import {ArgTypeEnum, CliCommandInterface} from "./interfaces/cli-command.interface";
import {newCommand} from "./cli-commands/new-command/new-command";
import {validateConfigCommand} from "./cli-commands/validate-config-command/validate-config-command";
import {Logger} from "./shared/logging/Logger";
import {emojify} from "node-emoji";
import {buildCommand} from "./cli-commands/build-command/build-command";
import _ = require("lodash");
import Table = require('cli-table');

export const commands: CliCommandInterface[] = [
    newCommand,
    validateConfigCommand,
    buildCommand
];

export function dispatch(cmd: string, args?: string[]): boolean {
    if (!cmd) {
        Logger.error('No command found.');
        return dispatch('help');
    }
    if (cmd === 'help') {
        printHelp();
        return true;
    }
    if (_.some<CliCommandInterface>(commands, {name: cmd})) {
        const command: CliCommandInterface = _.find<CliCommandInterface>(commands, {name: cmd});
        if (args[0] === 'help') {
            printHelp(command);
            return true;
        }
        return command._call();
    } else {
        console.error(`Command not found: ${cmd}`);
        return false;
    }
}

function printHelp(cmd?: CliCommandInterface): void {
    Logger.info('Help');
    if (!!cmd) {
        const table = new Table({
            head: ['shortArg', 'longArg', 'arg required', 'type', 'value required', 'description'],
            // colWidths: [10, 20, 14, 8, 16],
            colAligns: ['middle', "middle", "middle", "middle", "middle", "left"]
        });
        if (cmd.args) {
            for (let arg of cmd.args) {
                table.push([
                    arg.shortArg && `-${arg.shortArg}` || '',
                    `-${arg.longArg}`,
                    arg.argRequired ? emojify(':white_check_mark:') : emojify(':x:'),
                    arg.type,
                    arg.type !== ArgTypeEnum.void && arg.valueRequired ? emojify(':white_check_mark:') : emojify(':x:'),
                    arg.description || ''
                ]);
            }
            console.log(table.toString());

        } else {
            console.log('No arguments required');
        }
    } else {
        console.log('Usage: pdf-bunny <command> [args]');
        const table = new Table({
            head: ['command', 'description']
        });
        for (let command of commands) {
            table.push([command.name, command.description]);
        }
        console.log(table.toString());
    }
}