<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Console\Helper;

use Symfony\Component\Console\Cursor;
use Symfony\Component\Console\Exception\LogicException;
use Symfony\Component\Console\Output\ConsoleOutputInterface;
use Symfony\Component\Console\Output\ConsoleSectionOutput;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Terminal;

/**
 * The ProgressBar provides helpers to display progress output.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Chris Jones <leeked@gmail.com>
 */
final class ProgressBar
{
    public const FORMAT_VERBOSE = 'verbose';
    public const FORMAT_VERY_VERBOSE = 'very_verbose';
    public const FORMAT_DEBUG = 'debug';
    public const FORMAT_NORMAL = 'normal';

    private const FORMAT_VERBOSE_NOMAX = 'verbose_nomax';
    private const FORMAT_VERY_VERBOSE_NOMAX = 'very_verbose_nomax';
    private const FORMAT_DEBUG_NOMAX = 'debug_nomax';
    private const FORMAT_NORMAL_NOMAX = 'normal_nomax';

    private int $barWidth = 28;
    private string $barChar;
    private string $emptyBarChar = '-';
    private string $progressChar = '>';
    private ?string $format = null;
    private ?string $internalFormat = null;
    private ?int $redrawFreq = 1;
    private int $writeCount = 0;
    private float $lastWriteTime = 0;
    private float $minSecondsBetweenRedraws = 0;
    private float $maxSecondsBetweenRedraws = 1;
    private $output;
    private int $step = 0;
    private ?int $max = null;
    private int $startTime;
    private int $stepWidth;
    private float $percent = 0.0;
    private array $messages = [];
    private bool $overwrite = true;
    private $terminal;
    private ?string $previousMessage = null;
    private $cursor;

    private static array $formatters;
    private static array $formats;

    /**
     * @param int $max Maximum steps (0 if unknown)
     */
    public function __construct(OutputInterface $output, int $max = 0, float $minSecondsBetweenRedraws = 1 / 25)
    {
        if ($output instanceof ConsoleOutputInterface) {
            $output = $output->getErrorOutput();
        }

        $this->output = $output;
        $this->setMaxSteps($max);
        $this->terminal = new Terminal();

        if (0 < $minSecondsBetweenRedraws) {
            $this->redrawFreq = null;
            $this->minSecondsBetweenRedraws = $minSecondsBetweenRedraws;
        }

        if (!$this->output->isDecorated()) {
            // disable overwrite when output does not support ANSI codes.
            $this->overwrite = false;

            // set a reasonable redraw frequency so output isn't flooded
            $this->redrawFreq = null;
        }

        $this->startTime = time();
        $this->cursor = new Cursor($output);
    }

    /**
     * Sets a placeholder formatter for a given name.
     *
     * This method also allow you to override an existing placeholder.
     *
     * @param string   $name     The placeholder name (including the delimiter char like %)
     * @param callable $callable A PHP callable
     */
    public static function setPlaceholderFormatterDefinition(string $name, callable $callable): void
    {
        self::$formatters ??= self::initPlaceholderFormatters();

        self::$formatters[$name] = $callable;
    }

    /**
     * Gets the placeholder formatter for a given name.
     *
     * @param string $name The placeholder name (including the delimiter char like %)
     */
    public static function getPlaceholderFormatterDefinition(string $name): ?callable
    {
        self::$formatters ??= self::initPlaceholderFormatters();

        return self::$formatters[$name] ?? null;
    }

    /**
     * Sets a format for a given name.
     *
     * This method also allow you to override an existing format.
     *
     * @param string $name   The format name
     * @param string $format A format string
     */
    public static function setFormatDefinition(string $name, string $format): void
    {
        self::$formats ??= self::initFormats();

        self::$formats[$name] = $format;
    }

    /**
     * Gets the format for a given name.
     *
     * @param string $name The format name
     */
    public static function getFormatDefinition(string $name): ?string
    {
        self::$formats ??= self::initFormats();

        return self::$formats[$name] ?? null;
    }

    /**
     * Associates a text with a named placeholder.
     *
     * The text is displayed when the progress bar is rendered but only
     * when the corresponding placeholder is part of the custom format line
     * (by wrapping the name with %).
     *
     * @param string $message The text to associate with the placeholder
     * @param string $name    The name of the placeholder
     */
    public function setMessage(string $message, string $name = 'message')
    {
        $this->messages[$name] = $message;
    }

    public function getMessage(string $name = 'message')
    {
        return $this->messages[$name];
    }

    public function getStartTime(): int
    {
        return $this->startTime;
    }

    public function getMaxSteps(): int
    {
        return $this->max;
    }

    public function getProgress(): int
    {
        return $this->step;
    }

    private function getStepWidth(): int
    {
        return $this->stepWidth;
    }

