package com.plannaplan.controllers;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import io.swagger.annotations.Api;

import com.plannaplan.App;
import com.plannaplan.responses.models.StatisticSimpleNumberResponse;
import com.plannaplan.services.GroupService;
import com.plannaplan.services.UserService;

/**
 * Rest controller to enpoint that help deveopler test the app
 */
@RestController
@CrossOrigin
@RequestMapping("/api/" + App.API_VERSION + "/statistics")
@Api(tags = {
        "StatisticsController" }, value = "StatisticsController", description = "Statistics are meant to be used by deanery only so in every endpoint you need to provide DEANERY token.")

public class StatisticsController {

    @Autowired
    private GroupService groupService;

    @Autowired
    private UserService userService;

    /**
     * @return if tour was set
     */
    @PreAuthorize("hasRole('ROLE_DEANERY')")
    @GetMapping(path = "/groups/created")
    public ResponseEntity<StatisticSimpleNumberResponse> getGroupsAmmounts() {
        final StatisticSimpleNumberResponse response = new StatisticSimpleNumberResponse(
                this.groupService.getGroupsAmmount());
        return new ResponseEntity<>(response, HttpStatus.OK);
    }

    /**
     * @return if tour was set
     */
    @PreAuthorize("hasRole('ROLE_DEANERY')")
    @GetMapping(path = "/groups/full")
    public ResponseEntity<StatisticSimpleNumberResponse> getGroupsFullAmmounts() {
        final StatisticSimpleNumberResponse response = new StatisticSimpleNumberResponse(
                this.groupService.getFullgroupsAmmount());
        return new ResponseEntity<>(response, HttpStatus.OK);
    }

    /**
     * @return amount of registered to some groups
     */
    @PreAuthorize("hasRole('ROLE_DEANERY')")
    @GetMapping(path = "/users/registered")
    public ResponseEntity<StatisticSimpleNumberResponse> getCommisionsAmmounts() {
        final StatisticSimpleNumberResponse response = new StatisticSimpleNumberResponse(
                this.userService.getAmmountOfUsersWithAssignedGroups());
        return new ResponseEntity<>(response, HttpStatus.OK);
    }

    /**
     * @return amount of students not registered to any groups
     */
    @PreAuthorize("hasRole('ROLE_DEANERY')")
    @GetMapping(path = "/users/noregistered")
    public ResponseEntity<StatisticSimpleNumberResponse> getNonCommisionsAmmounts() {
        final StatisticSimpleNumberResponse response = new StatisticSimpleNumberResponse(
                this.userService.getAmmountOfUsersWithNoAssignedGroups());
        return new ResponseEntity<>(response, HttpStatus.OK);
    }

    /**
     * @return amount of students that have fully accepted schedules
     */
    @PreAuthorize("hasRole('ROLE_DEANERY')")
    @GetMapping(path = "/users/accepted")
    public ResponseEntity<StatisticSimpleNumberResponse> getAcceptedAmmounts() {
        final StatisticSimpleNumberResponse response = new StatisticSimpleNumberResponse(
                this.userService.getAmmountOfUsersWithAcceptedSchedules());
        return new ResponseEntity<>(response, HttpStatus.OK);
    }

    /**
     * @return amount of students that have purtly accepted schedules
     */
    @PreAuthorize("hasRole('ROLE_DEANERY')")
    @GetMapping(path = "/users/accepted/partly")
    public ResponseEntity<StatisticSimpleNumberResponse> getAcceptedPartlyAmmounts() {
        final StatisticSimpleNumberResponse response = new StatisticSimpleNumberResponse(
                this.userService.getAmmountOfUsersWithNoAcceptedSchedules());
        return new ResponseEntity<>(response, HttpStatus.OK);
    }

}