package cn.com.goldenwater.dcproj.utils.export;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Date;

/**
 * <p>
 *
 * </p>
 *
 * @author liyz
 * @date 2019/4/13 13:45
 **/
public class FieldFormatDispatch {

    private static final String SK = "sk";
    private static final String RY = "ry";
    private static final String SH = "sh";

    /**
     * 获取格式化后的值
     *
     * @param type  表格类型，是sk,ry,sh ?
     * @param name  字段名称，
     * @param value 原始字段值
     * @return 格式化的字段值
     */
    public static Object getFormatValue(String type, String name, Object value, boolean isImp) {
        if (type == null || name == null) {
            return null;
        }
        switch (type) {
            case SK:
                return getSkFormatValue(name, value, isImp);
            case RY:
                return getRyFormatValue(name, value);
            case SH:
                return getShFormatValue(name, value);
            default:
                return "";
        }
    }

    private static Object getSkFormatValue(String name, Object value, boolean isImp) {
        Object formatObj;
        if (isImp) {
            formatObj = new FieldFormatSkImp();
        } else {
            formatObj = new FieldFormatSkExp();
        }
        Method[] methods = formatObj.getClass().getMethods();
        for (Method method : methods) {
            if (("format" + name).toLowerCase().equals(method.getName().toLowerCase())) {
                try {
                    Class<?>[] parameterC = method.getParameterTypes();
                    if (parameterC[0] == Date.class) {
                        // checkNull 之后 日期有可能会变成 空字符 所以要判断一下
                        if (value instanceof Date) {
                            return method.invoke(formatObj, (Date) value);
                        } else {
                            return "";
                        }

                    } else {
                        // 找到对应的方法，并把原始值传进去，返回格式化后的值
                        return method.invoke(formatObj, value.toString());
                    }

                } catch (IllegalAccessException e) {
                    e.printStackTrace();
                } catch (InvocationTargetException e) {
                    e.printStackTrace();
                }
            }
        }
        return value;
    }

    private static Object getRyFormatValue(String name, Object value) {
        if (name == null) {
            return null;
        }
        return "";
    }

    private static Object getShFormatValue(String name, Object value) {
        if (name == null) {
            return null;
        }
        return "";
    }


}