MessageRetriever::pickMessage()   A
last analyzed

Complexity

Conditions 5
Paths 8

Size

Total Lines 17
Code Lines 8

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
eloc 8
c 1
b 0
f 0
dl 0
loc 17
rs 9.6111
cc 5
nc 8
nop 3
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<?php
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/**
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 * This file is part of byrokrat\autogiro.
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 *
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 * byrokrat\autogiro is free software: you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License as published
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 * by the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * byrokrat\autogiro is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with byrokrat\autogiro. If not, see <http://www.gnu.org/licenses/>.
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 *
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 * Copyright 2016-21 Hannes Forsgård
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 */
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declare(strict_types=1);
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namespace byrokrat\autogiro;
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class MessageRetriever
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{
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    /**
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     * Match all wildcard key
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     */
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    public const WILDCARD = '*';
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    /**
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     * Default location of messages file
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     */
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    public const DEFAULT_MESSAGE_STORE = __DIR__ . '/messages.json';
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    /**
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     * @var array<string, array>
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     */
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    private $messages;
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    /**
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     * @param array<string, array> $messages
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     */
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    public function __construct(array $messages = [])
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    {
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        $this->messages = $messages ?: json_decode((string)file_get_contents(self::DEFAULT_MESSAGE_STORE), true);
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    }
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    public function readMessage(string ...$keys): string
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    {
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        return $this->pickMessage($this->messages, ...$keys);
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    }
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    /**
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     * @param array<string, array> $messages
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     */
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    private function pickMessage(array $messages, string $key, string ...$additionalKeys): string
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    {
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        $value = $messages[$key] ?? [];
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        if (!empty($additionalKeys)) {
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            $value = $this->pickMessage((array)$value, ...$additionalKeys);
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        }
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        if (!$value && $key != self::WILDCARD) {
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            $value = $this->pickMessage($messages, self::WILDCARD, ...$additionalKeys);
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        }
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        if (!is_scalar($value)) {
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            return '';
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        }
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        return (string)$value;
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    }
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}
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