package com.estate.expert.admin.stat.report.builder;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.deepoove.poi.XWPFTemplate;
import com.deepoove.poi.config.Configure;
import com.deepoove.poi.config.ConfigureBuilder;
import com.deepoove.poi.data.ChartMultiSeriesRenderData;
import com.deepoove.poi.data.ChartSingleSeriesRenderData;
import com.deepoove.poi.data.Charts;
import com.deepoove.poi.plugin.table.LoopRowTableRenderPolicy;
import com.estate.expert.admin.service.UserFileService;
import com.estate.expert.admin.stat.report.render.AbstractInfoTablePolicy;
import com.estate.expert.admin.stat.report.render.CheckInfoTablePolicy;
import com.estate.expert.admin.stat.report.render.CustomPictureRenderPolicy;
import com.estate.expert.admin.stat.report.render.DeviceGroupTablePolicy;
import org.springframework.core.io.ClassPathResource;
import org.springframework.util.CollectionUtils;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * 第三方评估报告构建器
 */
public class SystemReportBuilder implements ReportBuilderBase {

    private static final String DEFAULT_TEMPLATE_FILE = "第三方评估报告.docx";

    protected UserFileService userFileService;

    private final String templateFile;

    public SystemReportBuilder(UserFileService userFileService) {
        this(userFileService, DEFAULT_TEMPLATE_FILE);
    }

    public SystemReportBuilder(UserFileService userFileService, String templateFile) {
        this.userFileService = userFileService;
        this.templateFile = templateFile;
    }

    /**
     * 构建第三方评估报告
     * @param data 数据
     * @param templateConfig 模板配置
     * @return 第三方评估报告
     */
    @Override
    public XWPFTemplate buildReport(JSONObject data, Map<String, Integer> templateConfig) {
        var res = new ClassPathResource("templates/" + templateFile);

        var viewConfig = templateConfig != null ? toViewConfig(templateConfig) : null;
        var builder = initConfig(viewConfig);
        var model = initModel(data);

        if(viewConfig != null)
            model.put("config", viewConfig);

        try {
            return XWPFTemplate.compile(res.getInputStream(), builder.build()).render(model);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 转换视图配置
     * @param templateConfig 模板配置
     * @return 视图配置
     */
    private Map<String, Boolean> toViewConfig(Map<String, Integer> templateConfig){
        var map = new HashMap<String, Boolean>();
        for (var entry : templateConfig.entrySet()) {
            var value = entry.getValue();
            for(int i = 0; i < 2; i++){
                map.put(entry.getKey() + i, value == i);
            }
        }
        return map;
    }

    /**
     * 初始化配置
     * @param viewConfig 视图配置
     * @return 配置构建器
     */
    private ConfigureBuilder initConfig(Map<String, Boolean> viewConfig){
        ConfigureBuilder builder = Configure.builder();
        builder.bind("data.设备分组信息", new DeviceGroupTablePolicy());
        builder.bind("data.评估结果.隐患等级分布.分项", new LoopRowTableRenderPolicy());
        builder.bind("分项评估",  new CheckInfoTablePolicy());

        var abstractStyle = viewConfig != null && viewConfig.get("检查综合评价情况样式0");
        builder.bind("data.评估结果.综合信息", new AbstractInfoTablePolicy(abstractStyle ? 0 : 1));
        builder.addPlugin('%', new CustomPictureRenderPolicy(userFileService));
        return builder;
    }

    /**
     * 初始化模型
     * @param data 数据
     * @return 模型
     */
    private Map<String, Object> initModel(JSONObject data){
        var dataMap = new HashMap<String, Object>();
        dataMap.put("data", data);
        dataMap.put("隐患等级分布饼图", buildErrorLevelPieChart(data));
        dataMap.put("隐患等级分布直方图", buildErrorLevelBarChart(data));

        initChart(data, dataMap);
        return dataMap;
    }

    /**
     * 初始化图表
     * @param data 数据
     * @param dataMap 数据映射
     */
    private void initChart(JSONObject data, Map<String, Object> dataMap){
        var evalResult = data.getJSONObject("评估结果");
        var checkCategories = evalResult.getJSONArray("检查项");
        if(checkCategories == null) return;
        var safetyCategories = new JSONArray();
        for (var c : checkCategories){
            var co = (JSONObject)c;
            var name = co.getString("名称");
            if(name != null && name.contains("安全"))
                safetyCategories.add(co);
            var pieChart = buildPieChart(co);
            if(pieChart!=null)
                co.put("问题分布饼图", pieChart);
            var barChart = buildBarChart(co);
            if(barChart!=null)
                co.put("问题分布直方图", barChart);
        }
        if(safetyCategories.isEmpty() && !checkCategories.isEmpty())
            safetyCategories.add(checkCategories.get(0));
        evalResult.put("安全检查项", safetyCategories);
    }

