95 lines
2.4 KiB
JavaScript
95 lines
2.4 KiB
JavaScript
const Path = require('path'),
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fs = require('fs');
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const protocolDir = Path.normalize(__dirname+'/../protocols');
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const gamesFile = Path.normalize(__dirname+'/../games.txt');
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function parseList(str) {
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if(!str) return {};
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const out = {};
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for (const one of str.split(',')) {
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const equals = one.indexOf('=');
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const key = equals === -1 ? one : one.substr(0,equals);
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let value = equals === -1 ? '' : one.substr(equals+1);
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if(value === 'true' || value === '') value = true;
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else if(value === 'false') value = false;
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else if(!isNaN(value)) value = parseInt(value);
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out[key] = value;
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}
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return out;
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}
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function readGames() {
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const lines = fs.readFileSync(gamesFile,'utf8').split('\n');
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const games = {};
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for (let line of lines) {
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// strip comments
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const comment = line.indexOf('#');
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if(comment !== -1) line = line.substr(0,comment);
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line = line.trim();
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if(!line) continue;
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const split = line.split('|');
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games[split[0].trim()] = {
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pretty: split[1].trim(),
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protocol: split[2].trim(),
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options: parseList(split[3]),
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params: parseList(split[4])
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};
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}
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return games;
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}
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const games = readGames();
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function createProtocolInstance(type) {
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type = Path.basename(type);
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const path = protocolDir+'/'+type;
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if(!fs.existsSync(path+'.js')) throw Error('Protocol definition file missing: '+type);
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const protocol = require(path);
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return new protocol();
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}
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class TypeResolver {
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static lookup(type) {
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if(!type) throw Error('No game specified');
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if(type.substr(0,9) === 'protocol-') {
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return createProtocolInstance(type.substr(9));
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}
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const game = games[type];
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if(!game) throw Error('Invalid game: '+type);
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const query = createProtocolInstance(game.protocol);
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query.pretty = game.pretty;
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for(const key of Object.keys(game.options)) {
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query.options[key] = game.options[key];
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}
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for(const key of Object.keys(game.params)) {
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query[key] = game.params[key];
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}
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return query;
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}
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static printReadme() {
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let out = '';
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for(const key of Object.keys(games)) {
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const game = games[key];
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out += "* "+game.pretty+" ("+key+")";
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if(game.options.port_query_offset || game.options.port_query)
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out += " [[Separate Query Port](#separate-query-port)]";
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if(game.params.doc_notes)
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out += " [[Additional Notes](#"+game.params.doc_notes+")]";
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out += "\n";
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}
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return out;
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}
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}
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module.exports = TypeResolver;
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