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package com.alibaba.fastjson2.writer;

import com.alibaba.fastjson2.JSONException;
import com.alibaba.fastjson2.JSONWriter;

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.List;

import static com.alibaba.fastjson2.JSONWriter.Feature.*;

final class FieldWriterListMethod
        extends FieldWriterList {
    FieldWriterListMethod(
            String fieldName,
            Type itemType,
            int ordinal,
            long features,
            String format,
            String label,
            Field field,
            Method method,
            Type fieldType,
            Class fieldClass
    ) {
        super(fieldName, itemType, ordinal, features, format, label, fieldType, fieldClass, field, method);
    }

    @Override
    public Object getFieldValue(Object object) {
        try {
            return method.invoke(object);
        } catch (IllegalArgumentException | IllegalAccessException | InvocationTargetException e) {
            throw new JSONException("invoke getter method error, " + fieldName, e);
        }
    }

    @Override
    public boolean write(JSONWriter jsonWriter, T object) {
        List value;
        try {
            value = (List) getFieldValue(object);
        } catch (JSONException error) {
            if (jsonWriter.isIgnoreErrorGetter()) {
                return false;
            }
            throw error;
        }

        long features = this.features | jsonWriter.getFeatures();
        if (value == null) {
            if ((features & (WriteNulls.mask | NullAsDefaultValue.mask | WriteNullListAsEmpty.mask)) != 0) {
                writeFieldName(jsonWriter);
                jsonWriter.writeArrayNull();
                return true;
            } else {
                return false;
            }
        }

        if ((features & NotWriteEmptyArray.mask) != 0 && value.isEmpty()) {
            return false;
        }

        String refPath = jsonWriter.setPath(this, value);
        if (refPath != null) {
            writeFieldName(jsonWriter);
            jsonWriter.writeReference(refPath);
            jsonWriter.popPath(value);
            return true;
        }

        if (itemType == String.class) {
            writeListStr(jsonWriter, true, value);
        } else {
            writeList(jsonWriter, value);
        }
        jsonWriter.popPath(value);
        return true;
    }

    @Override
    public void writeValue(JSONWriter jsonWriter, T object) {
        List value = (List) getFieldValue(object);

        if (value == null) {
            jsonWriter.writeNull();
            return;
        }

        writeListValue(jsonWriter, value);
    }
}