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<?php
/**
 * Ensures that array are indented one tab stop.
 *
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/master/licence.txt BSD Licence
 */

namespace PHP_CodeSniffer\Standards\Generic\Sniffs\Arrays;

use PHP_CodeSniffer\Sniffs\AbstractArraySniff;
use PHP_CodeSniffer\Util\Tokens;

class ArrayIndentSniff extends AbstractArraySniff
{

/**
     * The number of spaces each array key should be indented.
     *
     * @var integer
     */
    public $indent = 4;

/**
     * Processes a single-line array definition.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile  The current file being checked.
     * @param int                         $stackPtr   The position of the current token
     *                                                in the stack passed in $tokens.
     * @param int                         $arrayStart The token that starts the array definition.
     * @param int                         $arrayEnd   The token that ends the array definition.
     * @param array                       $indices    An array of token positions for the array keys,
     *                                                double arrows, and values.
     *
     * @return void
     */
    public function processSingleLineArray($phpcsFile, $stackPtr, $arrayStart, $arrayEnd, $indices)
    {

}//end processSingleLineArray()

/**
     * Processes a multi-line array definition.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile  The current file being checked.
     * @param int                         $stackPtr   The position of the current token
     *                                                in the stack passed in $tokens.
     * @param int                         $arrayStart The token that starts the array definition.
     * @param int                         $arrayEnd   The token that ends the array definition.
     * @param array                       $indices    An array of token positions for the array keys,
     *                                                double arrows, and values.
     *
     * @return void
     */
    public function processMultiLineArray($phpcsFile, $stackPtr, $arrayStart, $arrayEnd, $indices)
    {
        $tokens = $phpcsFile->getTokens();

// Determine how far indented the entire array declaration should be.
        $ignore     = Tokens::$emptyTokens;
        $ignore[]   = T_DOUBLE_ARROW;
        $prev       = $phpcsFile->findPrevious($ignore, ($stackPtr - 1), null, true);
        $start      = $phpcsFile->findStartOfStatement($prev);
        $first      = $phpcsFile->findFirstOnLine(T_WHITESPACE, $start, true);
        $baseIndent = ($tokens[$first]['column'] - 1);

$first       = $phpcsFile->findFirstOnLine(T_WHITESPACE, $stackPtr, true);
        $startIndent = ($tokens[$first]['column'] - 1);

// If the open brace is not indented to at least to the level of the start
        // of the statement, the sniff will conflict with other sniffs trying to
        // check indent levels because it's not valid. But we don't enforce exactly
        // how far indented it should be.
        if ($startIndent < $baseIndent) {
            $pluralizeSpace = 's';
            if ($baseIndent === 1) {
                $pluralizeSpace = '';
            }

$error = 'Array open brace not indented correctly; expected at least %s space%s but found %s';
            $data  = [
                $baseIndent,
                $pluralizeSpace,
                $startIndent,
            ];
            $fix   = $phpcsFile->addFixableError($error, $stackPtr, 'OpenBraceIncorrect', $data);
            if ($fix === true) {
                $padding = str_repeat(' ', $baseIndent);
                if ($startIndent === 0) {
                    $phpcsFile->fixer->addContentBefore($first, $padding);
                } else {
                    $phpcsFile->fixer->replaceToken(($first - 1), $padding);
                }
            }

return;
        }//end if

$expectedIndent = ($startIndent + $this->indent);

foreach ($indices as $index) {
            if (isset($index['index_start']) === true) {
                $start = $index['index_start'];
            } else {
                $start = $index['value_start'];
            }

$prev = $phpcsFile->findPrevious(Tokens::$emptyTokens, ($start - 1), null, true);
            if ($tokens[$prev]['line'] === $tokens[$start]['line']) {
                // This index isn't the only content on the line
                // so we can't check indent rules.
                continue;
            }

$first = $phpcsFile->findFirstOnLine(T_WHITESPACE, $start, true);

$foundIndent = ($tokens[$first]['column'] - 1);
            if ($foundIndent === $expectedIndent) {
                continue;
            }

$pluralizeSpace = 's';
            if ($expectedIndent === 1) {
                $pluralizeSpace = '';
            }

$error = 'Array key not indented correctly; expected %s space%s but found %s';
            $data  = [
                $expectedIndent,
                $pluralizeSpace,
                $foundIndent,
            ];
            $fix   = $phpcsFile->addFixableError($error, $first, 'KeyIncorrect', $data);
            if ($fix === false) {
                continue;
            }

$padding = str_repeat(' ', $expectedIndent);
            if ($foundIndent === 0) {
                $phpcsFile->fixer->addContentBefore($first, $padding);
            } else {
                $phpcsFile->fixer->replaceToken(($first - 1), $padding);
            }
        }//end foreach

$prev = $phpcsFile->findPrevious(T_WHITESPACE, ($arrayEnd - 1), null, true);
        if ($tokens[$prev]['line'] === $tokens[$arrayEnd]['line']) {
            $error = 'Closing brace of array declaration must be on a new line';
            $fix   = $phpcsFile->addFixableError($error, $arrayEnd, 'CloseBraceNotNewLine');
            if ($fix === true) {
                $padding = $phpcsFile->eolChar.str_repeat(' ', $startIndent);
                $phpcsFile->fixer->addContentBefore($arrayEnd, $padding);
            }

return;
        }

// The close brace must be indented one stop less.
        $foundIndent = ($tokens[$arrayEnd]['column'] - 1);
        if ($foundIndent === $startIndent) {
            return;
        }

$pluralizeSpace = 's';
        if ($startIndent === 1) {
            $pluralizeSpace = '';
        }

$error = 'Array close brace not indented correctly; expected %s space%s but found %s';
        $data  = [
            $startIndent,
            $pluralizeSpace,
            $foundIndent,
        ];
        $fix   = $phpcsFile->addFixableError($error, $arrayEnd, 'CloseBraceIncorrect', $data);
        if ($fix === false) {
            return;
        }

$padding = str_repeat(' ', $startIndent);
        if ($foundIndent === 0) {
            $phpcsFile->fixer->addContentBefore($arrayEnd, $padding);
        } else {
            $phpcsFile->fixer->replaceToken(($arrayEnd - 1), $padding);
        }

}//end processMultiLineArray()

}//end class

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