/*
 * SPDX-FileCopyrightText: 2025 Felix Morgner <felix.morgner@gmail.com>
 * SPDX-License-Identifier: LGPL-2.1-only
 */

#include "turns/ui/tracker.hpp"

#include "turns/core/settings.hpp"
#include "turns/core/turn_order_model.hpp"
#include "turns/lang/messages.hpp"
#include "turns/ui/template_widget.hpp"
#include "turns/ui/turn_order_view.hpp"

#include <sigc++/adaptors/bind.h>
#include <sigc++/functors/mem_fun.h>

#include <glibmm/binding.h>
#include <glibmm/i18n.h>
#include <glibmm/objectbase.h>
#include <glibmm/propertyproxy.h>
#include <glibmm/refptr.h>
#include <glibmm/ustring.h>
#include <glibmm/varianttype.h>
#include <glibmm/wrap.h>

#include <giomm/file.h>
#include <giomm/liststore.h>
#include <giomm/settings.h>

#include <gtkmm/applicationwindow.h>
#include <gtkmm/builder.h>
#include <gtkmm/button.h>
#include <gtkmm/cssprovider.h>
#include <gtkmm/error.h>
#include <gtkmm/filedialog.h>
#include <gtkmm/object.h>
#include <gtkmm/revealer.h>
#include <gtkmm/stack.h>
#include <gtkmm/styleprovider.h>
#include <gtkmm/widget.h>

#include <adwaitamm/application.hpp>
#include <adwaitamm/applicationwindow.hpp>
#include <adwaitamm/toast.hpp>
#include <adwaitamm/toastoverlay.hpp>
#include <adwaitamm/windowtitle.hpp>

#include <gtk/gtk.h>
#include <nlohmann/json.hpp>

#include <exception>
#include <format>
#include <print>
#include <string>
#include <utility>

namespace turns::ui
{
  namespace
  {
    auto constexpr static TYPE_NAME = "Tracker";
    auto constexpr static TEMPLATE = "/ch/arknet/Turns/tracker.ui";
  }  // namespace

  Tracker::Tracker()
      : Tracker{{}, core::get_settings()}
  {
  }

  Tracker::Tracker(Glib::RefPtr<Adwaita::Application> const & app, Glib::RefPtr<Gio::Settings> const & settings)
      : Glib::ObjectBase{TYPE_NAME}
      , template_widget{TEMPLATE, app}
      , m_controls{get_widget<Gtk::Revealer>("controls")}
      , m_empty{get_widget<Gtk::Widget>("empty")}
      , m_overlay{get_widget<Adwaita::ToastOverlay>("overlay")}
      , m_stack{get_widget<Gtk::Stack>("stack")}
      , m_start{get_widget<Gtk::Button>("start")}
      , m_title{get_widget<Adwaita::WindowTitle>("title")}
      , m_turn_order{core::TurnOderModel::create()}
      , m_turn_order_view{Gtk::make_managed<TurnOrderView>(m_turn_order)}
      , m_settings{std::move(settings)}
      , m_subtitle{m_title->property_subtitle()}
      , m_css{Gtk::CssProvider::create()}
  {
    setup_colors();
    setup_actions();

    m_stack->add(*m_turn_order_view);

    m_turn_order->is_empty().signal_changed().connect(sigc::mem_fun(*this, &Tracker::update_subtitle));
    m_turn_order->round_number().signal_changed().connect(sigc::mem_fun(*this, &Tracker::update_subtitle));
    update_subtitle();

    // clang-format off
    Glib::Binding::bind_property(m_turn_order->is_empty(),
                                 m_stack->property_visible_child(),
                                 Glib::Binding::Flags::SYNC_CREATE,
                                 [this](auto empty) { return empty ? m_empty : m_turn_order_view; });

    Glib::Binding::bind_property(m_turn_order->is_running(),
                                 m_controls->property_reveal_child(),
                                 Glib::Binding::Flags::SYNC_CREATE);
    // clang-format on

    m_settings->bind("skip-defeated", m_turn_order->skip_defeated());
  }

  auto Tracker::setup_actions() -> void
  {
    // win.add_participant
    // depends-on: turn_order:state == stopped
    {
      auto action = add_action("add_participant", sigc::mem_fun(*this, &Tracker::add_participant));

      Glib::Binding::bind_property(m_turn_order->is_running(),
                                   action->property_enabled(),
                                   Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
    }

    // win.clear
    // depends-on: turn_order:is_empty == false
    {
      auto action = add_action("clear", sigc::mem_fun(*m_turn_order, &core::TurnOderModel::clear));

      Glib::Binding::bind_property(m_turn_order->is_empty(),
                                   action->property_enabled(),
                                   Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
    }

