package domain

import (
	"fmt"
	"time"

	"github.com/go-playground/validator/v10"
	"github.com/google/uuid"
)

type CompetitionState string

const (
	CompetitionStateUnspecified CompetitionState = "UNSPECIFIED"
	CompetitionStateDraft       CompetitionState = "DRAFT"
	CompetitionStateNotStarted  CompetitionState = "NOT_STARTED"
	CompetitionStateStarted     CompetitionState = "STARTED"
	CompetitionStateFinished    CompetitionState = "FINISHED"
	CompetitionStateArchived    CompetitionState = "ARCHIVED"
)

type ParticipationType string

const (
	ParticipationTypeUnspecified ParticipationType = "UNSPECIFIED"
	ParticipationTypeIndividual  ParticipationType = "INDIVIDUAL"
	ParticipationTypeTeam        ParticipationType = "TEAM"
)

type CompetitionType string

const (
	CompetitionTypeUnspecified CompetitionType = "UNSPECIFIED"
	CompetitionTypeEducative   CompetitionType = "EDUCATIVE"
	CompetitionTypeCompetitive CompetitionType = "COMPETITIVE"
)

type Competition struct {
	ID                uuid.UUID
	State             CompetitionState
	Title             string
	Description       string
	ImageURL          *string
	StartTime         time.Time
	EndTime           time.Time
	Type              CompetitionType
	ParticipationType ParticipationType
	CreatedAt         time.Time
	UpdatedAt         time.Time
}


func NewCompetition(id uuid.UUID, state CompetitionState, title string, description string, imageURL *string, startTime time.Time, endTime time.Time, tpe CompetitionType, participationType ParticipationType, createdAt time.Time, updatedAt time.Time) *Competition {
	return &Competition{
		ID:                id,
		State:             state,
		Title:             title,
		Description:       description,
		ImageURL:          imageURL,
		StartTime:         startTime,
		EndTime:           endTime,
		Type:              tpe,
		ParticipationType: participationType,
		CreatedAt:         createdAt,
		UpdatedAt:         updatedAt,
	}
}

func (c *Competition) Validate() error {
	validate := validator.New()

	return fmt.Errorf("%w: %w", ErrInvalidCompetitionData, validate.Struct(c))
}