// Generate password

import "@johnlindquist/kit";

import { generate, generateMultiple, GenerateOptions } from "generate-password";
import rc from "rc";

import omit from "lodash.omit";

import { passwordStrength } from "check-password-strength";

const config = rc("generatepassword", { length: 10 }); // create a ~/.generate-passwordrc file (see: https://www.npmjs.com/package/rc#standards)

const flags = {
  copy: {
    name: "copy",
    shortcut: "cmd+c",
  },
};

function formatVariant(o) {
  if (Object.keys(o).length === 0) o = config;

  const arr = [];
  Object.keys(o).forEach((k) => {
    if (o[k] === true) {
      arr.push(`--${k}`);
    } else if (o[k] === false) {
      arr.push(`--no-${k}`);
    }
  });
  return arr.join(" ");
}

function sortedObj(o) {
  return Object.fromEntries(Object.entries(o).sort());
}

const chosenPass = await arg(
  {
    placeholder: (config.length && String(config.length)) || undefined,
    description: `Length`,
    flags,
  },
  (input) => {
    const baseOpts = { ...config };

    const length = (input && Number(input)) || undefined;
    if (length) baseOpts.length = length;

    const variants = [
      {},
      { numbers: true, symbols: true },
      {
        numbers: true,
        symbols: true,
        excludeSimilarCharacters: true,
      },
      { numbers: true, symbols: true, lowercase: false },
      { numbers: true, symbols: true, uppercase: false },
      { numbers: true },
      { symbols: true },
      { lowercase: false },
      { uppercase: false },
    ];

    return variants.map((variant) => {
      const opts = { ...baseOpts, ...variant };
      const newPass = generate(opts);

      const description =
        Object.keys(variant).length === 0
          ? `from config: ${config.config}`
          : formatVariant(variant);

      return {
        name: `${newPass}`,
        description,
        preview() {
          return md(`${passwordStrength(newPass).value}
\`\`\`json
${JSON.stringify(omit(sortedObj(opts), "_", "configs", "config"), null, 4)}
\`\`\`
see [available options](https://www.npmjs.com/package/generate-password#available-options)
`);
        },
        value: newPass,
      };
    });
  }
);

if (flag?.copy) {
  copy(chosenPass);
} else {
  setSelectedText(chosenPass);
}