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/*
Responsible for generating .h files from GLSL files.
*/
const path = require('path');
const fs = require('fs');
const directory = path.join(__dirname, "..", "_shaders");
const out_directory = path.join(__dirname, "..", "shaders");
if (!fs.existsSync(out_directory)){
fs.mkdirSync(out_directory);
}
const files = fs.readdirSync(directory);
files.forEach(file => {
const filePath = path.join(directory, file);
const text = String(fs.readFileSync(filePath));
const splitText = text.split('\n');
const splitName = file.split('.');
const def = `SHADER_${splitName.join('_').toUpperCase()}`;
let header_result = `#ifndef ${def} \n`;
const filename = splitName.join('_');
const header_name = filename + ".h";
const cpp_name = filename + ".cpp";
header_result += `#define ${def} \n`;
header_result += `extern const char* ${def.toLowerCase()};\n`;
header_result += '#endif\n';
fs.writeFileSync(path.join(out_directory, header_name), header_result);
let cpp_result = `#include "${header_name}"\n\n`
cpp_result += `const char* ${def.toLowerCase()} = `
splitText.forEach((line, index) => {
cpp_result += "\"" + line + " \\n\"";
if (index == splitText.length - 1)
cpp_result += ";\n";
else
cpp_result += "\n";
});
fs.writeFileSync(path.join(out_directory, cpp_name), cpp_result);
});
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