/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2013 Red Hat, Inc.
 */

/**
 * SECTION:nmt-password-dialog
 * @short_description: A password dialog
 *
 * #NmtPasswordDialog is the password dialog used to get connection
 * secrets when activating a connection.
 */

#include "libnm-client-aux-extern/nm-default-client.h"

#include "nmt-password-dialog.h"
#include "libnmc-base/nm-secret-agent-simple.h"
#include "nmtui.h"

G_DEFINE_TYPE(NmtPasswordDialog, nmt_password_dialog, NMT_TYPE_NEWT_FORM)

#define NMT_PASSWORD_DIALOG_GET_PRIVATE(o) \
    (G_TYPE_INSTANCE_GET_PRIVATE((o), NMT_TYPE_PASSWORD_DIALOG, NmtPasswordDialogPrivate))

typedef struct {
    char      *request_id;
    char      *prompt;
    GPtrArray *secrets;
    GPtrArray *entries;

    NmtNewtWidget *ok, *cancel;
    NmtNewtWidget *last_entry;
    NmtNewtWidget *secret_grid;

    gboolean succeeded;
} NmtPasswordDialogPrivate;

enum {
    PROP_0,
    PROP_REQUEST_ID,
    PROP_PROMPT,
    PROP_SECRETS,

    LAST_PROP
};

/**
 * nmt_password_dialog_new:
 * @request_id: the request ID from the #NMSecretAgentSimple
 * @title: the dialog title
 * @prompt: the prompt text to display
 * @secrets: (element-type #NMSecretAgentSimpleSecret): the secrets requested
 *
 * Creates a new #NmtPasswordDialog to request passwords from
 * the user.
 *
 * Returns: a new #NmtPasswordDialog.
 */
NmtNewtForm *
nmt_password_dialog_new(const char *request_id,
                        const char *title,
                        const char *prompt,
                        GPtrArray  *secrets)
{
    return g_object_new(NMT_TYPE_PASSWORD_DIALOG,
                        "request-id",
                        request_id,
                        "title",
                        title,
                        "prompt",
                        prompt,
                        "secrets",
                        secrets,
                        NULL);
}

static void
nmt_password_dialog_init(NmtPasswordDialog *dialog)
{
    NmtPasswordDialogPrivate *priv = NMT_PASSWORD_DIALOG_GET_PRIVATE(dialog);

    priv->entries = g_ptr_array_new();
}

static void
maybe_save_input_and_exit(NmtNewtWidget *widget, gpointer dialog)
{
    NmtPasswordDialogPrivate *priv = NMT_PASSWORD_DIALOG_GET_PRIVATE(dialog);
    int                       i;

    /* This gets invoked when the user types Return in the final entry,
     * but the form may not be fully valid in that case.
     */
    if (!nmt_newt_widget_get_valid(priv->secret_grid))
        return;

    priv->succeeded = TRUE;

    for (i = 0; i < priv->secrets->len; i++) {
        NMSecretAgentSimpleSecret *secret = priv->secrets->pdata[i];

        g_free(secret->value);
        g_object_get(priv->entries->pdata[i], "text", &secret->value, NULL);
    }

    nmt_newt_form_quit(nmt_newt_widget_get_form(widget));
}

static void
nmt_password_dialog_constructed(GObject *object)
{
    NmtPasswordDialog           *dialog = NMT_PASSWORD_DIALOG(object);
    NmtPasswordDialogPrivate    *priv   = NMT_PASSWORD_DIALOG_GET_PRIVATE(dialog);
    NmtNewtWidget               *widget;
    NmtNewtGrid                 *grid, *secret_grid;
    NmtNewtButtonBox            *bbox;
    gs_unref_ptrarray GPtrArray *masked_entries = g_ptr_array_new();
    int                          i;

    widget = nmt_newt_grid_new();
    nmt_newt_form_set_content(NMT_NEWT_FORM(dialog), widget);
    grid = NMT_NEWT_GRID(widget);