    public function getProgressPercent(): float
    {
        return $this->percent;
    }

    public function getBarOffset(): float
    {
        return floor($this->max ? $this->percent * $this->barWidth : (null === $this->redrawFreq ? (int) (min(5, $this->barWidth / 15) * $this->writeCount) : $this->step) % $this->barWidth);
    }

    public function getEstimated(): float
    {
        if (!$this->step) {
            return 0;
        }

        return round((time() - $this->startTime) / $this->step * $this->max);
    }

    public function getRemaining(): float
    {
        if (!$this->step) {
            return 0;
        }

        return round((time() - $this->startTime) / $this->step * ($this->max - $this->step));
    }

    public function setBarWidth(int $size)
    {
        $this->barWidth = max(1, $size);
    }

    public function getBarWidth(): int
    {
        return $this->barWidth;
    }

    public function setBarCharacter(string $char)
    {
        $this->barChar = $char;
    }

    public function getBarCharacter(): string
    {
        return $this->barChar ?? ($this->max ? '=' : $this->emptyBarChar);
    }

    public function setEmptyBarCharacter(string $char)
    {
        $this->emptyBarChar = $char;
    }

    public function getEmptyBarCharacter(): string
    {
        return $this->emptyBarChar;
    }

    public function setProgressCharacter(string $char)
    {
        $this->progressChar = $char;
    }

    public function getProgressCharacter(): string
    {
        return $this->progressChar;
    }

    public function setFormat(string $format)
    {
        $this->format = null;
        $this->internalFormat = $format;
    }

    /**
     * Sets the redraw frequency.
     *
     * @param int|null $freq The frequency in steps
     */
    public function setRedrawFrequency(?int $freq)
    {
        $this->redrawFreq = null !== $freq ? max(1, $freq) : null;
    }

    public function minSecondsBetweenRedraws(float $seconds): void
    {
        $this->minSecondsBetweenRedraws = $seconds;
    }

    public function maxSecondsBetweenRedraws(float $seconds): void
    {
        $this->maxSecondsBetweenRedraws = $seconds;
    }

    /**
     * Returns an iterator that will automatically update the progress bar when iterated.
     *
     * @param int|null $max Number of steps to complete the bar (0 if indeterminate), if null it will be inferred from $iterable
     */
    public function iterate(iterable $iterable, int $max = null): iterable
    {
        $this->start($max ?? (is_countable($iterable) ? \count($iterable) : 0));

        foreach ($iterable as $key => $value) {
            yield $key => $value;

            $this->advance();
        }

        $this->finish();
    }

    /**
     * Starts the progress output.
     *
     * @param int|null $max Number of steps to complete the bar (0 if indeterminate), null to leave unchanged
     */
    public function start(int $max = null)
    {
        $this->startTime = time();
        $this->step = 0;
        $this->percent = 0.0;

        if (null !== $max) {
            $this->setMaxSteps($max);
        }

        $this->display();
    }

    /**
     * Advances the progress output X steps.
     *
     * @param int $step Number of steps to advance
     */
    public function advance(int $step = 1)
    {
        $this->setProgress($this->step + $step);
    }

    /**
     * Sets whether to overwrite the progressbar, false for new line.
     */
    public function setOverwrite(bool $overwrite)
    {
        $this->overwrite = $overwrite;
    }

    public function setProgress(int $step)
    {
        if ($this->max && $step > $this->max) {
            $this->max = $step;
        } elseif ($step < 0) {
            $step = 0;
        }

        $redrawFreq = $this->redrawFreq ?? (($this->max ?: 10) / 10);
        $prevPeriod = (int) ($this->step / $redrawFreq);
        $currPeriod = (int) ($step / $redrawFreq);
        $this->step = $step;
        $this->percent = $this->max ? (float) $this->step / $this->max : 0;
        $timeInterval = microtime(true) - $this->lastWriteTime;

        // Draw regardless of other limits
        if ($this->max === $step) {
            $this->display();

            return;
        }

        // Throttling
        if ($timeInterval < $this->minSecondsBetweenRedraws) {
            return;
        }

        // Draw each step period, but not too late
        if ($prevPeriod !== $currPeriod || $timeInterval >= $this->maxSecondsBetweenRedraws) {
            $this->display();
        }
    }

    public function setMaxSteps(int $max)
    {
        $this->format = null;
        $this->max = max(0, $max);
        $this->stepWidth = $this->max ? Helper::width((string) $this->max) : 4;
    }

    /**
     * Finishes the progress output.
     */
    public function finish(): void
    {
        if (!$this->max) {
            $this->max = $this->step;
        }

        if ($this->step === $this->max && !$this->overwrite) {
            // prevent double 100% output
            return;
        }

