package foundation.icall.callout;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.nio.charset.Charset;
import java.util.Set;

import foundation.dao.bizlogic.DocDescription;
import foundation.dao.bizlogic.IRequest;
import foundation.util.ContentBuilder;
import foundation.util.MapList;
import okhttp3.FormBody;
import okhttp3.MediaType;
import okhttp3.Request.Builder;
import okhttp3.RequestBody;

public class ICallRequest implements IRequest {

	private String url;
	private MapList<String, String> params;
	private MapList<String, String> headers;
	private MapList<String, String> formBody;
	private JSONResponse jsonBody;
	private DocDescription docDescription;
	
	public ICallRequest(String url) {
		this.url = url;
		params = new MapList<String, String>(false);
		headers = new MapList<String, String>(false);
		formBody = new MapList<String, String>(false);
	}

	public String paramsToURL() throws UnsupportedEncodingException {
		if (params.isEmpty()) {
			return "";
		}
		
		ContentBuilder builder = new ContentBuilder("&");
		Set<String> keySet = params.getKeySet();
		
		for (String key: keySet) {
			String name = URLEncoder.encode(key, "utf-8");
			
			String value = params.get(key);
			if (value == null) {
				continue;
			}
			
			value = URLEncoder.encode(value, "utf-8");
			builder.append(name, value);
		}
		
		return builder.toString();
	}
	
	public void applyHeaders(Builder builder) {
		Set<String> keySet = headers.getKeySet();
		
		for (String key: keySet) {
			String value = headers.get(key);
			
			if (value == null) {
				continue;
			}
			
			builder.addHeader(key, value);
		}
	}

	public void applyJSONBody(Builder builder) {
		MediaType contentType = MediaType.parse("application/json;charset=utf-8");
		RequestBody body = RequestBody.create(contentType, jsonBody.toString());
		builder.post(body);
	}

	public void applyFormBody(Builder builder) throws UnsupportedEncodingException {
		Charset charset = Charset.forName("UTF-8");
		FormBody.Builder formBuilder = new FormBody.Builder(charset);
		
		Set<String> keySet = formBody.getKeySet();
		
		for (String key: keySet) {
			String value = formBody.get(key);
			formBuilder.add(key, value);
		}
		
		FormBody result = formBuilder.build();
		builder.post(result);
	}
	
	public void addHeader(String name, String value) {
		headers.add(name, value);
	}
	
	public void addFormData(String name, String value) {
		formBody.add(name, value);
	}
	
	@Override
	public String getURL() {
		return url;
	}

	public void setURL(String url) {
		this.url = url;
	}

	@Override
	public DocDescription getDocDescription() {
		return docDescription;
	}

	@Override
	public void setDocDescription(DocDescription docDesciption) {
		this.docDescription = docDesciption;
	}

	public boolean existsHeaders() {
		return !headers.isEmpty();
	}

	public boolean existsJSONBody() {
		return jsonBody != null;
	}

	public boolean existsFormBody() {
		return formBody != null;
	}

	public void addOneParam(String key, String value) {
		params.add(key, value);
	}
	
	@Override
	public String getRequestHeader() {
		return headers.mapToString(",");
	}
	
	@Override
	public String getRequestBody() {
		return formBody.mapToString(",");
	}

	@Override
	public String getBody() {
		ContentBuilder json = new ContentBuilder(",");
		json.append("\"url\":\"" + url + "\"");
		
		json.append("\"params\":" + params.mapToString(","));
		json.append("\"headers\":" + headers.mapToString(","));
		json.append("\"formBody\":" + formBody.mapToString(","));
		
		return json.toString();
	}
}