="https://openbsd.app/?search={searchTerms}"/>
  <moz:SearchForm>https://openbsd.app/</moz:SearchForm>
</OpenSearchDescription>

@@ favicon.ico (base64)
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AAAAAAAoAQAAPhEAACgAAAAgAAAAQAAAAAEACAAAAAAAgAQAAAAAAAAAAAAAAAEAAAAAAAAAAAAA
AACAAACAAAAAgIAAgAAAAIAAgACAgAAAwMDAAICAgAAAAP8AAP8AAAD//wD/AAAA/wD/AP//AAD/
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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP//////////
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