/* 
 * Mirai. Copyright (C) 2024 Vyn
 * This file is licensed under version 3 of the GNU General Public License (GPL-3.0-only)
 * The license can be found in the LICENSE file or at https://www.gnu.org/licenses/gpl-3.0.txt
 */

#include "TasksView.h"
#include "cpp-utils/vector.h"
#include <algorithm>
#include <string>

namespace mirai {


	TasksView::TasksView(std::shared_ptr<std::vector<TasksFile>> files) : files(files) {
		update();
	}

	TaskItem& TasksView::operator[](int index) {
		return *(tasksToShow.at(index));
	}

	int TasksView::count() const { return tasksToShow.size(); }

	void TasksView::update() {
		tasksToShow.clear();
		for (auto& file : *files) {
			for (auto& task : file.getTasks()) {
				std::function<bool(const std::string&)> f = [&](const std::string& tag) {
					return task->hasTag(tag);
				};
				if (tagsFilter.size() > 0 && !vectorUtils::containsAll(tagsFilter, task->getTags()))
					continue;
				tasksToShow.push_back(task.get());
			}
		}
	}

	void TasksView::addTagFilter(const std::string& tag) {
		tagsFilter.push_back(tag);
		update();
	}

	void TasksView::removeTagFilter(const std::string& tag) {
		tagsFilter.erase(std::remove_if(tagsFilter.begin(), tagsFilter.end(), [&] (const auto& tagInFilter){
			return tag == tagInFilter;
		}));
		update();
	}

	void TasksView::removeFilters() {
		tagsFilter.clear();
		update();
	}

	const std::vector<std::string>& TasksView::getActiveTagsFilter() {
		return tagsFilter;
	}
}