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var path = require('path');
var WebsiteGenerator = require('../website');
var JSONUtils = require('../../json');
var Templating = require('../../templating');
var Promise = require('../../utils/promise');
var error = require('../../utils/error');
var command = require('../../utils/command');
var writeFile = require('../helper/writeFile');
var getConvertOptions = require('./getConvertOptions');
var SUMMARY_FILE = 'SUMMARY.html';
/**
Write the SUMMARY.html
@param {Output}
@return {Output}
*/
function writeSummary(output) {
var options = output.getOptions();
var prefix = options.get('prefix');
var filePath = SUMMARY_FILE;
var engine = WebsiteGenerator.createTemplateEngine(output, filePath);
var context = JSONUtils.encodeOutput(output);
// Render the theme
return Templating.renderFile(engine, prefix + '/summary.html', context)
// Write it to the disk
.then(function(html) {
return writeFile(output, filePath, html);
});
}
/**
Generate the ebook file as "index.pdf"
@param {Output}
@return {Output}
*/
function runEbookConvert(output) {
var logger = output.getLogger();
var options = output.getOptions();
var format = options.get('format');
var outputFolder = output.getRoot();
if (!format) {
return Promise(output);
}
return getConvertOptions(output)
.then(function(options) {
var cmd = [
'ebook-convert',
path.resolve(outputFolder, SUMMARY_FILE),
path.resolve(outputFolder, 'index.' + format),
command.optionsToShellArgs(options)
].join(' ');
return command.exec(cmd)
.progress(function(data) {
logger.debug(data);
})
.fail(function(err) {
if (err.code == 127) {
throw error.RequireInstallError({
cmd: 'ebook-convert',
install: 'Install it from Calibre: https://calibre-ebook.com'
});
}
throw error.EbookError(err);
});
})
.thenResolve(output);
}
/**
Finish the generation, generates the SUMMARY.html
@param {Output}
@return {Output}
*/
function onFinish(output) {
return writeSummary(output)
.then(runEbookConvert);
}
module.exports = onFinish;
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