package eu.dnetlib.uoaadmintools.controllers;

import eu.dnetlib.uoaadmintools.entities.Question;
import eu.dnetlib.uoaadmintools.entities.QuestionResponse;
import eu.dnetlib.uoaadmintools.dao.QuestionDAO;
import eu.dnetlib.uoaadmintools.entities.Topic;
import eu.dnetlib.uoaadmintools.dao.TopicDAO;

import org.apache.log4j.Logger;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
import java.util.ArrayList;

import javax.validation.Valid;

@RestController
@CrossOrigin(origins = "*")
public class QuestionController {
    private final Logger log = Logger.getLogger(this.getClass());

    @Autowired
    private QuestionDAO questionDAO;

    @Autowired
    private TopicDAO topicDAO;

    @RequestMapping(value = "/question", method = RequestMethod.GET)
    public List<QuestionResponse> getAllQuestions() {
        List<Question> questions = questionDAO.findAll();
        List<QuestionResponse> questionResponses = new ArrayList<>();
        for (Question question : questions) {
            QuestionResponse questionResponse = new QuestionResponse(question);
            List<Topic> topics = new ArrayList<>();
            for (String topic : question.getTopics()) {
                topics.add(topicDAO.findById(topic));
            }
            questionResponse.setTopics(topics);
            questionResponses.add(questionResponse);
        }
        return questionResponses;
    }

    @RequestMapping(value = "/question", method = RequestMethod.DELETE)
    public void deleteAllQuestions() {
        questionDAO.deleteAll();
    }

    @RequestMapping(value = "/question", method = RequestMethod.POST)
    public QuestionResponse insertOrUpdateQuestion(@RequestBody Question question) {
        QuestionResponse questionResponse = new QuestionResponse(questionDAO.save(question));
        List<Topic> topics = new ArrayList<>();
        for (String topic : question.getTopics()) {
            topics.add(topicDAO.findById(topic));
        }
        questionResponse.setTopics(topics);
        return questionResponse;
    }

    @RequestMapping(value = "/question/{id}", method = RequestMethod.GET)
    public QuestionResponse getQuestion(@PathVariable(value = "id") String id) {
        Question question = questionDAO.findById(id);
        QuestionResponse questionResponse = new QuestionResponse(question);
        List<Topic> topics = new ArrayList<>();
        for (String topic : question.getTopics()) {
            topics.add(topicDAO.findById(topic));
        }
        questionResponse.setTopics(topics);
        return questionResponse;
    }

    @RequestMapping(value = "/question/{id}", method = RequestMethod.DELETE)
    public void deleteQuestion(@PathVariable(value = "id") String id) {
        questionDAO.delete(id);
    }

    @RequestMapping(value = "/question/inc/{id}", method = RequestMethod.PUT)
    public Question incQuestion(@PathVariable(value = "id") String id) {
        Question question = questionDAO.findById(id);
        question.increment();
        questionDAO.save(question);
        return question;
    }

    @RequestMapping(value = "/question/delete", method = RequestMethod.POST)
    public void deleteQuestions(@RequestBody List<String> questions) {
        for (String question : questions) {
            deleteQuestion(question);
        }
    }

    @RequestMapping(value = "/question/toggle", method = RequestMethod.POST)
    public void toggleQuestions(@RequestBody List<String> questions, @RequestParam String status) throws Exception {
        for (String id: questions) {
            Question question = questionDAO.findById(id);
            question.setIsActive(Boolean.parseBoolean(status));
            questionDAO.save(question);
        }
    }
}