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package me.imsonmia.epqapi.controller;
import java.time.Instant;
import java.util.ArrayList;
import java.util.Optional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PatchMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import me.imsonmia.epqapi.model.Message;
import me.imsonmia.epqapi.model.User;
import me.imsonmia.epqapi.repository.MessageRepository;
import me.imsonmia.epqapi.repository.UserRepository;
@RestController
@RequestMapping("/api/v1")
public class UserController {
@Autowired
private UserRepository userRepository;
@Autowired
private MessageRepository messageRepository;
// request URL like .../user?id={number} or .../user?name={string}
@GetMapping("/user")
public ResponseEntity<User> getUserByParam(@RequestParam(value = "id") Optional<Long> id,
@RequestParam(value = "name") Optional<String> name) {
if (!id.isPresent()) {
if (!name.isPresent()) {
// malformed request
return ResponseEntity.badRequest().build();
} else {
boolean exists = userRepository.existsByUserName(name.get());
// Filter by name branch
if (!exists) {
return ResponseEntity.notFound().build();
} else {
return ResponseEntity.ok().body(userRepository.findByUserName(name.get()).get());
}
}
} else {
// get by id branch
return ResponseEntity.ok().body(userRepository.findById(id.get()).get());
}
}
@PostMapping("/user")
public ResponseEntity<Optional<User>> addUser(
@RequestBody User newUser) {
if (userRepository.existsByUserName(newUser.getUserName())) {
return ResponseEntity.badRequest().build();
}
userRepository.save(newUser);
return ResponseEntity.ok().build();
}
@DeleteMapping("/user/{id}")
public boolean deleteUser(
@PathVariable(value = "id") Long id) {
// user doesn't exist
if (!userRepository.existsById(id)) {
return false;
}
userRepository.deleteById(id);
return true;
}
@GetMapping("/msg/{from}")
public ArrayList<Message> getMessagesFromTimestamp(@PathVariable(value = "from") Long fromTimestamp) {
if (fromTimestamp < 0) {
return new ArrayList<>();
}
;
ArrayList<Message> messages = new ArrayList<>();
Instant targetInstant = Instant.ofEpochMilli(fromTimestamp);
for (Message msg : messageRepository.findAll()) {
Instant t = Instant.ofEpochMilli(msg.getTimeMillis());
if (t.isBefore(targetInstant)) {
continue;
}
messages.add(msg);
}
return messages;
}
}
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