import type { SignupUsernameEmailDto } from '$lib/server/api/dtos/signup-username-email.dto'
import { CredentialsRepository } from '$lib/server/api/repositories/credentials.repository'
import { FederatedIdentityRepository } from '$lib/server/api/repositories/federated_identity.repository'
import { WishlistsRepository } from '$lib/server/api/repositories/wishlists.repository'
import { TokensService } from '$lib/server/api/services/tokens.service'
import { UserRolesService } from '$lib/server/api/services/user_roles.service'
import { inject, injectable } from 'tsyringe'
import {CredentialsType, RoleName} from '../databases/tables'
import { type UpdateUser, UsersRepository } from '../repositories/users.repository'
import { CollectionsService } from './collections.service'
import { DrizzleService } from './drizzle.service'
import { WishlistsService } from './wishlists.service'
import type {OAuthUser} from "$lib/server/api/common/types/oauth-user";

@injectable()
export class UsersService {
	constructor(
		@inject(CollectionsService) private readonly collectionsService: CollectionsService,
		@inject(CredentialsRepository) private readonly credentialsRepository: CredentialsRepository,
		@inject(DrizzleService) private readonly drizzleService: DrizzleService,
		@inject(FederatedIdentityRepository) private readonly federatedIdentityRepository: FederatedIdentityRepository,
		@inject(TokensService) private readonly tokenService: TokensService,
		@inject(UsersRepository) private readonly usersRepository: UsersRepository,
		@inject(UserRolesService) private readonly userRolesService: UserRolesService,
		@inject(WishlistsRepository) private readonly wishlistsRepository: WishlistsRepository,
		@inject(WishlistsService) private readonly wishlistsService: WishlistsService,
	) {}

	async create(data: SignupUsernameEmailDto) {
		const { firstName, lastName, email, username, password } = data

		const hashedPassword = await this.tokenService.createHashedToken(password)
		return await this.drizzleService.db.transaction(async (trx) => {
			const createdUser = await this.usersRepository.create(
				{
					first_name: firstName,
					last_name: lastName,
					email,
					username,
				},
				trx,
			)

			if (!createdUser) {
				return null
			}

			const credentials = await this.credentialsRepository.create(
				{
					user_id: createdUser.id,
					type: CredentialsType.PASSWORD,
					secret_data: hashedPassword,
				},
				trx,
			)

			if (!credentials) {
				await this.usersRepository.delete(createdUser.id)
				return null
			}

			await this.userRolesService.addRoleToUser(createdUser.id, RoleName.USER, true, trx)

			await this.wishlistsService.createEmptyNoName(createdUser.id, trx)
			await this.collectionsService.createEmptyNoName(createdUser.id, trx)
		})
	}

	async createOAuthUser(oAuthUser: OAuthUser, oauthProvider: string) {
		return await this.drizzleService.db.transaction(async (trx) => {
			const createdUser = await this.usersRepository.create(
				{
					username: oAuthUser.username || oAuthUser.username,
					email: oAuthUser.email || null,
					first_name: oAuthUser.given_name || null,
					last_name: oAuthUser.family_name || null,
					picture: oAuthUser.picture || null,
					email_verified: oAuthUser.email_verified || false,
				},
				trx,
			)

			if (!createdUser) {
				return null
			}

			await this.federatedIdentityRepository.create(
				{
					identity_provider: oauthProvider,
					user_id: createdUser.id,
					federated_user_id: oAuthUser.sub,
					federated_username: oAuthUser.email || oAuthUser.username,
				},
				trx,
			)

			await this.userRolesService.addRoleToUser(createdUser.id, RoleName.USER, true, trx)

			await this.wishlistsService.createEmptyNoName(createdUser.id, trx)
			await this.collectionsService.createEmptyNoName(createdUser.id, trx)
			return createdUser
		})
	}

	async updateUser(userId: string, data: UpdateUser) {
		return this.usersRepository.update(userId, data)
	}

	async findOneByUsername(username: string) {
		return this.usersRepository.findOneByUsername(username)
	}

	async findOneByEmail(email: string) {
		return this.usersRepository.findOneByEmail(email)
	}

	async findOneById(id: string) {
		return this.usersRepository.findOneById(id)
	}

	async updatePassword(userId: string, password: string) {
		const hashedPassword = await this.tokenService.createHashedToken(password)
		const currentCredentials = await this.credentialsRepository.findPasswordCredentialsByUserId(userId)
		if (!currentCredentials) {
			await this.credentialsRepository.create({
				user_id: userId,
				type: CredentialsType.PASSWORD,
				secret_data: hashedPassword,
			})
		} else {
			await this.credentialsRepository.update(currentCredentials.id, {
				secret_data: hashedPassword,
			})
		}
	}

	async verifyPassword(userId: string, data: { password: string }) {
		const user = await this.usersRepository.findOneById(userId)
		if (!user) {
			throw new Error('User not found')
		}
		const credential = await this.credentialsRepository.findOneByUserIdAndType(userId, CredentialsType.PASSWORD)
		if (!credential) {
			throw new Error('Password credentials not found')
		}
		const { password } = data
		return this.tokenService.verifyHashedToken(credential.secret_data, password)
	}
}