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#include "commands.h"
#include <boost/format.hpp>
#include <boost/algorithm/string/join.hpp>
#include <boost/bind.hpp>
#include <boost/spirit/include/qi.hpp>
#include <boost/fusion/include/std_pair.hpp>
#include <iostream>
namespace qi = boost::spirit::qi;
std::vector<std::string> Commands::ls() {
if(args.size() != 2) {
throw CommandException("usage: ls DIR");
}
MusicDirectory::p dir = music::get_directory(args[1]);
if(!dir) {
throw CommandException("no such directory");
}
std::cout << dir->path << std::endl;
std::vector<std::string> result;
for(MusicDirectory::PathListings::iterator it = dir->directories.begin(); it != dir->directories.end(); it++) {
std::string rel_path = it->string().substr(music::root_directory.string().size());
result.push_back(rel_path);
}
for(MusicDirectory::PathListings::iterator it = dir->tracks.begin(); it != dir->tracks.end(); it++) {
std::string rel_path = it->string().substr(music::root_directory.string().size());
result.push_back(rel_path);
}
return result;
}
typedef std::map<std::string, std::string> stringmap;
static bool find_parse(std::string str, stringmap& foo) {
typedef std::string::const_iterator Iterator;
Iterator begin = str.begin();
Iterator end = str.end();
return qi::parse(begin, end,
// pairs wrapped in "quotes"
(('"' >> +(qi::char_ - ':') >> ':' >> +(qi::char_ - '"') >> '"') |
// simple key:value pairs
(+(qi::char_ - ':' - ' ') >> ':' >> +(qi::char_ - ' ')))
// skip spaces between pairs
% +qi::char_(' '),
foo) && begin == end;
}
std::vector<std::string> Commands::find() {
if(args.size() < 2) {
throw CommandException("usage: find SEARCH");
}
stringmap find_args;
args.erase(args.begin());
std::string search = boost::algorithm::join(args, " ");
std::vector<MusicListing::p> ml;
if(find_parse(search, find_args)) {
ml = music::find(find_args);
} else {
ml = music::find(search);
}
if(!ml.size()) {
throw CommandException("no results");
}
std::vector<std::string> result;
for(std::vector<MusicListing::p>::iterator it = ml.begin(); it != ml.end(); it++) {
result.push_back((*it)->path.string());
}
return result;
}
std::vector<std::string> Commands::update() {
if(args.size() != 2) {
throw CommandException("usage: update DIR");
}
io_service.post(boost::bind(music::begin_update, args[1]));
std::vector<std::string> v;
return v;
}
Commands::Commands(boost::asio::io_service& io_service_, std::vector<std::string>& args_) : io_service(io_service_), args(args_) {
handlers["ls"] = &Commands::ls;
handlers["find"] = &Commands::find;
handlers["update"] = &Commands::update;
}
/** Invokes the command and returns its results.
* Throws CommandException if the command isn't found.
*/
std::vector<std::string> Commands::operator()() {
assert(args.size());
Handler h = handlers[args[0]];
if(!h) {
throw CommandException(boost::str(boost::format("unknown command \"%s\"") % args[0]));
}
return h(this);
}
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