        $this->setProgress($this->max);
    }

    /**
     * Outputs the current progress string.
     */
    public function display(): void
    {
        if (OutputInterface::VERBOSITY_QUIET === $this->output->getVerbosity()) {
            return;
        }

        if (null === $this->format) {
            $this->setRealFormat($this->internalFormat ?: $this->determineBestFormat());
        }

        $this->overwrite($this->buildLine());
    }

    /**
     * Removes the progress bar from the current line.
     *
     * This is useful if you wish to write some output
     * while a progress bar is running.
     * Call display() to show the progress bar again.
     */
    public function clear(): void
    {
        if (!$this->overwrite) {
            return;
        }

        if (null === $this->format) {
            $this->setRealFormat($this->internalFormat ?: $this->determineBestFormat());
        }

        $this->overwrite('');
    }

    private function setRealFormat(string $format)
    {
        // try to use the _nomax variant if available
        if (!$this->max && null !== self::getFormatDefinition($format.'_nomax')) {
            $this->format = self::getFormatDefinition($format.'_nomax');
        } elseif (null !== self::getFormatDefinition($format)) {
            $this->format = self::getFormatDefinition($format);
        } else {
            $this->format = $format;
        }
    }

    /**
     * Overwrites a previous message to the output.
     */
    private function overwrite(string $message): void
    {
        if ($this->previousMessage === $message) {
            return;
        }

        $originalMessage = $message;

        if ($this->overwrite) {
            if (null !== $this->previousMessage) {
                if ($this->output instanceof ConsoleSectionOutput) {
                    $messageLines = explode("\n", $this->previousMessage);
                    $lineCount = \count($messageLines);
                    foreach ($messageLines as $messageLine) {
                        $messageLineLength = Helper::width(Helper::removeDecoration($this->output->getFormatter(), $messageLine));
                        if ($messageLineLength > $this->terminal->getWidth()) {
                            $lineCount += floor($messageLineLength / $this->terminal->getWidth());
                        }
                    }
                    $this->output->clear($lineCount);
                } else {
                    $lineCount = substr_count($this->previousMessage, "\n");
                    for ($i = 0; $i < $lineCount; ++$i) {
                        $this->cursor->moveToColumn(1);
                        $this->cursor->clearLine();
                        $this->cursor->moveUp();
                    }

                    $this->cursor->moveToColumn(1);
                    $this->cursor->clearLine();
                }
            }
        } elseif ($this->step > 0) {
            $message = \PHP_EOL.$message;
        }

        $this->previousMessage = $originalMessage;
        $this->lastWriteTime = microtime(true);

        $this->output->write($message);
        ++$this->writeCount;
    }

    private function determineBestFormat(): string
    {
        switch ($this->output->getVerbosity()) {
            // OutputInterface::VERBOSITY_QUIET: display is disabled anyway
            case OutputInterface::VERBOSITY_VERBOSE:
                return $this->max ? self::FORMAT_VERBOSE : self::FORMAT_VERBOSE_NOMAX;
            case OutputInterface::VERBOSITY_VERY_VERBOSE:
                return $this->max ? self::FORMAT_VERY_VERBOSE : self::FORMAT_VERY_VERBOSE_NOMAX;
            case OutputInterface::VERBOSITY_DEBUG:
                return $this->max ? self::FORMAT_DEBUG : self::FORMAT_DEBUG_NOMAX;
            default:
                return $this->max ? self::FORMAT_NORMAL : self::FORMAT_NORMAL_NOMAX;
        }
    }

    private static function initPlaceholderFormatters(): array
    {
        return [
            'bar' => function (self $bar, OutputInterface $output) {
                $completeBars = $bar->getBarOffset();
                $display = str_repeat($bar->getBarCharacter(), $completeBars);
                if ($completeBars < $bar->getBarWidth()) {
                    $emptyBars = $bar->getBarWidth() - $completeBars - Helper::length(Helper::removeDecoration($output->getFormatter(), $bar->getProgressCharacter()));
                    $display .= $bar->getProgressCharacter().str_repeat($bar->getEmptyBarCharacter(), $emptyBars);
                }

                return $display;
            },
            'elapsed' => function (self $bar) {
                return Helper::formatTime(time() - $bar->getStartTime());
            },
            'remaining' => function (self $bar) {
                if (!$bar->getMaxSteps()) {
                    throw new LogicException('Unable to display the remaining time if the maximum number of steps is not set.');
                }

                return Helper::formatTime($bar->getRemaining());
            },
            'estimated' => function (self $bar) {
                if (!$bar->getMaxSteps()) {
                    throw new LogicException('Unable to display the estimated time if the maximum number of steps is not set.');
                }

