#!/usr/bin/env node

// Packages
const ansiEscapes = require("ansi-escapes");
const chalk = require("chalk");
const ccValidator = require("credit-card");

// Ours
const textInput = require("../lib/utils/input/text");
const countries = require("../lib/utils/billing/country-list");
const cardBrands = require("../lib/utils/billing/card-brands");
const geocode = require("../lib/utils/billing/geocode");
const success = require("../lib/utils/output/success");
const wait = require("../lib/utils/output/wait");

function rightPad(string, n = 12) {
  n -= string.length;
  return string + " ".repeat(n > -1 ? n : 0);
}

function expDateMiddleware(data) {
  return data;
}

module.exports = function(creditCards) {
  const state = {
    error: undefined,
    cardGroupLabel: `> ${chalk.bold("Enter your card details")}`,

    name: {
      label: rightPad("Full Name"),
      placeholder: "John Appleseed",
      validateValue: data => data.trim().length > 0
    },

    cardNumber: {
      label: rightPad("Number"),
      mask: "cc",
      placeholder: "#### #### #### ####",
      validateKeypress: (data, value) => /\d/.test(data) && value.length < 19,
      validateValue: data => {
        data = data.replace(/ /g, "");
        const type = ccValidator.determineCardType(data);
        if (!type) {
          return false;
        }
        return ccValidator.isValidCardNumber(data, type);
      }
    },

    ccv: {
      label: rightPad("CCV"),
      mask: "ccv",
      placeholder: "###",
      validateValue: data => {
        const brand = state.cardNumber.brand.toLowerCase();
        return ccValidator.doesCvvMatchType(data, brand);
      }
    },

    expDate: {
      label: rightPad("Exp. Date"),
      mask: "expDate",
      placeholder: "mm / yyyy",
      middleware: expDateMiddleware,
      validateValue: data => !ccValidator.isExpired(...data.split(" / "))
    },

    addressGroupLabel: `\n> ${chalk.bold("Enter your billing address")}`,

    country: {
      label: rightPad("Country"),
      async autoComplete(value) {
        for (const country in countries) {
          if (!Object.hasOwnProperty.call(countries, country)) {
            continue;
          }
          if (country.startsWith(value)) {
            return country.substr(value.length);
          }
        }
        return false;
      },
      validateValue: value => countries[value] !== undefined
    },

    zipCode: {
      label: rightPad("ZIP"),
      validadeKeypress: data => data.trim().length > 0,
      validateValue: data => data.trim().length > 0
    },

    state: {
      label: rightPad("State"),
      validateValue: data => data.trim().length > 0
    },

    city: {
      label: rightPad("City"),
      validateValue: data => data.trim().length > 0
    },

    address1: {
      label: rightPad("Address"),
      validateValue: data => data.trim().length > 0
    }
  };

  async function render() {
    for (const key in state) {
      if (!Object.hasOwnProperty.call(state, key)) {
        continue;
      }
      const piece = state[key];
      if (typeof piece === "string") {
        console.log(piece);
      } else if (typeof piece === "object") {
        let result;
        try {
          result = await textInput({
            label: "- " + piece.label,
            initialValue: piece.initialValue || piece.value,
            placeholder: piece.placeholder,
            mask: piece.mask,
            validateKeypress: piece.validateKeypress,
            validateValue: piece.validateValue,
            autoComplete: piece.autoComplete
          });
          piece.value = result;
          if (key === "cardNumber") {
            let brand = cardBrands[ccValidator.determineCardType(result)];
            piece.brand = brand;
            if (brand === "American Express") {
              state.ccv.placeholder = "#".repeat(4);
            } else {
              state.ccv.placeholder = "#".repeat(3);
            }
            brand = chalk.cyan(`[${brand}]`);
            const masked = chalk.gray("#### ".repeat(3)) + result.split(" ")[3];
            process.stdout.write(
              `${chalk.cyan("✓")} ${piece.label}${masked} ${brand}\n`
            );
          } else if (key === "ccv") {
            process.stdout.write(
              `${chalk.cyan("✓")} ${piece.label}${"*".repeat(result.length)}\n`
            );
          } else if (key === "expDate") {
            let text = result.split(" / ");
            text = text[0] + chalk.gray(" / ") + text[1];
            process.stdout.write(`${chalk.cyan("✓")} ${piece.label}${text}\n`);
          } else if (key === "zipCode") {
            const stopSpinner = wait(piece.label + result);
            const addressInfo = await geocode({
              country: state.country.value,
              zipCode: result
            });
            if (addressInfo.state) {
              state.state.initialValue = addressInfo.state;
            }
            if (addressInfo.city) {
              state.city.initialValue = addressInfo.city;
            }
            stopSpinner();
            process.stdout.write(
              `${chalk.cyan("✓")} ${piece.label}${result}\n`
            );
          } else {
            process.stdout.write(
              `${chalk.cyan("✓")} ${piece.label}${result}\n`
            );
          }
        } catch (err) {
          if (err.message === "USER_ABORT") {
            process.exit(1);
          } else {
            console.error(err);
          }
        }
      }
    }
    console.log(""); // new line
    const stopSpinner = wait("Saving card");

    try {
      const res = await creditCards.add({
        name: state.name.value,
        cardNumber: state.cardNumber.value,
        ccv: state.ccv.value,
        expDate: state.expDate.value,
        country: state.country.value,
        zipCode: state.zipCode.value,
        state: state.state.value,
        city: state.city.value,
        address1: state.address1.value
      });
      stopSpinner();
      success(
        `${state.cardNumber.brand} ending in ${res.last4} was added to your account`
      );
    } catch (err) {
      stopSpinner();
      const linesToClear = state.error ? 13 : 12;
      process.stdout.write(ansiEscapes.eraseLines(linesToClear));
      state.error = `${chalk.red("> Error!")} ${err.message} Please make sure the info is correct`;
      await render();
    }
  }

  render().catch(console.error);
};