/*
 * Gitea API
 * This documentation describes the Gitea API.
 *
 * OpenAPI spec version: {{AppVer | JSEscape}}
 *
 *
 * NOTE: This class is auto generated by the swagger code generator program.
 * https://github.com/swagger-api/swagger-codegen.git
 * Do not edit the class manually.
 */

package org.gitnex.tea4j.v2;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.TypeAdapter;
import com.google.gson.internal.bind.util.ISO8601Utils;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonWriter;
import io.gsonfire.GsonFireBuilder;
import java.io.IOException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.ParsePosition;
import java.util.Date;
import java.util.Map;
import org.gitnex.tea4j.v2.models.*;

public class JSON {
  private Gson gson;
  private DateTypeAdapter dateTypeAdapter = new DateTypeAdapter();
  private SqlDateTypeAdapter sqlDateTypeAdapter = new SqlDateTypeAdapter();

  public static GsonBuilder createGson() {
    GsonFireBuilder fireBuilder = new GsonFireBuilder();
    return fireBuilder.createGsonBuilder();
  }

  private static String getDiscriminatorValue(JsonElement readElement, String discriminatorField) {
    JsonElement element = readElement.getAsJsonObject().get(discriminatorField);
    if (null == element) {
      throw new IllegalArgumentException(
          "missing discriminator field: <" + discriminatorField + ">");
    }
    return element.getAsString();
  }

  private static Class getClassByDiscriminator(
      Map classByDiscriminatorValue, String discriminatorValue) {
    Class clazz = (Class) classByDiscriminatorValue.get(discriminatorValue.toUpperCase());
    if (null == clazz) {
      throw new IllegalArgumentException(
          "cannot determine model class of name: <" + discriminatorValue + ">");
    }
    return clazz;
  }

  public JSON() {
    gson =
        createGson()
            .registerTypeAdapter(Date.class, dateTypeAdapter)
            .registerTypeAdapter(java.sql.Date.class, sqlDateTypeAdapter)
            .create();
  }

  /**
   * Get Gson.
   *
   * @return Gson
   */
  public Gson getGson() {
    return gson;
  }

  /**
   * Set Gson.
   *
   * @param gson Gson
   * @return JSON
   */
  public JSON setGson(Gson gson) {
    this.gson = gson;
    return this;
  }

  /**
   * Gson TypeAdapter for java.sql.Date type If the dateFormat is null, a simple "yyyy-MM-dd" format
   * will be used (more efficient than SimpleDateFormat).
   */
  public static class SqlDateTypeAdapter extends TypeAdapter<java.sql.Date> {

    private DateFormat dateFormat;

    public SqlDateTypeAdapter() {}

    public SqlDateTypeAdapter(DateFormat dateFormat) {
      this.dateFormat = dateFormat;
    }

    public void setFormat(DateFormat dateFormat) {
      this.dateFormat = dateFormat;
    }

    @Override
    public void write(JsonWriter out, java.sql.Date date) throws IOException {
      if (date == null) {
        out.nullValue();
      } else {
        String value;
        if (dateFormat != null) {
          value = dateFormat.format(date);
        } else {
          value = date.toString();
        }
        out.value(value);
      }
    }

    @Override
    public java.sql.Date read(JsonReader in) throws IOException {
      switch (in.peek()) {
        case NULL:
          in.nextNull();
          return null;
        default:
          String date = in.nextString();
          try {
            if (dateFormat != null) {
              return new java.sql.Date(dateFormat.parse(date).getTime());
            }
            return new java.sql.Date(ISO8601Utils.parse(date, new ParsePosition(0)).getTime());
          } catch (ParseException e) {
            throw new JsonParseException(e);
          }
      }
    }
  }

  /**
   * Gson TypeAdapter for java.util.Date type If the dateFormat is null, ISO8601Utils will be used.
   */
  public static class DateTypeAdapter extends TypeAdapter<Date> {

    private DateFormat dateFormat;

    public DateTypeAdapter() {}

    public DateTypeAdapter(DateFormat dateFormat) {
      this.dateFormat = dateFormat;
    }

    public void setFormat(DateFormat dateFormat) {
      this.dateFormat = dateFormat;
    }

    @Override
    public void write(JsonWriter out, Date date) throws IOException {
      if (date == null) {
        out.nullValue();
      } else {
        String value;
        if (dateFormat != null) {
          value = dateFormat.format(date);
        } else {
          value = ISO8601Utils.format(date, true);
        }
        out.value(value);
      }
    }

    @Override
    public Date read(JsonReader in) throws IOException {
      try {
        switch (in.peek()) {
          case NULL:
            in.nextNull();
            return null;
          default:
            String date = in.nextString();
            try {
              if (dateFormat != null) {
                return dateFormat.parse(date);
              }
              return ISO8601Utils.parse(date, new ParsePosition(0));
            } catch (ParseException e) {
              throw new JsonParseException(e);
            }
        }
      } catch (IllegalArgumentException e) {
        throw new JsonParseException(e);
      }
    }
  }

  public JSON setDateFormat(DateFormat dateFormat) {
    dateTypeAdapter.setFormat(dateFormat);
    return this;
  }

  public JSON setSqlDateFormat(DateFormat dateFormat) {
    sqlDateTypeAdapter.setFormat(dateFormat);
    return this;
  }
}