import { defineStore } from 'pinia';

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) {
            // TODO: Replace with real API call
            // const { $api } = useNuxtApp();
            // const response = await $api('/auth/login', {
            //   method: 'POST',
            //   body: { email, password }
            // });

            // Mock login for development
            const mockUser: User = {
                id: '1',
                email: email,
                fullName: 'อาจารย์ทดสอบ',
                role: 'INSTRUCTOR'
            };

            this.token = 'mock-jwt-token';
            this.user = mockUser;
            this.isAuthenticated = true;

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

            return { token: this.token, user: this.user };
        },

        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;
                }
            }
        }
    }
});