<?php declare(strict_types = 0);
/*
** Zabbix
** Copyright (C) 2001-2023 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
**/


namespace Zabbix\Widgets\Fields;

use Zabbix\Widgets\CWidgetField;

class CWidgetFieldColumnsList extends CWidgetField {

	// Source of value to display in column.
	public const DATA_ITEM_VALUE = 1;
	public const DATA_HOST_NAME = 2;
	public const DATA_TEXT = 3;

	// Column value display type.
	public const DISPLAY_AS_IS = 1;
	public const DISPLAY_BAR = 2;
	public const DISPLAY_INDICATORS = 3;

	// Where to select data for aggregation function.
	public const HISTORY_DATA_AUTO = 1;
	public const HISTORY_DATA_HISTORY = 2;
	public const HISTORY_DATA_TRENDS = 3;

	public const DEFAULT_DECIMAL_PLACES = 2;

	// Predefined colors for thresholds. Each next threshold takes next sequential value from palette.
	public const THRESHOLDS_DEFAULT_COLOR_PALETTE = [
		'FF465C', 'B0AF07', '0EC9AC', '524BBC', 'ED1248', 'D1E754', '2AB5FF', '385CC7', 'EC1594', 'BAE37D',
		'6AC8FF', 'EE2B29', '3CA20D', '6F4BBC', '00A1FF', 'F3601B', '1CAE59', '45CFDB', '894BBC', '6D6D6D'
	];

	public function __construct(string $name, string $label = null) {
		parent::__construct($name, $label);

		$this
			->setSaveType(ZBX_WIDGET_FIELD_TYPE_STR)
			->setValidationRules(['type' => API_OBJECTS, 'fields' => [
				'name'					=> ['type' => API_STRING_UTF8, 'default' => '', 'length' => 255],
				'data'					=> ['type' => API_INT32, 'flags' => API_REQUIRED, 'in' => implode(',', [self::DATA_ITEM_VALUE, self::DATA_HOST_NAME, self::DATA_TEXT])],
				'item'					=> ['type' => API_MULTIPLE, 'rules' => [
												['if' => ['field' => 'data', 'in' => self::DATA_ITEM_VALUE],
													'type' => API_STRING_UTF8, 'flags' => API_REQUIRED, 'length' => 255],
												['else' => true,
													'type' => API_STRING_UTF8]
				]],
				'timeshift'				=> ['type' => API_TIME_UNIT, 'in' => implode(':', [ZBX_MIN_TIMESHIFT, ZBX_MAX_TIMESHIFT])],
				'aggregate_function'	=> ['type' => API_INT32, 'in' => implode(',', [AGGREGATE_NONE, AGGREGATE_MIN, AGGREGATE_MAX, AGGREGATE_AVG, AGGREGATE_COUNT, AGGREGATE_SUM, AGGREGATE_FIRST, AGGREGATE_LAST]), 'default' => AGGREGATE_NONE],
				'aggregate_interval'	=> ['type' => API_MULTIPLE, 'rules' => [
												['if' => ['field' => 'aggregate_function', 'in' => implode(',', [AGGREGATE_MIN, AGGREGATE_MAX, AGGREGATE_AVG, AGGREGATE_COUNT, AGGREGATE_SUM, AGGREGATE_FIRST, AGGREGATE_LAST])],
													'type' => API_TIME_UNIT, 'flags' => API_REQUIRED | API_NOT_EMPTY | API_TIME_UNIT_WITH_YEAR, 'in' => implode(':', [1, ZBX_MAX_TIMESHIFT])],
												['else' => true,
													'type' => API_STRING_UTF8]
				]],
				'display'				=> ['type' => API_MULTIPLE, 'rules' => [
												['if' => ['field' => 'data', 'in' => self::DATA_ITEM_VALUE],
													'type' => API_INT32, 'default' => self::DISPLAY_AS_IS, 'in' => implode(',', [self::DISPLAY_AS_IS, self::DISPLAY_BAR, self::DISPLAY_INDICATORS])],
												['else' => true,
													'type' => API_INT32]
				]],
				'history'				=> ['type' => API_MULTIPLE, 'rules' => [
												['if' => ['field' => 'data', 'in' => self::DATA_ITEM_VALUE],
													'type' => API_INT32, 'default' => self::HISTORY_DATA_AUTO, 'in' => implode(',', [self::HISTORY_DATA_AUTO, self::HISTORY_DATA_HISTORY, self::HISTORY_DATA_TRENDS])],
												['else' => true,
													'type' => API_INT32]
				]],
				'base_color'			=> ['type' => API_COLOR],
				'min'					=> ['type' => API_NUMERIC],
				'max'					=> ['type' => API_NUMERIC],
				'decimal_places'		=> ['type' => API_INT32, 'in' => '0:10', 'default' => self::DEFAULT_DECIMAL_PLACES],
				'thresholds'			=> ['type' =>  API_OBJECTS, 'uniq' => [['threshold']], 'fields' => [
					'color'					=> ['type' => API_COLOR],
					'threshold'				=> ['type' => API_NUMERIC]
				]],
				'text'					=> ['type' => API_MULTIPLE, 'rules' => [
												['if' => ['field' => 'data', 'in' => self::DATA_TEXT],
													'type' => API_STRING_UTF8, 'flags' => API_REQUIRED | API_NOT_EMPTY, 'length' => 255],
												['else' => true,
													'type' => API_STRING_UTF8]
				]]
			]]);
	}

	public function setValue($value): self {
		$this->value = (array) $value;

		return $this;
	}

	public function toApi(array &$widget_fields = []): void {
		$fields = [
			'name' => ZBX_WIDGET_FIELD_TYPE_STR,
			'data' => ZBX_WIDGET_FIELD_TYPE_INT32,
			'item' => ZBX_WIDGET_FIELD_TYPE_STR,
			'timeshift' => ZBX_WIDGET_FIELD_TYPE_STR,
			'aggregate_function' => ZBX_WIDGET_FIELD_TYPE_INT32,
			'aggregate_interval' => ZBX_WIDGET_FIELD_TYPE_STR,
			'min' => ZBX_WIDGET_FIELD_TYPE_STR,
			'max' => ZBX_WIDGET_FIELD_TYPE_STR,
			'decimal_places' => ZBX_WIDGET_FIELD_TYPE_INT32,
			'display' => ZBX_WIDGET_FIELD_TYPE_INT32,
			'history' => ZBX_WIDGET_FIELD_TYPE_INT32,
			'base_color' => ZBX_WIDGET_FIELD_TYPE_STR,
			'text' => ZBX_WIDGET_FIELD_TYPE_STR
		];

		foreach ($this->getValue() as $column_index => $val) {
			foreach (array_intersect_key($fields, $val) as $field => $field_type) {
				$widget_fields[] = [
					'type' => $field_type,
					'name' => implode('.', [$this->name, $field, $column_index]),
					'value' => $val[$field]
				];
			}

			if (!array_key_exists('thresholds', $val) || !$val['thresholds']) {
				continue;
			}

			foreach ($val['thresholds'] as $threshold_index => $threshold) {
				$widget_fields[] = [
					'type' => ZBX_WIDGET_FIELD_TYPE_STR,
					'name' => implode('.', [$this->name.'thresholds.color', $column_index, $threshold_index]),
					'value' => $threshold['color']
				];
				$widget_fields[] = [
					'type' => ZBX_WIDGET_FIELD_TYPE_STR,
					'name' => implode('.', [$this->name.'thresholds.threshold', $column_index, $threshold_index]),
					'value' => $threshold['threshold']
				];
			}
		}
	}
}