activity_bar.cc

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#include "app/editor/menu/activity_bar.h"
 
#include <algorithm>
#include <cctype>
#include <cstddef>
#include <cstring>
#include <functional>
#include <string>
#include <unordered_set>
#include <utility>
#include <vector>
 
#include "absl/strings/str_format.h"
#include "app/editor/menu/activity_bar_actions_registry.h"
#include "app/editor/system/session/user_settings.h"
#include "app/editor/system/workspace_window_manager.h"
#include "app/gui/core/icons.h"
#include "app/gui/core/layout_helpers.h"
#include "app/gui/core/style_guard.h"
#include "app/gui/core/theme_manager.h"
#include "app/gui/core/ui_config.h"
#include "app/gui/core/ui_helpers.h"
#include "app/gui/widgets/themed_widgets.h"
#include "core/color.h"
#include "imgui/imgui.h"
 
namespace yaze {
namespace editor {
 
namespace {
constexpr const char* kSidebarDragPayload = "YAZE_SIDEBAR_CAT";
 
void PersistSettings(UserSettings* settings) {
  if (!settings) return;
  (void)settings->Save();
}
}  // namespace
 
ActivityBar::ActivityBar(WorkspaceWindowManager& window_manager,
                         std::function<bool()> is_dungeon_workbench_mode,
                         std::function<void(bool)> set_dungeon_workflow_mode)
    : window_manager_(window_manager),
      window_browser_(window_manager),
      window_sidebar_(window_manager, std::move(is_dungeon_workbench_mode),
                      std::move(set_dungeon_workflow_mode)),
      actions_registry_(std::make_unique<MoreActionsRegistry>()) {}
 
ActivityBar::~ActivityBar() = default;
 
std::vector<std::string> ActivityBar::SortCategories(
    const std::vector<std::string>& input,
    const std::vector<std::string>& order,
    const std::unordered_set<std::string>& pinned,
    const std::unordered_set<std::string>& hidden) {
  // visible preserves input order, filters hidden.
  std::vector<std::string> visible;
  visible.reserve(input.size());
  std::unordered_set<std::string> visible_set;
  visible_set.reserve(input.size());
  for (const auto& c : input) {
    if (hidden.count(c)) continue;
    visible.push_back(c);
    visible_set.insert(c);
  }
 
  // Pinned ∩ visible, in input order.
  std::vector<std::string> pinned_visible;
  std::unordered_set<std::string> pinned_visible_set;
  for (const auto& c : input) {
    if (visible_set.count(c) && pinned.count(c)) {
      pinned_visible.push_back(c);
      pinned_visible_set.insert(c);
    }
  }
 
  // When the user has never customized the order, preserve the canonical
  // input ordering for every non-pinned visible entry. Only once `order` has
  // content do we split into "explicit order" + "true newcomers alphabetical".
  std::vector<std::string> ordered;
  std::vector<std::string> newcomers;
 
  if (order.empty()) {
    for (const auto& c : visible) {
      if (pinned_visible_set.count(c)) continue;
      ordered.push_back(c);
    }
  } else {
    std::unordered_set<std::string> ordered_set;
    for (const auto& c : order) {
      if (!visible_set.count(c)) continue;
      if (pinned_visible_set.count(c)) continue;
      ordered.push_back(c);
      ordered_set.insert(c);
    }
    std::unordered_set<std::string> order_set(order.begin(), order.end());
    for (const auto& c : visible) {
      if (pinned_visible_set.count(c)) continue;
      if (order_set.count(c)) continue;
      newcomers.push_back(c);
    }
    std::sort(newcomers.begin(), newcomers.end());
  }
 
  std::vector<std::string> result;
  result.reserve(pinned_visible.size() + ordered.size() + newcomers.size());
  result.insert(result.end(), pinned_visible.begin(), pinned_visible.end());
  result.insert(result.end(), ordered.begin(), ordered.end());
  result.insert(result.end(), newcomers.begin(), newcomers.end());
  return result;
}
 
void ActivityBar::Render(
    size_t session_id, const std::string& active_category,
    const std::vector<std::string>& all_categories,
    const std::unordered_set<std::string>& active_editor_categories,
    std::function<bool()> has_rom, std::function<bool()> is_rom_dirty) {
  if (!window_manager_.IsSidebarVisible())
    return;
 
  // When the startup dashboard is active there are no meaningful left-panel
  // cards; keep the activity rail visible but collapse the side panel.
  const bool dashboard_active =
      (active_category == WorkspaceWindowManager::kDashboardCategory);
  if (dashboard_active && window_manager_.IsSidebarExpanded()) {
    window_manager_.SetSidebarExpanded(false);
  }
 
  DrawActivityBarStrip(session_id, active_category, all_categories,
                       active_editor_categories, has_rom,
                       std::move(is_rom_dirty));
 
  if (window_manager_.IsSidebarExpanded() && !dashboard_active) {
    DrawSidePanel(session_id, active_category, has_rom);
  }
}
 
void ActivityBar::DrawCategoryContextMenu(const std::string& category) {
  if (!user_settings_) return;
 
