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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2013-2014 sagyf Yang. The Four Group.
 */

package goja.rapid.mvc.csv;

import com.jfinal.render.Render;
import com.jfinal.render.RenderException;

import java.io.PrintWriter;
import java.net.URLEncoder;
import java.util.List;

@SuppressWarnings("serial")
public class CsvRender extends Render {
    private List clomuns;
    private List      data;
    private String encodeType = "gbk";
    private String fileName   = "default.csv";
    private List headers;

    public CsvRender(List headers, List data) {
        this.headers = headers;
        this.data = data;
    }

    public static CsvRender me(List headers, List data) {
        return new CsvRender(headers, data);
    }

    @Override
    public void render() {
        response.reset();
        PrintWriter out = null;
        try {
            response.setContentType("application/vnd.ms-excel;charset=" + encodeType);
            response.setHeader("Content-Disposition",
                    "attachment;  filename=" + URLEncoder.encode(fileName, encodeType));
            out = response.getWriter();
            out.write(CsvUtil.createCSV(headers, data, clomuns));
        } catch (Exception e) {
            throw new RenderException(e);
        } finally {
            if (null != out) {
                out.flush();
                out.close();
            }
        }
    }

    public CsvRender clomuns(List clomuns) {
        this.clomuns = clomuns;
        return this;
    }

    public CsvRender data(List data) {
        this.data = data;
        return this;
    }

    public CsvRender encodeType(String encodeType) {
        this.encodeType = encodeType;
        return this;
    }

    public CsvRender fileName(String fileName) {
        this.fileName = fileName;
        return this;
    }

    public CsvRender headers(List headers) {
        this.headers = headers;
        return this;
    }
}