    widget = nmt_newt_textbox_new(0, 60);
    nmt_newt_textbox_set_text(NMT_NEWT_TEXTBOX(widget), priv->prompt);
    nmt_newt_grid_add(grid, widget, 0, 0);

    widget = nmt_newt_grid_new();
    nmt_newt_grid_add(grid, widget, 0, 1);
    nmt_newt_widget_set_padding(widget, 0, 1, 0, 1);
    priv->secret_grid = widget;
    secret_grid       = NMT_NEWT_GRID(widget);

    for (i = 0; i < priv->secrets->len; i++) {
        NMSecretAgentSimpleSecret *secret = priv->secrets->pdata[i];
        NmtNewtEntryFlags          flags;
        gboolean                   masked;

        widget = nmt_newt_label_new(secret->pretty_name);
        nmt_newt_grid_add(secret_grid, widget, 0, i);
        nmt_newt_widget_set_padding(widget, 4, 0, 1, 0);

        flags  = NMT_NEWT_ENTRY_NONEMPTY;
        masked = secret->is_secret && !secret->force_echo;
        if (masked)
            flags |= NMT_NEWT_ENTRY_PASSWORD;
        widget = nmt_newt_entry_new(30, flags);
        if (secret->value)
            nmt_newt_entry_set_text(NMT_NEWT_ENTRY(widget), secret->value);
        nmt_newt_grid_add(secret_grid, widget, 1, i);
        g_ptr_array_add(priv->entries, widget);
        if (masked)
            g_ptr_array_add(masked_entries, widget);

        if (i == priv->secrets->len - 1) {
            priv->last_entry = widget;
            g_signal_connect(widget, "activated", G_CALLBACK(maybe_save_input_and_exit), dialog);
        }
    }

    if (masked_entries->len > 0) {
        widget = nmt_newt_checkbox_new(_("Show password"));
        nmt_newt_grid_add(secret_grid, widget, 1, priv->secrets->len);
        for (i = 0; i < masked_entries->len; i++) {
            g_object_bind_property(widget,
                                   "active",
                                   masked_entries->pdata[i],
                                   "password",
                                   G_BINDING_INVERT_BOOLEAN | G_BINDING_SYNC_CREATE);
        }
    }

    widget = nmt_newt_button_box_new(NMT_NEWT_BUTTON_BOX_HORIZONTAL);
    nmt_newt_grid_add(grid, widget, 0, 2);
    bbox = NMT_NEWT_BUTTON_BOX(widget);

    priv->cancel = nmt_newt_button_box_add_end(NMT_NEWT_BUTTON_BOX(bbox), _("Cancel"));
    nmt_newt_widget_set_exit_on_activate(priv->cancel, TRUE);

    priv->ok = nmt_newt_button_box_add_end(NMT_NEWT_BUTTON_BOX(bbox), _("OK"));
    g_signal_connect(priv->ok, "activated", G_CALLBACK(maybe_save_input_and_exit), dialog);
    g_object_bind_property(priv->secret_grid,
                           "valid",
                           priv->ok,
                           "sensitive",
                           G_BINDING_SYNC_CREATE);

    G_OBJECT_CLASS(nmt_password_dialog_parent_class)->constructed(object);
}

static void
nmt_password_dialog_finalize(GObject *object)
{
    NmtPasswordDialogPrivate *priv = NMT_PASSWORD_DIALOG_GET_PRIVATE(object);

    g_free(priv->request_id);
    g_free(priv->prompt);
    nm_clear_pointer(&priv->entries, g_ptr_array_unref);
    nm_clear_pointer(&priv->secrets, g_ptr_array_unref);

