<?php

// Init version
define(
    '_CLITOR_IS_',
    '1.3.0'
);

// Init helper
function _exec(
    string $processor,
    string $command
): mixed
{
    if (false !== exec(sprintf('%s %s', $processor, $command), $output))
    {
        $rows = [];

        foreach($output as $row)
        {
            $rows[] = $row;
        }

        if ($result = @json_decode(implode(PHP_EOL, $rows)))
        {
            return $result;
        }
    }

    return false;
}

// Check processor exits
if (empty($argv[1]))
{
    print(
        'processor required' . PHP_EOL
    );

    exit;
}

if (!file_exists($argv[1]))
{
    print(
        'processor does not exist' . PHP_EOL
    );

    exit;
}

// Check namespace provided
if (empty($argv[2]))
{
   print(
       'namespace required' . PHP_EOL
   );

   exit;
}

// Check target file does not exist yet
if (!file_exists($argv[3]))
{
    print(
        'filename does not exist' . PHP_EOL
    );

    exit;
}

// Get namespace meta
$clitoris = _exec(
    $argv[1],
    sprintf(
        "keva_get %s _CLITOR_IS_",
        $argv[2]
    )
);

if (empty($clitoris->value))
{
    print(
        '_CLITOR_IS_ not found for this namespace' . PHP_EOL
    );

    exit;
}

// Validate protocol
if (empty($clitoris->value))
{
    print(
        '_CLITOR_IS_ not found' . PHP_EOL
    );

    exit;
}

// Split content to smaller parts (according to the protocol limits)
$pieces = str_split(
    base64_encode(
        file_get_contents(
            $argv[3]
        )
    ),
    3072
);

// Count total pieces
$total = count(
    $pieces
);

// Begin pieces saving
foreach ($pieces as $key => $value)
{
    // Check piece stored in blockchain is valid
    $piece = _exec(
        $argv[1],
        sprintf(
            "keva_get %s %d",
            $argv[2],
            $key
        )
    );

    // Piece value not found
    if (empty($piece->value))
    {
        printf(
            'Piece %s/%s value not found, create new record...' . PHP_EOL,
            $key + 1,
            $total
        );
    }

    // Piece value invalid, begin blockchain record
    else if ($piece->value != $value)
    {
        printf(
            'Piece %s/%s value invalid, overwrite record...' . PHP_EOL,
            $key + 1,
            $total,
        );
    }

    // Piece valid
    else
    {
        printf(
            'Piece %s/%s - OK' . PHP_EOL,
            $key + 1,
            $total
        );

        continue; // skip next operations for this piece
    }

    // Record new piece
    print_r(
        _exec(
            $argv[1],
            sprintf(
                "keva_put %s %d %s",
                $argv[2],
                $key,
                $value
            )
        )
    );

    // Apply delays to prevent too-long-mempool-chain reject
    $delay = isset($argv[3]) && $argv[3] > 0 ? (int) $argv[3] : 60;

    printf(
        'Piece %s/%s sent, waiting %s seconds...' . PHP_EOL,
        $key + 1,
        $total,
        $delay
    );

    sleep(
        $delay
    );
}

// Done
printf(
    'data successfully synced with namespace "%s"' . PHP_EOL,
    $argv[2]
);