package com.mattrixwv.raidbuilder.util.validation;


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

import org.springframework.stereotype.Component;

import com.mattrixwv.raidbuilder.entity.GameClass;
import com.mattrixwv.raidbuilder.entity.Person;
import com.mattrixwv.raidbuilder.entity.PersonCharacter;
import com.mattrixwv.raidbuilder.service.GameClassService;
import com.mattrixwv.raidbuilder.service.PersonCharacterService;
import com.mattrixwv.raidbuilder.service.PersonService;

import lombok.RequiredArgsConstructor;


@Component
@RequiredArgsConstructor
public class PersonCharacterValidationUtil{
	private final GameClassService gameClassService;
	private final PersonService person;
	private final PersonCharacterService personCharacterService;


	public List<String> validateNewPersonCharacter(PersonCharacter personCharacter, UUID raidGroupId){
		ArrayList<String> errors = new ArrayList<>();

		//Person Character ID
		if(personCharacter.getPersonCharacterId() != null){
			errors.add("Person character ID must be null");
		}

		//Person ID
		if(personCharacter.getPersonId() == null){
			errors.add("Person ID is required");
		}
		else{
			Person existingPerson = person.getPerson(personCharacter.getPersonId(), raidGroupId);
			if(existingPerson == null){
				errors.add("Person ID is invalid");
			}
		}

		//Game Class ID
		if(personCharacter.getGameClassId() == null){
			errors.add("Game class ID is required");
		}
		else{
			GameClass existingGameClass = gameClassService.getById(personCharacter.getGameClassId());
			if(existingGameClass == null){
				errors.add("Game class ID is invalid");
			}
		}

		//Character Name
		if((personCharacter.getCharacterName() == null) || (personCharacter.getCharacterName().trim().isEmpty())){
			errors.add("Character name is required");
		}
		else{
			PersonCharacter existingPersonCharacter = personCharacterService.getByPersonIdAndCharacterName(personCharacter.getPersonId(), personCharacter.getCharacterName());
			if(existingPersonCharacter != null){
				errors.add("Character name already exists for this person");
			}
		}

		//Rating
		if((personCharacter.getCharacterRating() < 0) || personCharacter.getCharacterRating() > 10){
			errors.add("Character rating must be between 0 and 10");
		}


		return errors;
	}

	public List<String> validateExistingPersonCharacter(PersonCharacter personCharacter, UUID raidGroupId){
		ArrayList<String> errors = new ArrayList<>();

		//Person Character ID
		if(personCharacter.getPersonCharacterId() == null){
			errors.add("Person character ID is required");
			return errors;
		}
		PersonCharacter existingPersonCharacter = personCharacterService.getById(personCharacter.getPersonCharacterId());
		if(existingPersonCharacter == null){
			errors.add("Person character ID is invalid");
		}

		//Person ID
		if(personCharacter.getPersonId() == null){
			errors.add("Person ID is required");
		}
		else{
			Person existingPerson = person.getPerson(personCharacter.getPersonId(), raidGroupId);
			if(existingPerson == null){
				errors.add("Person ID is invalid");
			}
		}

		//Game Class ID
		if(personCharacter.getGameClassId() == null){
			errors.add("Game class ID is required");
		}
		else{
			GameClass existingGameClass = gameClassService.getById(personCharacter.getGameClassId());
			if(existingGameClass == null){
				errors.add("Game class ID is invalid");
			}
		}

		//Character Name
		if((personCharacter.getCharacterName() == null) || (personCharacter.getCharacterName().trim().isEmpty())){
			errors.add("Character name is required");
		}
		else{
			existingPersonCharacter = personCharacterService.getByPersonIdAndCharacterName(personCharacter.getPersonId(), personCharacter.getCharacterName());
			if(existingPersonCharacter != null){
				errors.add("Character name already exists for this person");
			}
		}

		//Rating
		if((personCharacter.getCharacterRating() < 0) || personCharacter.getCharacterRating() > 10){
			errors.add("Character rating must be between 0 and 10");
		}


		return errors;
	}
}