package database

import (
	"context"
	"errors"
	otterError "git.anthrove.art/Anthrove/otter-space-sdk/v2/pkg/error"
	"git.anthrove.art/Anthrove/otter-space-sdk/v2/pkg/models"
	"gorm.io/gorm"
)

func CreateUser(ctx context.Context, id models.UserID) (models.User, error) {
	if client == nil {
		return models.User{}, &otterError.Database{Reason: otterError.DatabaseIsNotConnected}
	}

	user := models.User{
		BaseModel: models.BaseModel[models.UserID]{
			ID: id,
		},
	}

	result := client.WithContext(ctx).Create(&user)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrDuplicatedKey) {
			return models.User{}, &otterError.Database{Reason: otterError.DuplicateKey}
		}
		return models.User{}, result.Error
	}

	return user, nil
}

func GetUserByID(ctx context.Context, id models.UserID) (models.User, error) {
	var user models.User

	if client == nil {
		return models.User{}, &otterError.Database{Reason: otterError.DatabaseIsNotConnected}
	}

	if len(id) == 0 {
		return models.User{}, &otterError.EntityValidationFailed{Reason: otterError.UserIDIsEmpty}
	}

	if len(id) != 25 {
		return models.User{}, &otterError.EntityValidationFailed{Reason: otterError.UserIDToShort}
	}

	result := client.WithContext(ctx).First(&user, "id = ?", id)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return models.User{}, &otterError.Database{Reason: otterError.NoDataFound}
		}
		return models.User{}, result.Error
	}

	return user, nil
}

func DeleteUser(ctx context.Context, id models.UserID) error {
	var user models.User

	if client == nil {
		return &otterError.Database{Reason: otterError.DatabaseIsNotConnected}
	}

	if len(id) == 0 {
		return &otterError.EntityValidationFailed{Reason: otterError.UserIDIsEmpty}
	}

	result := client.WithContext(ctx).Delete(&user, id)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return &otterError.Database{Reason: otterError.NoDataFound}
		}
		return result.Error
	}

	return nil
}