    // win.next
    // depends-on: turn_order:state == running
    {
      auto action = add_action("next", sigc::mem_fun(*m_turn_order, &core::TurnOderModel::next));

      Glib::Binding::bind_property(m_turn_order->is_running(), action->property_enabled(), Glib::Binding::Flags::SYNC_CREATE);
    }

    // win.previous
    // depends-on: turn_order:has_previous == true
    {
      auto action = add_action("previous", sigc::mem_fun(*m_turn_order, &core::TurnOderModel::previous));

      Glib::Binding::bind_property(m_turn_order->has_previous(), action->property_enabled(), Glib::Binding::Flags::SYNC_CREATE);
    }

    // win.start
    // depends-on: turn_order:is_empty == false
    {
      auto action = add_action("start", sigc::mem_fun(*m_turn_order, &core::TurnOderModel::start));

      Glib::Binding::bind_property(m_turn_order->is_empty(),
                                   action->property_enabled(),
                                   Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);

      Glib::Binding::bind_property(m_turn_order->is_running(),
                                   m_start->property_visible(),
                                   Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
    }

    // win.stop
    // depends-on: turn_order:running == true
    {
      auto action = add_action("stop", sigc::mem_fun(*this, &Tracker::stop));

      Glib::Binding::bind_property(m_turn_order->is_running(), action->property_enabled(), Glib::Binding::Flags::SYNC_CREATE);
    }

    // win.delete
    // win.edit
    // win.open
    // win.preferences
    {
      add_action_with_parameter("delete", Glib::VARIANT_TYPE_INT32, sigc::mem_fun(*this, &Tracker::delete_participant));
      add_action_with_parameter("edit", Glib::VARIANT_TYPE_INT32, sigc::mem_fun(*this, &Tracker::edit_participant));
      add_action("open", sigc::mem_fun(*this, &Tracker::open));
      add_action("preferences", sigc::mem_fun(*this, &Tracker::preferences));
    }

    // win.save
    // depends-on: turn_order:is_empty == false
    {
      auto action = add_action("save", sigc::bind(sigc::mem_fun(*this, &Tracker::save), false));

      Glib::Binding::bind_property(m_turn_order->is_empty(),
                                   action->property_enabled(),
                                   Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
    }

    // win.save-as
    // depends-on: turn_order:is_empty == false
    {
      auto action = add_action("save-as", sigc::bind(sigc::mem_fun(*this, &Tracker::save), true));

      Glib::Binding::bind_property(m_turn_order->is_empty(),
                                   action->property_enabled(),
                                   Glib::Binding::Flags::SYNC_CREATE | Glib::Binding::Flags::INVERT_BOOLEAN);
    }
  }

  auto Tracker::setup_colors() -> void
  {
    Gtk::CssProvider::add_provider_for_display(get_display(), m_css, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
    m_settings->signal_changed().connect(sigc::mem_fun(*this, &Tracker::on_settings_changed));
    update_colors();
  }

  auto Tracker::start_replace_content() -> void
  {
    m_file_buffer = m_turn_order->serialize().dump(2);
    m_file->replace_contents_async(sigc::mem_fun(*this, &Tracker::on_replace_content_done), m_file_buffer, m_file_etag);
  }

  auto Tracker::show_error(std::exception const & e) -> void
  {
    auto error = e.what();
    show_toast(std::vformat(_(lang::saving_failed_format), std::make_format_args(error)));
  }

  auto Tracker::show_toast(std::string const & message) -> void
  {
    m_overlay->add_toast(*Adwaita::Toast::create(message));
  }

  auto Tracker::update_colors() -> void
  {
    auto friendly_color = m_settings->get_string("disposition-color-friendly");
    auto hostile_color = m_settings->get_string("disposition-color-hostile");
    auto secret_color = m_settings->get_string("disposition-color-secret");
    m_css->load_from_string(std::format("@define-color friendly {};\n"
                                        "@define-color hostile {};\n"
                                        "@define-color secret {};\n",
                                        friendly_color.c_str(),
                                        hostile_color.c_str(),
                                        secret_color.c_str()));
  }

  auto Tracker::update_subtitle() -> void
  {
    if (m_turn_order->is_empty())
    {
      m_subtitle = _(lang::no_active_turn_order);
    }
    else
    {
      auto round_number = m_turn_order->round_number() + 1;
      m_subtitle = round_number == 0 ? "" : std::vformat(_(lang::round_number), std::make_format_args(round_number));
    }
  }

  auto Tracker::load(Glib::RefPtr<Gio::File> file) -> void
  {
    if (file->query_exists())
    {
      m_file = file;
      m_file->load_contents_async(sigc::mem_fun(*this, &Tracker::on_load_content_done));
      set_sensitive(false);
    }
  }

}  // namespace turns::ui