From b0fd14cd71d60c1b9926aff10fe9e8eeebe1285c Mon Sep 17 00:00:00 2001
From: Asko Nomm <asko@bien.ee>
Date: Tue, 22 Feb 2022 21:32:37 +0100
Subject: Lots of documentation and basic tests

---
 src/Validator.php | 175 ------------------------------------------------------
 1 file changed, 175 deletions(-)
 delete mode 100644 src/Validator.php

(limited to 'src/Validator.php')

diff --git a/src/Validator.php b/src/Validator.php
deleted file mode 100644
index 72ae8ee..0000000
--- a/src/Validator.php
+++ /dev/null
@@ -1,175 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Askonomm\Validator;
-
-/**
- * The Validator takes in an array of fields, an array of  
- * rules and optionally an array of validators. If no validators 
- * are provided, default validators will be used instead, which are:
- * 
- * - `Validators::len()`
- * - `Validators::email()`
- * - `Validators::required()`
- * 
- * The key of each item in the `$fields` array must correspond to the 
- * the key of each item in the `$rules` array, so that Validator 
- * would know how to connect the two to each other.
- * 
- * The `$rules` must have a value that is a string where the rules
- * are separated by a `|` character, and each rule must match the key of
- * the implemented validator, such as `len`, `email` or one that you have 
- * implemented yourself. Additionally, each rule can take in a modifier, 
- * where the name of the rule and the modifier is separated by a `:` character.
- * 
- * For example, say we have a validator called `len` which takes a modifier that
- * lets that validator validate the length of a string, in such a case we'd write
- * that rule as `len:8`, which would indicate using a `len` validator and passing 
- * a modifier with the value `8` to it. 
- * 
- * Example usage of Validator: 
- * 
- * ```php
- * $fields = ['email' => 'asko@bien.ee'];
- * $rules = ['email' => 'required|email'];
- * $validator = new Validator($fields, $rules);
- * 
- * if ($validator->fails()) {
- *  return $validator->errors();
- * }
- * ```
- * 
- * If you want to implement your own validators then simply create 
- * a data structure that looks like this:
- * 
- * ```php
- * // Create the validator
- * $validator = [
- *  'error' => function(string $field, $modifier): string {
- *      return "${field} had some sort of an error.";
- *  },
- *  'validates' => function(string $value, $modifier): bool {
- *      // validate your $value here and return true if 
- *      // the validation succeeded, or false if there was
- *      // an error, in which case the rule's error will be
- *      // added to the array of errors used by Validator.
- *  }
- * ];
- * 
- * // Add validator to Validator
- * $validator = new Validator($fields, $rules, [
- *  'rule-name' => $validator
- * ]);
- * ```
- * 
- * If you want to also use the default validators, and add yours as an extra, 
- * simply join the array of your validators with the array that you get from 
- * `$validator->defaultValidators()`, for example:
- * 
- * ```php
- * $validators = [
- *  ...$this->defaultValidators(),
- *  'rule-name' => $validator,
- * ]);
- * 
- * $validator = new Validator($fields, $rules, $validators);
- * ```
- * @author Asko Nomm <asko@bien.ee>
- */
-class Validator
-{
-    private array $errors = [];
-
-    public function __construct(
-        private array $fields,
-        private array $rules,
-        array $validators = [],
-    ) {
-        if (empty($validators)) {
-            $this->validators = $this->defaultValidators();
-        }
-
-        $this->validate();
-    }
-
-    /**
-     * Returns the default, built-in validators.
-     *
-     * @return array
-     */
-    public function defaultValidators(): array
-    {
-        return [
-            'len' => Validators::len(),
-            'email' => Validators::email(),
-            'required' => Validators::required(),
-        ];
-    }
-
-    /**
-     * Runs `$this->rules` over `$this->fields` to construct 
-     * potential errors that will be stored as an array of strings 
-     * in `$this->errors`.
-     *
-     * @return void
-     */
-    private function validate(): void
-    {
-        foreach ($this->rules as $field => $rule) {
-            $value = $this->fields[$field];
-
-            foreach (explode('|', $rule) as $item) {
-                if (str_contains($item, ':')) {
-                    [$name, $modifier] = explode(':', $item);
-
-                    if (!$this->rules[$name]['validates']($value, $modifier)) {
-                        $this->errors[] = $this->rules[$name]['error']($field, $modifier);
-                    }
-                } else {
-
-                    if (!$this->rules[$item]['validates']($value)) {
-                        $this->errors[] = $this->rules[$item]['error']($field);
-                    }
-                }
-            }
-        }
-    }
-
-    /**
-     * Returns a boolean `true` if there have been any errors.
-     * Returns `false` otherwise.
-     *
-     * @return boolean
-     */
-    public function fails(): bool
-    {
-        return count($this->errors) !== 0;
-    }
-
-    /**
-     * Returns an array of strings where each string 
-     * is a single error that happened during validation.
-     * 
-     * @return array
-     */
-    public function errors(): array
-    {
-        return $this->errors;
-    }
-
-    /**
-     * If errors are present, returns the first one.
-     * Otherwise returns an empty string.
-     *
-     * @return string
-     */
-    public function firstError(): string
-    {
-        if (count($this->errors) > 0) {
-            return $this->errors[0];
-        }
-
-        return '';
-    }
-}
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