import chalk from 'chalk';

// @ts-ignore
import gradient from 'gradient-string';

import type { RenderContext } from './getRenderContext';

export function logBanner() {
  console.log(`\n${getBanner()}\n`);
}

export function logSuccess(message: string) {
  console.log(chalk.green('✔︎') + ` ${message}`);
}

export function logError(message: string) {
  console.log(chalk.red('✖') + ` ${message}`);
}

export function logErrorAndExit(message: string) {
  logError(message);
  process.exit(1);
}

export async function logStep<T>(title: string, callback: () => T): Promise<T> {
  try {
    const result = await spinner(`${title}...`, callback);
    logSuccess(`${title}.`);
    return result;
  } catch (e) {
    logError(`${title}.\n`);
    console.log(e);
    process.exit(1);
  }
}

export function logDone(ctx: RenderContext) {
  console.log(chalk.green('✔︎') + ` ${ctx.language.infos.done}\n`);

  // Log next steps: Cd into the target directory.
  if (ctx.targetDirectory !== ctx.currentDirectory) {
    const cdCommand = `cd ${ctx.targetDirectoryName.includes(' ') ? `"${ctx.targetDirectoryName}"` : ctx.targetDirectoryName}`;
    console.log(`  ${chalk.bold(chalk.green(cdCommand))}`);
  }

  // Log next steps: Install dependencies.
  const installCommand = ctx.getNpmCommand('install');
  console.log(`  ${chalk.bold(chalk.green(installCommand))}`);

  // Log next steps: Generate Idls and clients.
  const generateCommand = ctx.getNpmCommand('generate');
  console.log(`  ${chalk.bold(chalk.green(generateCommand))}`);

  // Final line break.
  console.log();
}

export async function spinner<T>(callback: () => T): Promise<T>;
export async function spinner<T>(title: string, callback: () => T): Promise<T>;
export async function spinner<T>(
  title: string | (() => T),
  callback?: () => T
): Promise<T> {
  if (typeof title == 'function') {
    callback = title;
    title = '';
  }
  let i = 0;
  const spin = () =>
    process.stderr.write(`  ${'⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏'[i++ % 10]} ${title}\r`);
  const id = setInterval(spin, 100);
  let result: T;
  try {
    result = await callback!();
  } finally {
    clearInterval(id as NodeJS.Timeout);
    process.stderr.write(' '.repeat(process.stdout.columns - 1) + '\r');
  }
  return result;
}

function getBanner() {
  const textBanner = 'Create Solana Program';
  const gradientBanner = chalk.bold(
    gradient(['#89d7c8', '#dc7a8b'])(textBanner, {
      interpolation: 'hsv',
      hsvSpin: 'long',
    })
  );

  return process.stdout.isTTY && process.stdout.getColorDepth() > 8
    ? gradientBanner
    : textBanner;
}