    G_OBJECT_CLASS(nmt_password_dialog_parent_class)->finalize(object);
}

static void
nmt_password_dialog_set_property(GObject      *object,
                                 guint         prop_id,
                                 const GValue *value,
                                 GParamSpec   *pspec)
{
    NmtPasswordDialogPrivate *priv = NMT_PASSWORD_DIALOG_GET_PRIVATE(object);

    switch (prop_id) {
    case PROP_REQUEST_ID:
        priv->request_id = g_value_dup_string(value);
        break;
    case PROP_PROMPT:
        priv->prompt = g_value_dup_string(value);
        break;
    case PROP_SECRETS:
        priv->secrets = g_value_dup_boxed(value);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

static void
nmt_password_dialog_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
    NmtPasswordDialogPrivate *priv = NMT_PASSWORD_DIALOG_GET_PRIVATE(object);

    switch (prop_id) {
    case PROP_REQUEST_ID:
        g_value_set_string(value, priv->request_id);
        break;
    case PROP_PROMPT:
        g_value_set_string(value, priv->prompt);
        break;
    case PROP_SECRETS:
        g_value_set_boxed(value, priv->secrets);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
        break;
    }
}

static void
nmt_password_dialog_class_init(NmtPasswordDialogClass *dialog_class)
{
    GObjectClass *object_class = G_OBJECT_CLASS(dialog_class);

    g_type_class_add_private(dialog_class, sizeof(NmtPasswordDialogPrivate));

    /* virtual methods */
    object_class->constructed  = nmt_password_dialog_constructed;
    object_class->set_property = nmt_password_dialog_set_property;
    object_class->get_property = nmt_password_dialog_get_property;
    object_class->finalize     = nmt_password_dialog_finalize;

    /**
     * NmtPasswordDialog:request-id:
     *
     * The request ID from the #NMSecretAgentSimple
     */
    g_object_class_install_property(
        object_class,
        PROP_REQUEST_ID,
        g_param_spec_string("request-id",
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
    /**
     * NmtPasswordDialog:prompt:
     *
     * The prompt text.
     */
    g_object_class_install_property(
        object_class,
        PROP_PROMPT,
        g_param_spec_string("prompt",
                            "",
                            "",
                            NULL,
                            G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
    /**
     * NmtPasswordDialog:secrets:
     *
     * The array of request secrets
     *
     * Element-Type: #NMSecretAgentSimpleSecret.
     */
    g_object_class_install_property(
        object_class,
        PROP_SECRETS,
        g_param_spec_boxed("secrets",
                           "",
                           "",
                           G_TYPE_PTR_ARRAY,
                           G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
}

/**
 * nmt_password_dialog_succeeded:
 * @dialog: the #NmtPasswordDialog
 *
 * After the dialog has exited, returns %TRUE if the user clicked
 * "OK", %FALSE if "Cancel".
 *
 * Returns: whether the dialog succeeded.
 */
gboolean
nmt_password_dialog_succeeded(NmtPasswordDialog *dialog)
{
    NmtPasswordDialogPrivate *priv = NMT_PASSWORD_DIALOG_GET_PRIVATE(dialog);

    return priv->succeeded;
}

/**
 * nmt_password_dialog_get_request_id:
 * @dialog: the #NmtPasswordDialog
 *
 * Gets the dialog's request ID.
 *
 * Returns: the dialog's request ID.
 */
const char *
nmt_password_dialog_get_request_id(NmtPasswordDialog *dialog)
{
    NmtPasswordDialogPrivate *priv = NMT_PASSWORD_DIALOG_GET_PRIVATE(dialog);

    return priv->request_id;
}

/**
 * nmt_password_dialog_get_secrets:
 * @dialog: the #NmtPasswordDialog
 *
 * Gets the dialog's secrets array.
 *
 * Returns: (transfer none): the dialog's secrets array.
 */
GPtrArray *
nmt_password_dialog_get_secrets(NmtPasswordDialog *dialog)
{
    NmtPasswordDialogPrivate *priv = NMT_PASSWORD_DIALOG_GET_PRIVATE(dialog);

    return priv->secrets;
}
