package com.fine.theme.icon;

import com.fine.theme.icon.img.ImageIconSource;
import com.fine.theme.icon.svg.SvgIconSource;
import com.formdev.flatlaf.json.Json;
import com.formdev.flatlaf.json.ParseException;
import com.fr.stable.StringUtils;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import java.util.Objects;


/**
 * json 格式图标集
 *
 * @author vito
 * @since 11.0
 * Created on 2023/11/17
 */
public class JsonIconSet extends AbstractIconSet {

    private String base;

    public JsonIconSet(UrlIconResource resource) {
        addIcon(new SvgIconSource("default", "com/fine/theme/icon/default.svg"));
        Map<String, Object> json;
        try (InputStream in = resource.getInputStream()) {
            try (Reader reader = new InputStreamReader(in, StandardCharsets.UTF_8)) {
                json = (Map<String, Object>) Json.parse(reader);
            }
        } catch (ParseException | IOException ex) {
            throw new RuntimeException(ex.getMessage(), ex);
        }


        name = (String) json.get("name");
        dark = Boolean.parseBoolean((String) json.get("dark"));
        base = (String) json.get("base");
        if (base == null) {
            base = StringUtils.EMPTY;
        }

        Map<String, Object> icons = (Map<String, Object>) json.get("icons");

        for (Map.Entry<String, Object> icon : icons.entrySet()) {
            applyIcon(icon.getKey(), icon.getValue());
        }

    }

    /**
     * 从配置文件中添加icon，只处理认识的格式和结构
     */
    private void applyIcon(String key, Object value) {
        if (value instanceof String) {
            String path = (String) value;
            if (IconManager.isSvgIcon(path)) {
                // 默认字符串提供正常图和灰化图
                addIcon(new SvgIconSource(key,
                        base + path,
                        IconManager.findDisablePath(base + path),
                        null
                ));
            } else if (IconManager.isImageIcon(path)) {
                addIcon(new ImageIconSource(key, base + path));
            }
            // 其他无法识别格式不处理
        } else if (value instanceof Map) {
            Map<String, Object> iconObj = (Map<String, Object>) value;
            String normalPath = (String) iconObj.get(IconType.normal.name());
            String disablePath = (String) iconObj.get(IconType.disable.name());
            String whitePath = (String) iconObj.get(IconType.white.name());
            // 暂不支持混合格式，每个id的格式需要保持一致
            if (IconManager.isSvgIcon(normalPath)) {
                addIcon(new SvgIconSource(key,
                        base + normalPath,
                        StringUtils.isNotBlank(disablePath) ? base + disablePath : null,
                        StringUtils.isNotBlank(whitePath) ? base + whitePath : null
                ));
            } else if (IconManager.isImageIcon(normalPath)) {
                addIcon(new ImageIconSource(key,
                        base + normalPath,
                        StringUtils.isNotBlank(disablePath) ? base + disablePath : null,
                        StringUtils.isNotBlank(whitePath) ? base + whitePath : null
                ));
            }
        }
    }


    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        JsonIconSet that = (JsonIconSet) o;
        return Objects.equals(name, that.name);
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(name);
    }

}