const path = require("path");
const moment = require("moment");
require("dotenv").config({
  path: path.resolve(
    process.cwd(),
    `.env.${process.env.NODE_ENV || "development"}`
  ),
});
var _ = require("lodash");
const Handlebars = require("handlebars");
var Dinero = require("dinero.js");
Dinero.defaultCurrency = "CAD";
Dinero.globalLocale = "en-CA";

//Usage: {{moment appointments_by_pk.start format="dddd, DD MMMM YYYY"}}

Handlebars.registerHelper("dinerof", function (context, block) {
  if (context && context.hash) {
    block = _.cloneDeep(context);
    context = undefined;
  }
  var amount = Dinero(context);
  if (context) {
    return amount.toFormat();
  }
  return "";
});

Handlebars.registerHelper("objectKeys", function (obj, block) {
  var accum = "";

  obj &&
    Object.keys(obj).map((key) => {
      accum += block.fn({ key, value: obj[key] });
    });
  return accum;
});

Handlebars.registerHelper("dinero", function (context, block) {
  if (context && context.hash) {
    block = _.cloneDeep(context);
    context = undefined;
  }
  var amount = Dinero({ amount: Math.round((context || 0) * 100) });
  return amount.toFormat();
});

Handlebars.registerHelper("moment", function (context, block) {
  if (context && context.hash) {
    block = _.cloneDeep(context);
    context = undefined;
  }
  var date = moment(context);

  if (block.hash.timezone) {
    date.tz(block.hash.timezone);
  }

  var hasFormat = false;

  // Reset the language back to default before doing anything else
  date.locale("en");

  for (var i in block.hash) {
    if (i === "format") {
      hasFormat = true;
    } else if (date[i]) {
      date = date[i](block.hash[i]);
    } else {
      console.log('moment.js does not support "' + i + '"');
    }
  }

  if (hasFormat) {
    date = date.format(block.hash.format);
  }
  return date;
});

Handlebars.registerHelper("duration", function (context, block) {
  if (context && context.hash) {
    block = _.cloneDeep(context);
    context = 0;
  }
  var duration = moment.duration(context);
  var hasFormat = false;

  // Reset the language back to default before doing anything else
  duration = duration.lang("en");

  for (var i in block.hash) {
    if (i === "format") {
      hasFormat = true;
    } else if (duration[i]) {
      duration = duration[i](block.hash[i]);
    } else {
      console.log('moment.js duration does not support "' + i + '"');
    }
  }

  if (hasFormat) {
    duration = duration.format(block.hash.format);
  }
  return duration;
});

exports.render = (req, res) => {
  //Perform request validation
  let view;
  console.log("[HJS Render] New Render Request.");

  //console.log("[HJS Render] Context", req.body.context);
  if (req.body.context.bodyshop.template_header) {
    console.log("[HJS Render] Including Header");
    view = `${req.body.context.bodyshop.template_header}${req.body.view}`;
  } else {
    console.log("[HJS Render] No header to include.");
    view = req.body.view;
  }
  var template = Handlebars.compile(view);
  res.send(template(req.body.context));
};