/*
 * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.micode.notes.tool;

import android.content.Context;
import android.preference.PreferenceManager;

import net.micode.notes.R;
import net.micode.notes.ui.NotesPreferenceActivity;

/**
 * 资源解析工具类，用于管理笔记应用的各种资源ID
 */
public class ResourceParser {
    // 背景颜色常量定义
    public static final int YELLOW           = 0;
    public static final int BLUE             = 1;
    public static final int WHITE            = 2;
    public static final int GREEN            = 3;
    public static final int RED              = 4;

    public static final int BG_DEFAULT_COLOR = YELLOW; // 默认背景颜色

    // 字体大小常量定义
    public static final int TEXT_SMALL       = 0;
    public static final int TEXT_MEDIUM      = 1;
    public static final int TEXT_LARGE       = 2;
    public static final int TEXT_SUPER       = 3;

    public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM; // 默认字体大小

    /**
     * 笔记背景资源类，提供编辑界面背景资源获取
     */
    public static class NoteBgResources {
        // 编辑区域背景资源数组
        private final static int [] BG_EDIT_RESOURCES = new int [] {
            R.drawable.edit_yellow,
            R.drawable.edit_blue,
            R.drawable.edit_white,
            R.drawable.edit_green,
            R.drawable.edit_red
        };

        // 编辑区域标题背景资源数组
        private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] {
            R.drawable.edit_title_yellow,
            R.drawable.edit_title_blue,
            R.drawable.edit_title_white,
            R.drawable.edit_title_green,
            R.drawable.edit_title_red
        };

        // 获取笔记编辑区域背景资源
        public static int getNoteBgResource(int id) {
            return BG_EDIT_RESOURCES[id];
        }

        // 获取笔记标题背景资源
        public static int getNoteTitleBgResource(int id) {
            return BG_EDIT_TITLE_RESOURCES[id];
        }
    }

    /**
     * 获取默认背景ID
     * @param context 上下文对象
     * @return 背景资源ID
     */
    public static int getDefaultBgId(Context context) {
        // 检查偏好设置是否启用了随机背景颜色
        if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean(
                NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) {
            return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length); // 随机选择背景
        } else {
            return BG_DEFAULT_COLOR; // 返回默认背景
        }
    }

    /**
     * 笔记列表项背景资源类，提供列表项不同位置的背景资源
     */
    public static class NoteItemBgResources {
        // 列表第一项背景资源
        private final static int [] BG_FIRST_RESOURCES = new int [] {
            R.drawable.list_yellow_up,
            R.drawable.list_blue_up,
            R.drawable.list_white_up,
            R.drawable.list_green_up,
            R.drawable.list_red_up
        };

        // 列表中间项背景资源
        private final static int [] BG_NORMAL_RESOURCES = new int [] {
            R.drawable.list_yellow_middle,
            R.drawable.list_blue_middle,
            R.drawable.list_white_middle,
            R.drawable.list_green_middle,
            R.drawable.list_red_middle
        };

        // 列表最后一项背景资源
        private final static int [] BG_LAST_RESOURCES = new int [] {
            R.drawable.list_yellow_down,
            R.drawable.list_blue_down,
            R.drawable.list_white_down,
            R.drawable.list_green_down,
            R.drawable.list_red_down,
        };

        // 列表单项背景资源(当列表只有一项时使用)
        private final static int [] BG_SINGLE_RESOURCES = new int [] {
            R.drawable.list_yellow_single,
            R.drawable.list_blue_single,
            R.drawable.list_white_single,
            R.drawable.list_green_single,
            R.drawable.list_red_single
        };

        // 获取列表第一项背景资源
        public static int getNoteBgFirstRes(int id) {
            return BG_FIRST_RESOURCES[id];
        }

        // 获取列表最后一项背景资源
        public static int getNoteBgLastRes(int id) {
            return BG_LAST_RESOURCES[id];
        }

        // 获取列表单项背景资源
        public static int getNoteBgSingleRes(int id) {
            return BG_SINGLE_RESOURCES[id];
        }

        // 获取列表中间项背景资源
        public static int getNoteBgNormalRes(int id) {
            return BG_NORMAL_RESOURCES[id];
        }

        // 获取文件夹背景资源
        public static int getFolderBgRes() {
            return R.drawable.list_folder;
        }
    }

    /**
     * 小部件背景资源类，提供不同尺寸小部件的背景资源
     */
    public static class WidgetBgResources {
        // 2x大小小部件背景资源
        private final static int [] BG_2X_RESOURCES = new int [] {
            R.drawable.widget_2x_yellow,
            R.drawable.widget_2x_blue,
            R.drawable.widget_2x_white,
            R.drawable.widget_2x_green,
            R.drawable.widget_2x_red,
        };

        // 获取2x大小小部件背景资源
        public static int getWidget2xBgResource(int id) {
            return BG_2X_RESOURCES[id];
        }

        // 4x大小小部件背景资源
        private final static int [] BG_4X_RESOURCES = new int [] {
            R.drawable.widget_4x_yellow,
            R.drawable.widget_4x_blue,
            R.drawable.widget_4x_white,
            R.drawable.widget_4x_green,
            R.drawable.widget_4x_red
        };

        // 获取4x大小小部件背景资源
        public static int getWidget4xBgResource(int id) {
            return BG_4X_RESOURCES[id];
        }
    }

    /**
     * 文本外观资源类，提供不同字体大小的样式资源
     */
    public static class TextAppearanceResources {
        // 文本外观样式资源数组
        private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] {
            R.style.TextAppearanceNormal,
            R.style.TextAppearanceMedium,
            R.style.TextAppearanceLarge,
            R.style.TextAppearanceSuper
        };

        /**
         * 获取文本外观资源
         * @param id 资源索引
         * @return 样式资源ID
         * @note 修复了存储资源ID时可能越界的bug，越界时返回默认字体大小
         */
        public static int getTexAppearanceResource(int id) {
            if (id >= TEXTAPPEARANCE_RESOURCES.length) {
                return BG_DEFAULT_FONT_SIZE; // 越界保护，返回默认值
            }
            return TEXTAPPEARANCE_RESOURCES[id];
        }

        // 获取文本外观资源总数
        public static int getResourcesSize() {
            return TEXTAPPEARANCE_RESOURCES.length;
        }
    }
}