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// file : brep/package-version-search.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <brep/package-version-search>
#include <string>
#include <memory> // make_shared(), shared_ptr
#include <cstddef> // size_t
#include <xml/serializer>
#include <odb/database.hxx>
#include <odb/transaction.hxx>
#include <web/xhtml>
#include <web/module>
#include <web/mime-url-encoding>
#include <brep/page>
#include <brep/options>
#include <brep/package>
#include <brep/package-odb>
#include <brep/shared-database>
using namespace std;
using namespace cli;
using namespace odb::core;
namespace brep
{
void package_version_search::
init (scanner& s)
{
MODULE_DIAG;
options_ = make_shared<options::package_version_search> (
s, unknown_mode::fail, unknown_mode::fail);
db_ = shared_database (options_->db_host (), options_->db_port ());
}
template <typename T>
static inline query<T>
search_params (const string& n, const string& q)
{
using query = query<T>;
return "(" +
(q.empty ()
? query ("NULL")
: "plainto_tsquery (" + query::_val (q) + ")") +
"," +
query::_val (n) +
")";
}
void package_version_search::
handle (request& rq, response& rs)
{
using namespace xml;
using namespace web;
using namespace web::xhtml;
MODULE_DIAG;
const string& name (*rq.path ().rbegin ());
params::package_version_search pr;
try
{
param_scanner s (rq.parameters ());
pr = params::package_version_search (
s, unknown_mode::fail, unknown_mode::fail);
}
catch (const unknown_argument& e)
{
throw invalid_request (400, e.what ());
}
const char* ident ("\n ");
const string title ("Package " + name);
serializer s (rs.content (), title);
s << HTML
<< HEAD
<< TITLE << title << ~TITLE
<< CSS_STYLE << ident
<< A_STYLE () << ident
<< DIV_PAGER_STYLE () << ident
<< "#name {font-size: xx-large; font-weight: bold;}" << ident
<< "#summary {font-size: x-large; margin: 0.2em 0 0;}" << ident
<< ".url, .email {font-size: medium;}" << ident
<< ".comment {font-size: small;}" << ident
<< "#description {margin: 0.5em 0 0;}" << ident
<< ".tags {margin: 0.3em 0 0;}" << ident
<< "#versions {font-size: x-large; margin: 0.5em 0 0;}" << ident
<< ".package_version {margin: 0.5em 0 0;}" << ident
<< ".version {font-size: x-large;}" << ident
<< ".priority {margin: 0.3em 0 0;}" << ident
<< "form {margin: 0.5em 0 0 0;}"
<< ~CSS_STYLE
<< ~HEAD
<< BODY
<< DIV(ID="name") << name << ~DIV;
const string& sq (pr.query ()); // Search query.
size_t rop (options_->results_on_page ());
transaction t (db_->begin ());
shared_ptr<package> p;
{
latest_package lp;
if (!db_->query_one<latest_package> (
query<latest_package>(
"(" + query<latest_package>::_val (name) + ")"), lp))
{
throw invalid_request (404, "Package '" + name + "' not found");
}
p = db_->load<package> (lp.id);
}
s << DIV(ID="summary") << p->summary << ~DIV
<< DIV_URL (p->url)
<< DIV_EMAIL (p->email);
if (p->description)
s << DIV(ID="description") << *p->description << ~DIV;
s << DIV_TAGS (p->tags);
size_t pvc (
db_->query_value<package_count> (
search_params<package_count> (name, sq)));
s << DIV(ID="versions") << "Versions (" << pvc << ")" << ~DIV
<< FORM_SEARCH (sq);
auto r (
db_->query<package_search_rank> (
search_params<package_search_rank> (name, sq) +
"ORDER BY rank DESC, version_epoch DESC, "
"version_canonical_upstream DESC, version_revision DESC" +
"OFFSET" + to_string (pr.page () * rop) +
"LIMIT" + to_string (rop)));
for (const auto& pr: r)
{
shared_ptr<package> p (db_->load<package> (pr.id));
const string& v (p->version.string ());
s << DIV(CLASS="package_version")
<< DIV(CLASS="version")
<< A
<< HREF << "/go/" << mime_url_encode (name) << "/" << v << ~HREF
<< v
<< ~A
<< ~DIV
<< DIV_PRIORITY (p->priority)
<< DIV_LICENSES (p->license_alternatives)
<< DIV(CLASS="dependencies")
<< "Dependencies: " << p->dependencies.size ()
<< ~DIV
<< ~DIV;
}
t.commit ();
string u (mime_url_encode (name));
if (!sq.empty ())
u += "?q=" + mime_url_encode (sq);
s << DIV_PAGER (pr.page (), pvc, rop, options_->pages_in_pager (), u)
<< ~BODY
<< ~HTML;
}
}
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