<?php

namespace LWVendor\PhpOffice\PhpSpreadsheet\Calculation\LookupRef;

use LWVendor\PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled;
use LWVendor\PhpOffice\PhpSpreadsheet\Calculation\Exception;
use LWVendor\PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
use LWVendor\PhpOffice\PhpSpreadsheet\Shared\StringHelper;
class VLookup extends LookupBase
{
    use ArrayEnabled;
    /**
     * VLOOKUP
     * The VLOOKUP function searches for value in the left-most column of lookup_array and returns the value
     *     in the same row based on the index_number.
     *
     * @param mixed $lookupValue The value that you want to match in lookup_array
     * @param mixed $lookupArray The range of cells being searched
     * @param mixed $indexNumber The column number in table_array from which the matching value must be returned.
     *                                The first column is 1.
     * @param mixed $notExactMatch determines if you are looking for an exact match based on lookup_value
     *
     * @return mixed The value of the found cell
     */
    public static function lookup($lookupValue, $lookupArray, $indexNumber, $notExactMatch = \true)
    {
        if (\is_array($lookupValue) || \is_array($indexNumber)) {
            return self::evaluateArrayArgumentsIgnore([self::class, __FUNCTION__], 1, $lookupValue, $lookupArray, $indexNumber, $notExactMatch);
        }
        $notExactMatch = (bool) ($notExactMatch ?? \true);
        try {
            self::validateLookupArray($lookupArray);
            $indexNumber = self::validateIndexLookup($lookupArray, $indexNumber);
        } catch (Exception $e) {
            return $e->getMessage();
        }
        $f = \array_keys($lookupArray);
        $firstRow = \array_pop($f);
        if (!\is_array($lookupArray[$firstRow]) || $indexNumber > \count($lookupArray[$firstRow])) {
            return ExcelError::REF();
        }
        $columnKeys = \array_keys($lookupArray[$firstRow]);
        $returnColumn = $columnKeys[--$indexNumber];
        $firstColumn = \array_shift($columnKeys) ?? 1;
        if (!$notExactMatch) {
            /** @var callable */
            $callable = [self::class, 'vlookupSort'];
            \uasort($lookupArray, $callable);
        }
        $rowNumber = self::vLookupSearch($lookupValue, $lookupArray, $firstColumn, $notExactMatch);
        if ($rowNumber !== null) {
            // return the appropriate value
            return $lookupArray[$rowNumber][$returnColumn];
        }
        return ExcelError::NA();
    }
    private static function vlookupSort(array $a, array $b) : int
    {
        \reset($a);
        $firstColumn = \key($a);
        $aLower = StringHelper::strToLower((string) $a[$firstColumn]);
        $bLower = StringHelper::strToLower((string) $b[$firstColumn]);
        if ($aLower == $bLower) {
            return 0;
        }
        return $aLower < $bLower ? -1 : 1;
    }
    /**
     * @param mixed $lookupValue The value that you want to match in lookup_array
     * @param  int|string $column
     */
    private static function vLookupSearch($lookupValue, array $lookupArray, $column, bool $notExactMatch) : ?int
    {
        $lookupLower = StringHelper::strToLower((string) $lookupValue);
        $rowNumber = null;
        foreach ($lookupArray as $rowKey => $rowData) {
            $bothNumeric = \is_numeric($lookupValue) && \is_numeric($rowData[$column]);
            $bothNotNumeric = !\is_numeric($lookupValue) && !\is_numeric($rowData[$column]);
            $cellDataLower = StringHelper::strToLower((string) $rowData[$column]);
            // break if we have passed possible keys
            if ($notExactMatch && ($bothNumeric && $rowData[$column] > $lookupValue || $bothNotNumeric && $cellDataLower > $lookupLower)) {
                break;
            }
            $rowNumber = self::checkMatch($bothNumeric, $bothNotNumeric, $notExactMatch, $rowKey, $cellDataLower, $lookupLower, $rowNumber);
        }
        return $rowNumber;
    }
}