auth/signup.py

# auth/signup.py
from dash import html, dcc, Input, Output, State, callback, no_update
import dash_bootstrap_components as dbc
from database import engine, users
from sqlalchemy import select, insert
from werkzeug.security import generate_password_hash

# Opsi untuk Jabatan
role_options = [
    {'label': 'Petugas Kesehatan Dasar', 'value': 'petugas_kesdas'},
    {'label': 'Petugas Rekam Medis Puskesmas', 'value': 'pmik'},
    {'label': 'Peneliti', 'value': 'peneliti'},
    {'label': 'Lainnya', 'value': 'lainnya'}
]

signup_layout = dbc.Container(
    fluid=True, # Mengambil lebar penuh viewport
    className="d-flex flex-column justify-content-center align-items-center min-vh-100 p-0 m-0", # Center vertikal & horizontal, tinggi minimal 100% viewport, hapus padding/margin default container
    style={'background': 'linear-gradient(135deg, #1e2a47, #2c3e50)'},
    children=[
        dcc.Location(id='signup-url-redirect', refresh=True),
        dbc.Row( # Baris untuk menengahkan Card
            dbc.Col( # Kolom untuk Card, batasi lebar
                dbc.Card(
                    dbc.CardBody([
                        html.H2("Daftar Akun Baru", className="text-center mb-4", style={'color': '#2c3e50'}),
                        # Pesan error/sukses di atas form
                        html.Div(id='signup-message', className="mb-3 text-center"),
                        
                        dbc.Form([
                            # Nama Lengkap
                            dbc.Row([
                                dbc.Label("Nama Lengkap", width=4, className="text-md-end"), # Label di kiri pada layar medium+
                                dbc.Col(
                                    dbc.Input(id='signup-fullname', type='text', placeholder='Masukkan nama lengkap Anda'),
                                    width=8
                                )
                            ], className="mb-3 align-items-center"),

                            # Username
                            dbc.Row([
                                dbc.Label("Username", width=4, className="text-md-end"),
                                dbc.Col(
                                    dbc.Input(id='signup-username', type='text', placeholder='Pilih username (unik)'),
                                    width=8
                                )
                            ], className="mb-3 align-items-center"),

                            # Email
                            dbc.Row([
                                dbc.Label("Email (Opsional)", width=4, className="text-md-end"),
                                dbc.Col(
                                    dbc.Input(id='signup-email', type='email', placeholder='Masukkan alamat email'),
                                    width=8
                                )
                            ], className="mb-3 align-items-center"),

                            # Password
                            dbc.Row([
                                dbc.Label("Password", width=4, className="text-md-end"),
                                dbc.Col(
                                    dbc.Input(id='signup-password', type='password', placeholder='Buat password (minimal 6 karakter)'),
                                    width=8
                                )
                            ], className="mb-3 align-items-center"),

                            # Konfirmasi Password
                            dbc.Row([
                                dbc.Label("Konfirmasi Password", width=4, className="text-md-end"),
                                dbc.Col(
                                    dbc.Input(id='signup-confirm-password', type='password', placeholder='Ulangi password'),
                                    width=8
                                )
                            ], className="mb-3 align-items-center"),

                            # Jabatan
                            dbc.Row([
                                dbc.Label("Jabatan", width=4, className="text-md-end"),
                                dbc.Col(
                                    dcc.Dropdown(
                                        id='signup-role',
                                        options=role_options,
                                        placeholder='Pilih jabatan Anda',
                                    ),
                                    width=8
                                )
                            ], className="mb-3 align-items-center"),

                            dbc.Button("Daftar", id='signup-button', color="success", className="w-100 mt-4", n_clicks=0, size="lg"),
                        ]),
                        html.Div(
                            dcc.Link("Sudah punya akun? Login di sini", href="/login", className="d-block mt-3 text-center"),
                        )
                    ]),
                    className="shadow-lg", # Shadow pada card
                    style={'padding': '2rem'} # Tambahkan padding dalam card
                ),
                width=12, # Lebar kolom untuk layar kecil
                sm=10,    # Sedikit lebih sempit di layar small
                md=8,     # Lebih sempit lagi di layar medium
                lg=6,     # Paling ideal di layar large
                xl=5      # Mungkin terlalu sempit, bisa disesuaikan
            ),
            justify="center", # Tengahkan kolom di dalam baris
            className="w-100" # Pastikan baris mengambil lebar penuh
        )
    ]
)

# Callback untuk handle signup (TETAP SAMA SEPERTI SEBELUMNYA)
@callback(
    Output('signup-url-redirect', 'pathname', allow_duplicate=True),
    Output('signup-message', 'children', allow_duplicate=True),
    Input('signup-button', 'n_clicks'),
    State('signup-fullname', 'value'),
    State('signup-username', 'value'),
    State('signup-password', 'value'),
    State('signup-confirm-password', 'value'),
    State('signup-email', 'value'),
    State('signup-role', 'value'),
    prevent_initial_call=True
)
def handle_signup(n_clicks_signup, fullname, username, password, confirm_password, email, role):
    if not fullname or not username or not password or not confirm_password or not role:
        return no_update, dbc.Alert("Semua field (Nama Lengkap, Username, Password, Konfirmasi, Jabatan) harus diisi.", color="danger", dismissable=True, duration=4000)
    
    if len(password) < 6:
        return no_update, dbc.Alert("Password minimal 6 karakter.", color="danger", dismissable=True, duration=4000)

    if password != confirm_password:
        return no_update, dbc.Alert("Password dan konfirmasi password tidak cocok.", color="danger", dismissable=True, duration=4000)

    username = username.strip()
    email = email.strip() if email else None

    with engine.connect() as conn:
        stmt_check_username = select(users.c.id_user).where(users.c.username == username)
        if conn.execute(stmt_check_username).fetchone():
            return no_update, dbc.Alert(f"Username '{username}' sudah digunakan.", color="warning", dismissable=True, duration=4000)

        if email:
            stmt_check_email = select(users.c.id_user).where(users.c.email == email)
            if conn.execute(stmt_check_email).fetchone():
                return no_update, dbc.Alert(f"Email '{email}' sudah terdaftar.", color="warning", dismissable=True, duration=4000)

        hashed_password_to_store = generate_password_hash(password)
        # print(f"--- SIGNUP DEBUG: Username: {username}, Password Asli: '{password}', Hashed untuk DB: {hashed_password_to_store[:20]}... ---")

        try:
            new_user_values = {
                'nama_lengkap': fullname.strip(),
                'username': username,
                'password': hashed_password_to_store,
                'jabatan': role
            }
            if email:
                new_user_values['email'] = email

            insert_stmt = users.insert().values(**new_user_values)
            conn.execute(insert_stmt)
            conn.commit()
            
            return '/login', dbc.Alert("Registrasi berhasil! Silakan login.", color="success", duration=5000)

        except Exception as e:
            conn.rollback()
            # print(f"--- SIGNUP ERROR: {e} ---")
            # import traceback
            # traceback.print_exc()
            return no_update, dbc.Alert(f"Terjadi kesalahan saat registrasi.", color="danger", dismissable=True, duration=4000)

    return no_update, ""

layout = signup_layout