package services

import (
	"strings"

	"dove/enums"
	"dove/messages"
	"dove/models"
	"dove/repositories"
	"dove/types"
	"dove/utils/meta"
	"dove/utils/shortcuts"
)

func ListUsers(pagination meta.Pagination, sorting meta.Sorting, search string) types.PaginatedResponse {
	users, total := repositories.ListUsers(pagination, sorting, search)
	return pagination.Response(users, total)
}

func CreateUser(request types.CreateUserRequest) *types.ServiceError {
	username := strings.TrimSpace(request.Username)
	displayName := strings.TrimSpace(request.DisplayName)

	if username == "" {
		return shortcuts.ServiceError(enums.BadRequest, messages.UserUsernameRequired)
	}

	if displayName == "" {
		return shortcuts.ServiceError(enums.BadRequest, messages.UserDisplayNameRequired)
	}

	if repositories.FindUserByUsername(username) != nil {
		return shortcuts.ServiceError(enums.Unprocessable, messages.UserAlreadyExists)
	}

	user := &models.User{
		Username:    username,
		DisplayName: displayName,
	}

	if createError := repositories.CreateUser(user); createError != nil {
		return shortcuts.ServiceError(enums.Internal, messages.UserCreationFailed)
	}

	return nil
}

func AllUsers() []models.User {
	return repositories.AllUsers()
}