let fs = require('fs');
let path = require('path');
var reactDocs = require('react-docgen');

// let TEXT = fs.readFileSync('../../node_modules/native-base/src/basic/Button.js');

// var componentInfo = reactDocs.parse(TEXT);
// console.log("NativeBaseCI", componentInfo);







//joining path of directory 
const directoryPath = "../../node_modules/native-base/src/basic/";
//passsing directoryPath and callback function
fs.readdir(directoryPath, function (err, files) {
    //handling error
    if (err) {
        return console.log('Unable to scan directory: ' + err);
    }
    
    let Infos = [];

    //listing all files using forEach
    files.forEach(function (file, index) {
        // Do whatever you want to do with the file
        if(!file.endsWith('.js') || file.includes('.android') || file.includes('.ios')) return;
        console.log("No. " + index +" : ", file);
        
        let content = fs.readFileSync(directoryPath + file);
        try{
        	let info = reactDocs.parse(content);
        	info.componentName = file.replace('.js', '');
        	Infos.push(info);
    	} catch(e) {
    		console.log("Error");
    		console.log(e);
    	}
    });

    let fileText = generateFile(Infos);
    fs.writeFileSync('./index.js', fileText);
});


function generateFile(Infos) {
	    let headers = `
import React from 'react';
import Types from '../../lib/Types';
import Module from '../../lib/Module';\n`;

    let IM = [],
    	EX = [],
    	PROPS = [],
    	Names = [];
    Infos.forEach((info) => {
       	let { im, ex, props} = createClass(info);
       	Names.push(info.componentName);
    	IM.push(im);
    	EX.push(ex);
    	PROPS.push(props);
    })
    return headers + "\n\n" + 
    IM.join('\n')  + "\n\n" +
    EX.join('\n')  + "\n\n" +
    PROPS.join('\n')+"\n\n" +
    `export default { \n\t${Names.join(',\n\t')} \n}`;
}

function createClass(item) {
	let name = item.componentName;
	let props = generatePropsText(item.props);
	let s = `export class ${name} extends Module {
	constructor(props) {
		super(props);
	}
	display() {
		return <${name+'Ctor'} {...this.props} />
	}
}`;
	let propsText = `${name}.Inputs = ${props}`;

	return {
		im: `import { ${name} as ${name+'Ctor'} } from 'native-base';`,
		ex: s,
		props: propsText
	}
}

function generatePropsText(props) {
	let Props = [];
	for(var name in props) {
		let p = props[name];
		let validator;
		switch(p.type && p.type.name) {
			case 'number':
				validator = "new Types.Real()"
				break;
			case 'string':
				validator = "new Types.Text()"
				break;
			case 'bool':
				validator = "new Types.Bool()"
				break;
			default: 
				
				console.log("Style type for ", name , p.type);
				continue;
				break;
		}
		if(p.required) validator += ".require()"
		if(p.defaultValue) validator += `.default(${p.defaultValue.value})`
		let s = `${name}: ${validator}`;
		Props.push(s);
	}
	return `{
	${Props.join(',\n\t')}
}`;
}