import { defineStore } from 'pinia';
import { authService } from '~/services/auth.service';

interface User {
    id: string;
    email: string;
    fullName: string;
    role: 'INSTRUCTOR' | 'ADMIN' | 'STUDENT';
}

export const useAuthStore = defineStore('auth', {
    state: () => ({
        user: null as User | null,
        token: null as string | null,
        isAuthenticated: false
    }),

    getters: {
        isInstructor: (state) => state.user?.role === 'INSTRUCTOR',
        isAdmin: (state) => state.user?.role === 'ADMIN',
        isStudent: (state) => state.user?.role === 'STUDENT'
    },

    actions: {
        async login(email: string, password: string) {
            try {
                // Call real API
                const response = await authService.login(email, password);

                this.token = response.token;
                this.user = response.user as User;
                this.isAuthenticated = true;

                // Save to localStorage (including refreshToken)
                if (process.client) {
                    localStorage.setItem('token', this.token);
                    localStorage.setItem('refreshToken', response.refreshToken);
                    localStorage.setItem('user', JSON.stringify(this.user));
                }

                return { token: this.token, user: this.user };
            } catch (error: any) {
                // Re-throw error to be handled by login page
                throw error;
            }
        },

        logout() {
            this.user = null;
            this.token = null;
            this.isAuthenticated = false;

            if (process.client) {
                localStorage.removeItem('token');
                localStorage.removeItem('user');
            }
        },

        checkAuth() {
            if (process.client) {
                const token = localStorage.getItem('token');
                const user = localStorage.getItem('user');

                if (token && user) {
                    this.token = token;
                    this.user = JSON.parse(user);
                    this.isAuthenticated = true;
                }
            }
        }
    }
});