    /**
     * 构建饼图
     * @param c 数据
     * @return 饼图
     */
    private ChartSingleSeriesRenderData buildPieChart(JSONObject c) {
        var name = c.getString("名称");
        var title = name + "问题分布饼图";

        var checkInfos = getCheckInfos(c);
        if(CollectionUtils.isEmpty(checkInfos))
            return null;
        String [] categories = checkInfos.stream().map( item -> {
            var obj = (JSONObject)item;
            return obj.getString("类别") + " " + obj.getString("问题百分比");
        }).toArray(String[]::new);

        Integer[] values = checkInfos.stream().map( item -> {
            var obj = (JSONObject)item;
            return obj.getInteger("问题数量");
        }).toArray(Integer[]::new);

        return Charts.ofSingleSeries(title, categories)
                .series("数量", values)
                .create();
    }

    /**
     * 构建柱状图
     * @param c 数据
     * @return 柱状图
     */
    private ChartMultiSeriesRenderData buildBarChart(JSONObject c) {
        var name = c.getString("名称");
        var title = name + "问题分布直方图";

        var checkInfos = getCheckInfos(c);
        String [] categories = checkInfos.stream().map( item -> {
            var obj = (JSONObject)item;
            return obj.getString("类别");
        }).toArray(String[]::new);

        Integer[] values = checkInfos.stream().map( item -> {
            var obj = (JSONObject)item;
            return obj.getInteger("问题数量");
        }).toArray(Integer[]::new);

        return Charts.ofBar(title, categories)
                .addSeries("数量", values)
                .create();
    }

    /**
     * 获取检查信息
     * @param evalRes 评估结果
     * @return 检查信息
     */
    private JSONArray getCheckInfos(JSONObject evalRes){
        var result = new JSONArray();
        var categoryItems = evalRes.getJSONArray("分项评估");
        categoryItems.forEach( categoryItem -> {
            ((JSONObject)categoryItem).getJSONArray("分项").forEach( item -> {
                result.add(item);
            });
        });

        return result;
    }

    // 隐患等级分布饼图
    /**
     * 构建隐患等级分布饼图
     * @param data 数据
     * @return 隐患等级分布饼图
     */
    private ChartSingleSeriesRenderData buildErrorLevelPieChart(JSONObject data){
        var title = "隐患等级分布饼图";
        var checkInfos = data.getJSONObject("评估结果")
                .getJSONObject("隐患等级分布").getJSONArray("分项");
        if(checkInfos == null)
            return null;
        String [] categories = checkInfos.stream().map( item -> {
            var obj = (JSONObject)item;
            return obj.getString("隐患等级") + " " + obj.getString("比例");
        }).toArray(String[]::new);

        Integer[] values = checkInfos.stream().map( item -> {
            var obj = (JSONObject)item;
            return obj.getInteger("数量");
        }).toArray(Integer[]::new);

        return Charts.ofSingleSeries(title, categories)
                .series("数量", values)
                .create();
    }

    /**
     * 构建隐患等级分布直方图
     * @param data 数据
     * @return 隐患等级分布直方图
     */
    private ChartMultiSeriesRenderData buildErrorLevelBarChart(JSONObject data){
        var title = "隐患等级分布直方图";
        var checkInfos = data.getJSONObject("评估结果").getJSONObject("隐患等级分布").getJSONArray("分项");
        if(checkInfos == null)
            return null;
        String [] categories = checkInfos.stream().map( item -> {
            var obj = (JSONObject)item;
            return obj.getString("隐患等级") + " " + obj.getString("比例");
        }).toArray(String[]::new);

        Integer[] values = checkInfos.stream().map( item -> {
            var obj = (JSONObject)item;
            return obj.getInteger("数量");
        }).toArray(Integer[]::new);

        return Charts.ofBar(title, categories)
                .addSeries("数量", values)
                .create();
    }
}