no-copy-frontend/src/app/actions/auth.ts

'use server'

import { SignupFormSchema, loginFormSchema } from '@/app/lib/definitions';
import { createSession, deleteSession, getSessionData } from '@/app/lib/session';
import { redirect } from 'next/navigation'

export async function logout() {
	const token = await getSessionData('token');

	try {
		await fetch('http://localhost/api/auth/logout', {
			method: 'POST',
			headers: {
				"Content-Type": "application/json",
				"Accept": "application/json",
				"Authorization": `Bearer ${token}`,
			}
		});
	} catch (error) {
		throw error;
	}

	await deleteSession();
	redirect('/login');
}

export async function authorization(
	state: string | undefined,
	formData: FormData,
) {
	const validatedFields = loginFormSchema.safeParse({
		email: formData.get('email'),
		password: formData.get('password'),
	})

	if (!validatedFields.success) {
		return 'error';
	}

	try {
		const { email, password } = validatedFields.data;
		const response = await fetch('http://localhost/api/auth/login', {
			method: 'POST',
			body: JSON.stringify({
				email: email,
				password: password
			}),
			headers: {
				"Content-Type": "application/json",
				"Accept": "application/json"
			}
		});
		if (response.ok) {
			let parsed = await response.json();
			await createSession(parsed.token, parsed.email);
		} else {
			throw new Error('Something went wrong. from server');
		}

	} catch (error) {
		if (error) {
			return 'Something went wrong. from server';
		}
		throw error;
	}

	redirect('/pages/dashboard');
}

export async function registration(
	state: Record<string, string> | undefined,
	formData: FormData,
) {
	const validatedFields = SignupFormSchema.safeParse({
		full_name: formData.get('full_name'),
		email: formData.get('email'),
		password: formData.get('password'),
		confirm_password: formData.get('confirm_password'),
	})

	if (!validatedFields.success) {
		const errors: Record<string, string> = {}
		JSON.parse(validatedFields.error.message).forEach((obj: {
			message: string,
			path: string
		}) => {
			if (errors[obj.path[0]]) {
				errors[obj.path[0]] = `${errors[obj.path[0]]} ${obj.message}`;
			} else {
				errors[obj.path[0]] = obj.message;
			}
		});

		return errors;
	}

	try {
		const { full_name, email, password } = validatedFields.data;
		const response = await fetch('http://localhost/api/auth/register', {
			method: 'POST',
			body: JSON.stringify({ fullName: full_name, email, password }),
			headers: {
				"Content-Type": "application/json",
				"Accept": "application/json"
			}
		});

		if (response.ok) {
			let parsed = await response.json();
			await createSession(parsed.token, email);
		} else {
			throw new Error('Something went wrong. from server');
		}
	} catch (error) {
		if (error) {
			const errors: Record<string, string> = {}
			errors['server'] = 'Something went wrong. from server'
			return errors;
		}
		throw error;
	}

	redirect('/pages/dashboard');
}