/**

* Copyright (c) 2015-present, Facebook, Inc.

* All rights reserved.

*

* This source code is licensed under the BSD-style license found in the

* LICENSE file in the root directory of this source tree. An additional grant

* of patent rights can be found in the PATENTS file in the same directory.

*/

var fs = require('fs')

var glob = require('glob');

var mkdirp = require('mkdirp');

var optimist = require('optimist');

var path = require('path');

var extractDocs = require('./extractDocs');

var argv = optimist.argv;

function splitHeader(content) {

var lines = content.split('\n');

for (var i = 1; i < lines.length - 1; ++i) {

if (lines[i] === '---') {

break;

}

}

return {

header: i < lines.length - 1 ?

lines.slice(1, i + 1).join('\n') : null,

content: lines.slice(i + 1).join('\n')

};

}

function backtickify(str) {

var escaped = '`' + str.replace(/\\/g, '\\\\').replace(/`/g, '\\`').replace(/{/g, '\\{') + '`';

// Replace require( with require\( so node-haste doesn't replace example

// require calls in the docs

return escaped.replace(/require\(/g, 'require\\(');

}

function execute() {

var MD_DIR = '../docs/';

var files = glob.sync('src/react-native/docs/*.*');

files.forEach(function(file) {

try {

fs.unlinkSync(file);

} catch(e) {

/* seriously, unlink throws when the file doesn't exist :( */

}

});

var metadatas = {

files: [],

};

function handleMarkdown(content) {

var metadata = {};

// Extract markdown metadata header

var both = splitHeader(content);

if (!both.header) {

return;

}

var lines = both.header.split('\n');

for (var i = 0; i < lines.length - 1; ++i) {

var keyvalue = lines[i].split(':');

var key = keyvalue[0].trim();

var value = keyvalue.slice(1).join(':').trim();

// Handle the case where you have "Community #10"

try { value = JSON.parse(value); } catch(e) { }

metadata[key] = value;

}

if (metadata.sidebar !== false) {

metadatas.files.push(metadata);

}

if (metadata.permalink.match(/^https?:/)) {

return;

}

// Create a dummy .js version that just calls the associated layout

var layout = metadata.layout[0].toUpperCase() + metadata.layout.substr(1) + 'Layout';

var content = (

'/**\n' +

' * @generated\n' +

' * @jsx React.DOM\n' +

' */\n' +

'var React = require("React");\n' +

'var layout = require("' + layout + '");\n' +

'var content = ' + backtickify(both.content) + '\n' +

'var Post = React.createClass({\n' +

' render: function() {\n' +

' return layout({metadata: ' + JSON.stringify(metadata) + '}, content);\n' +

' }\n' +

'});\n' +

// TODO: Use React statics after upgrading React

'Post.content = content;\n' +

'module.exports = Post;\n'

);

var targetFile = 'src/react-native/' + metadata.permalink.replace(/\.html$/, '.js');

mkdirp.sync(targetFile.replace(new RegExp('/[^/]*$'), ''));

fs.writeFileSync(targetFile, content);

}

extractDocs().forEach(handleMarkdown);

var files = glob.sync(MD_DIR + '**/*.*');

files.forEach(function(file) {

var extension = path.extname(file);

if (extension === '.md' || extension === '.markdown') {

var content = fs.readFileSync(file, {encoding: 'utf8'});

handleMarkdown(content);

}

if (extension === '.json') {

var content = fs.readFileSync(file, {encoding: 'utf8'});

metadatas[path.basename(file, '.json')] = JSON.parse(content);

}

});

fs.writeFileSync(

'core/metadata.js',

'/**\n' +

' * @generated\n' +

' * @providesModule Metadata\n' +

' */\n' +

'module.exports = ' + JSON.stringify(metadatas, null, 2) + ';'

);

}

if (argv.convert) {

console.log('convert!');

execute();

}

module.exports = execute;