import * as path from 'path'
import { simpleGit } from 'simple-git'

import { resolve } from '@plastichub/osr-cli-commons/fs'
import { logger } from '../src/index'
import { option } from './'

const GIT_MESSAGE_PREFIX = (rel: string) => `Updating - ${rel}`

export async function git_update(options) {

    const {cwd, rel, message, debug} = options

    const git = simpleGit(cwd)
    let commit: any = null
    let push: any = null

    try {
        debug && logger.debug("commit " + rel + " in " + cwd)
        commit = await git.add(rel)
    }
    catch (e) {
        logger.error('Error Git Commit', e)
    }

    try {
        debug && logger.debug("commit " + rel + " in " + cwd)
        commit = await git.commit(message || GIT_MESSAGE_PREFIX(rel), rel)
    }
    catch (e) {
        logger.error('Error Git Commit', e)
    }

    try {
        push = await git.push()    }
    catch (e) {
        logger.error('Error Git Push', e)
    }
    return {
        commit,
        push
    }
}

export const register = (grunt) => {
    grunt.registerMultiTask('git', 'Adds, commits and pushes folders', async function () {
        const done = this.async()
        const task_options = this.data || {}

        let rel: string = this.data.rel

        const variables = {
            ...task_options.variables || {}
        }
        
        const options = {
            rel:resolve(rel, false, variables),
            cwd: resolve(option('cwd', task_options, grunt),false),
            message: option('message', task_options, grunt),
            debug: option('debug', task_options, grunt),
            verbose: option('verbose', task_options, grunt)
        }
        options.debug && logger.info('Git - task data ', this.data)
        await git_update(options)
        done()
    });
};