<?php
namespace nur\io\csv;

use nur\A;
use nur\ref\ref_csv;

class flavours {
  const MAP = [
    "oo" => ref_csv::OO_FLAVOUR,
    "ooffice" => ref_csv::OO_FLAVOUR,
    ref_csv::OO_NAME => ref_csv::OO_FLAVOUR,
    "xl" => ref_csv::XL_FLAVOUR,
    "excel" => ref_csv::XL_FLAVOUR,
    ref_csv::XL_NAME => ref_csv::XL_FLAVOUR,
  ];
  
  const ENCODINGS = [
    ref_csv::OO_FLAVOUR => ref_csv::OO_ENCODING,
    ref_csv::XL_FLAVOUR => ref_csv::XL_ENCODING,
  ];
  
  static final function verifix(string $flavour): string {
    if (array_key_exists(strtolower($flavour), self::MAP)) {
      $flavour = self::MAP[strtolower($flavour)];
    }
    if (strlen($flavour) < 1) $flavour .= ",";
    if (strlen($flavour) < 2) $flavour .= "\"";
    if (strlen($flavour) < 3) $flavour .= "\\";
    return $flavour;
  }

  static final function get_name(string $flavour): string {
    if ($flavour == ref_csv::OO_FLAVOUR) return ref_csv::OO_NAME;
    elseif ($flavour == ref_csv::XL_FLAVOUR) return ref_csv::XL_NAME;
    else return $flavour;
  }
  
  static final function get_params(string $flavour): array {
    return [$flavour[0], $flavour[1], $flavour[2]];
  }

  static final function get_encoding(string $flavour): ?string {
    return A::get(self::ENCODINGS, $flavour);
  }
}