package com.yaoyicloud.render;

import java.io.IOException;
import java.nio.file.Paths;
import java.util.UUID;

import com.deepoove.poi.config.Configure;
import com.deepoove.poi.config.ConfigureBuilder;
import com.deepoove.poi.plugin.table.LoopRowTableRenderPolicy;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;
import com.yaoyicloud.message.FxyProtos.AuditResult;
import com.yaoyicloud.message.FxyProtos.CheckItemScore;

import cn.hutool.core.util.StrUtil;

/**
 * AuditResult渲染器
 *
 */
public final class AuditResultRender extends AbstractRender {

    public AuditResultRender(String cwd) {
        super(cwd);
    }

    /**
     * Docx 渲染
     *
     * @param info 数据
     * @param templateFileContent 模板内容
     * @return 本地文件目录
     * @throws IOException
     */
    public String renderDocx(AuditResult info, byte[] templateFileContent) throws IOException {
        ObjectMapper mapper = new ObjectMapper();
        SimpleModule module = new SimpleModule();
        module.addSerializer(new AuditResultSerializer(AuditResult.class));
        module.addSerializer(new CheckItemScoreSerializer(CheckItemScore.class));
        mapper.registerModule(module);

        String jsonStr = mapper.writeValueAsString(info);

        // 注： 报告模板的模板变量按照json序列化的结果命名
        // 注： 目前的实现假设：一个session对应一个cwd目录
        ConfigureBuilder builder = Configure.builder();
        builder.bind("checkItemScores", new LoopRowTableRenderPolicy());
        this.docxResultPath = this.renderDocx(jsonStr, templateFileContent, builder,
            Paths.get(cwd, UUID.randomUUID().toString() + ".docx").toString());
        return this.docxResultPath;
    }

    /*
     * 通过序列化和反序列化
     * 1. 默认显示规则的数据转换
     * 2. 避免TL处理模板面对复杂数据类型
     */
    public class AuditResultSerializer extends StdSerializer<AuditResult> {

        public AuditResultSerializer() {
            this(null);
        }

        public AuditResultSerializer(Class<AuditResult> t) {
            super(t);
        }

        @Override
        public void serialize(AuditResult value, JsonGenerator jgen, SerializerProvider provider)
            throws IOException, JsonProcessingException {

            jgen.writeStartObject();
            jgen.writeStringField("auditResultScore", value.getAuditResultScore());
            jgen.writeStringField("opinion", StrUtil.isBlank(value.getOpinion()) ? "-" : value.getOpinion());
            jgen.writeStringField("serviceProviderName", value.getServiceProviderName());
            // Note: ignore reportVersion
            jgen.writeStringField("auditDate", value.getAuditDate());
            jgen.writeStringField("riskAlert", StrUtil.isBlank(value.getRiskAlert()) ? "-" : value.getRiskAlert());
            jgen.writeStringField("auditResultSuggestion",
                StrUtil.isBlank(value.getAuditResultSuggestion()) ? "-" : value.getAuditResultSuggestion());
            jgen.writeObjectField("checkItemScores", value.getCheckItemScoresList());
            jgen.writeEndObject();
        }
    }

    public class CheckItemScoreSerializer extends StdSerializer<CheckItemScore> {

        public CheckItemScoreSerializer() {
            this(null);
        }

        public CheckItemScoreSerializer(Class<CheckItemScore> t) {
            super(t);
        }

        @Override
        public void serialize(CheckItemScore value, JsonGenerator jgen, SerializerProvider provider)
            throws IOException, JsonProcessingException {

            jgen.writeStartObject();
            jgen.writeNumberField("itemId", value.getItemId());
            jgen.writeStringField("category", StrUtil.isBlank(value.getCategory()) ? "-" : value.getCategory());
            jgen.writeStringField("itemName", value.getItemName());
            jgen.writeNumberField("score", value.getScore());
            jgen.writeEndObject();
        }
    }
}