                return Helper::formatTime($bar->getEstimated());
            },
            'memory' => function (self $bar) {
                return Helper::formatMemory(memory_get_usage(true));
            },
            'current' => function (self $bar) {
                return str_pad($bar->getProgress(), $bar->getStepWidth(), ' ', \STR_PAD_LEFT);
            },
            'max' => function (self $bar) {
                return $bar->getMaxSteps();
            },
            'percent' => function (self $bar) {
                return floor($bar->getProgressPercent() * 100);
            },
        ];
    }

    private static function initFormats(): array
    {
        return [
            self::FORMAT_NORMAL => ' %current%/%max% [%bar%] %percent:3s%%',
            self::FORMAT_NORMAL_NOMAX => ' %current% [%bar%]',

            self::FORMAT_VERBOSE => ' %current%/%max% [%bar%] %percent:3s%% %elapsed:6s%',
            self::FORMAT_VERBOSE_NOMAX => ' %current% [%bar%] %elapsed:6s%',

            self::FORMAT_VERY_VERBOSE => ' %current%/%max% [%bar%] %percent:3s%% %elapsed:6s%/%estimated:-6s%',
            self::FORMAT_VERY_VERBOSE_NOMAX => ' %current% [%bar%] %elapsed:6s%',

            self::FORMAT_DEBUG => ' %current%/%max% [%bar%] %percent:3s%% %elapsed:6s%/%estimated:-6s% %memory:6s%',
            self::FORMAT_DEBUG_NOMAX => ' %current% [%bar%] %elapsed:6s% %memory:6s%',
        ];
    }

    private function buildLine(): string
    {
        \assert(null !== $this->format);

        $regex = "{%([a-z\-_]+)(?:\:([^%]+))?%}i";
        $callback = function ($matches) {
            if ($formatter = $this::getPlaceholderFormatterDefinition($matches[1])) {
                $text = $formatter($this, $this->output);
            } elseif (isset($this->messages[$matches[1]])) {
                $text = $this->messages[$matches[1]];
            } else {
                return $matches[0];
            }

            if (isset($matches[2])) {
                $text = sprintf('%'.$matches[2], $text);
            }

            return $text;
        };
        $line = preg_replace_callback($regex, $callback, $this->format);

        // gets string length for each sub line with multiline format
        $linesLength = array_map(function ($subLine) {
            return Helper::width(Helper::removeDecoration($this->output->getFormatter(), rtrim($subLine, "\r")));
        }, explode("\n", $line));

        $linesWidth = max($linesLength);

        $terminalWidth = $this->terminal->getWidth();
        if ($linesWidth <= $terminalWidth) {
            return $line;
        }

        $this->setBarWidth($this->barWidth - $linesWidth + $terminalWidth);

        return preg_replace_callback($regex, $callback, $this->format);
    }
}

• [F] DebugFormatterHelper.php
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• [F] DescriptorHelper.php
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• [F] Dumper.php
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• [F] FormatterHelper.php
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• [F] Helper.php
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• [F] HelperInterface.php
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• [F] HelperSet.php
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• [F] InputAwareHelper.php
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• [F] ProcessHelper.php
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• [F] ProgressBar.php
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• [F] ProgressIndicator.php
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• [F] QuestionHelper.php
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• [F] SymfonyQuestionHelper.php
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• [F] Table.php
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• [F] TableCell.php
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• [F] TableCellStyle.php
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• [F] TableRows.php
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• [F] TableSeparator.php
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• [F] TableStyle.php
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About Section

About NFC Pay: Our Story and Mission

NFC Pay was founded with a vision to transform the way people handle transactions. Our journey is defined by a commitment to innovation, security, and convenience. We strive to deliver seamless, user-friendly payment solutions that make everyday transactions effortless and secure. Our mission is to empower you to pay with ease and confidence, anytime, anywhere.

• Simplifying Payments, One Tap at a Time.
• Reinventing Your Wallet for Modern Convenience.
• Smart Payments for a Effortless Lifestyle.
• Experience the Ease of Tap and Pay.
• Innovative Solutions for Your Daily Transactions.

FAQ Section

Frequently Asked Questions About NFC Pay

Here are answers to some common questions about NFC Pay. We aim to provide clear and concise information to help you understand how our platform works and how it can benefit you. If you have any further inquiries, please don’t hesitate to contact our support team.

How do I register for NFC Pay?

Download the app and sign up using your email or phone number, then complete the verification process.

Is my payment information secure?

Yes, we use advanced encryption and security protocols to protect your payment details.

Can I add multiple cards to my NFC Pay wallet?

Absolutely, you can link multiple debit or credit cards to your wallet.

How do I transfer money to another user?

Go to the transfer section, select the recipient, enter the amount, and authorize the transfer.

What should I do if I forget my PIN?

Use the “Forgot PIN” feature in the app to reset it following the provided instructions.

How can I activate my merchant account?

Sign up for a merchant account through the app and follow the setup instructions to start accepting payments.

Can I track my payment status?

Yes, you can view and track your payment status in the account dashboard