<?php

namespace Phpactor\PathFinder;

use Phpactor\PathFinder\Exception\NoPlaceHoldersException;
use RuntimeException;
use Webmozart\PathUtil\Path;

class Pattern
{
    const TOKEN_REGEX = '{<([a-z-]+?)>}';

    /** @var string */
    private $regex;

    /** @var array<string> */
    private $tokenNames;

    /** @var string */
    private $pattern;

    /**
     * @param array<string> $tokenNames
     */
    public function __construct(string $regex, string $pattern, array $tokenNames)
    {
        $this->regex = $regex;
        $this->tokenNames = $tokenNames;
        $this->pattern = $pattern;
    }

    public static function fromPattern(string $pattern): self
    {
        preg_match_all(self::TOKEN_REGEX, $pattern, $matches);

        [$tokens, $tokenNames] = $matches;

        $regex = $pattern;
        foreach (array_values($matches[0]) as $index => $token) {
            $greedy = $index + 1 !== count($tokenNames);
            $regex = strtr($regex, [$token => sprintf('(?%s%s+)', $token, $greedy ? '[^/]' : '.')]);
        }

        if (empty($tokenNames)) {
            throw new NoPlaceHoldersException(sprintf(
                'File pattern "%s" does not contain any <placeholders>',
                $pattern
            ));
        }

        return new self(sprintf('{%s$}', $regex), $pattern, $tokenNames);
    }

    public function fits(string $filePath): bool
    {
        return (bool)preg_match($this->regex, Path::canonicalize($filePath));
    }

    /**
     * @return array<string, string>
     */
    public function tokens(string $filePath): array
    {
        $filePath = Path::canonicalize($filePath);

        if (!preg_match($this->regex, $filePath, $matches)) {
            throw new RuntimeException(sprintf(
                'Error occurred performing regex on filepath "%s" with regex "%s"',
                $filePath,
                $this->regex
            ));
        }

        return array_intersect_key($matches, (array)array_combine($this->tokenNames, $this->tokenNames));
    }

    /**
     * @param array<string,string> $tokens
     */
    public function replaceTokens(array $tokens): string
    {
        return $this->cleanRemainingTokens($this->replaceTokensWithValues($tokens));
    }

    public function toString(): string
    {
        return $this->pattern;
    }

    /**
     * @param array<string,string> $tokens
     */
    private function replaceTokensWithValues(array $tokens): string
    {
        return strtr($this->pattern, (array)array_combine(array_map(function (string $key) {
            return '<' . $key . '>';
        }, array_keys($tokens)), array_values($tokens)));
    }

    private function cleanRemainingTokens(string $filePath): string
    {
        return strtr($filePath, (array)array_combine(array_map(function (string $tokenName) {
            return '<' . $tokenName . '>';
        }, $this->tokenNames), array_fill(0, count($this->tokenNames), '')));
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NTUyMzkyMDcwNTY1MjI1MyA5MDc2MTYzMzA0Nzc5OTggMjc5NTA4ODYxNzgwMDIwNQ==