  // ImGui generates a stable popup id from the last item by default, but we
  // pass an explicit id so the popup survives ImGui::PushID changes.
  std::string popup_id = absl::StrFormat("##SidebarCtx_%s", category);
  if (!ImGui::BeginPopupContextItem(popup_id.c_str())) return;
 
  auto& prefs = user_settings_->prefs();
  const bool is_pinned = prefs.sidebar_pinned.count(category) > 0;
  const bool is_hidden = prefs.sidebar_hidden.count(category) > 0;
 
  const char* pin_label = is_pinned ? "Unpin from top" : "Pin to top";
  if (ImGui::MenuItem(pin_label)) {
    if (is_pinned) {
      prefs.sidebar_pinned.erase(category);
    } else {
      prefs.sidebar_pinned.insert(category);
    }
    PersistSettings(user_settings_);
  }
 
  const char* hide_label = is_hidden ? "Show on sidebar" : "Hide from sidebar";
  if (ImGui::MenuItem(hide_label)) {
    if (is_hidden) {
      prefs.sidebar_hidden.erase(category);
    } else {
      prefs.sidebar_hidden.insert(category);
    }
    PersistSettings(user_settings_);
  }
 
  ImGui::Separator();
  if (ImGui::MenuItem("Reset Sidebar Order")) {
    prefs.sidebar_order.clear();
    PersistSettings(user_settings_);
  }
  if (ImGui::MenuItem("Show All Categories")) {
    prefs.sidebar_hidden.clear();
    PersistSettings(user_settings_);
  }
 
  ImGui::EndPopup();
}
 
void ActivityBar::HandleReorderDragAndDrop(const std::string& category) {
  if (!user_settings_) return;
  auto& prefs = user_settings_->prefs();
 
  // Pinned items participate in pin grouping but not in drag-reorder — the
  // pin block's order is driven by the registry's canonical order.
  const bool is_pinned = prefs.sidebar_pinned.count(category) > 0;
 
  if (!is_pinned && ImGui::BeginDragDropSource(
                        ImGuiDragDropFlags_SourceAllowNullID)) {
    ImGui::SetDragDropPayload(kSidebarDragPayload, category.data(),
                              category.size());
    ImGui::TextUnformatted(category.c_str());
    ImGui::EndDragDropSource();
  }
 
  if (ImGui::BeginDragDropTarget()) {
    const ImGuiPayload* payload =
        ImGui::AcceptDragDropPayload(kSidebarDragPayload);
    if (payload != nullptr && payload->Data != nullptr) {
      std::string src(static_cast<const char*>(payload->Data),
                      static_cast<size_t>(payload->DataSize));
      if (src != category && !prefs.sidebar_pinned.count(src) &&
          !prefs.sidebar_pinned.count(category)) {
        auto& order = prefs.sidebar_order;
        auto rm = std::remove(order.begin(), order.end(), src);
        if (rm != order.end()) {
          order.erase(rm, order.end());
        }
        auto dst = std::find(order.begin(), order.end(), category);
        if (dst == order.end()) {
          // Target wasn't tracked yet; keep moves local by appending.
          order.push_back(src);
        } else {
          order.insert(dst, src);
        }
        PersistSettings(user_settings_);
      }
    }
    ImGui::EndDragDropTarget();
  }
}
 
void ActivityBar::DrawActivityBarStrip(
    size_t session_id, const std::string& active_category,
    const std::vector<std::string>& all_categories,
    const std::unordered_set<std::string>& active_editor_categories,
    std::function<bool()> has_rom, std::function<bool()> is_rom_dirty) {
 
  const auto& theme = gui::ThemeManager::Get().GetCurrentTheme();
  const ImGuiViewport* viewport = ImGui::GetMainViewport();
  const float top_inset = gui::LayoutHelpers::GetTopInset();
  const auto safe_area = gui::LayoutHelpers::GetSafeAreaInsets();
  const float viewport_height =
      std::max(0.0f, viewport->WorkSize.y - top_inset - safe_area.bottom);
  const float bar_width = gui::UIConfig::kActivityBarWidth;
 
  constexpr ImGuiWindowFlags kExtraFlags =
      ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoFocusOnAppearing |
      ImGuiWindowFlags_NoNavFocus | ImGuiWindowFlags_NoBringToFrontOnFocus;
 
  gui::FixedPanel bar(
      "##ActivityBar",
      ImVec2(viewport->WorkPos.x, viewport->WorkPos.y + top_inset),
      ImVec2(bar_width, viewport_height),
      {.bg = gui::ConvertColorToImVec4(theme.surface),
       .border = gui::ConvertColorToImVec4(theme.text_disabled),
       .padding = {0.0f, 8.0f},
       .spacing = {0.0f, 8.0f},
       .border_size = 1.0f},
      kExtraFlags);
 
  if (bar) {
 
    // Global Search / Command Palette at top
    if (gui::TransparentIconButton(ICON_MD_SEARCH, gui::IconSize::ActivityBar(),
                                   "Global Search (Ctrl+Shift+F)", false,
                                   ImVec4(0, 0, 0, 0), "activity_bar",
                                   "search")) {
      window_manager_.TriggerShowSearch();
    }
 
    // Separator
    ImGui::Spacing();
    ImVec2 sep_p1 = ImGui::GetCursorScreenPos();
    ImVec2 sep_p2 =
        ImVec2(sep_p1.x + gui::UIConfig::kActivityBarWidth, sep_p1.y);
    ImGui::GetWindowDrawList()->AddLine(
        sep_p1, sep_p2,
        ImGui::ColorConvertFloat4ToU32(gui::ConvertColorToImVec4(theme.border)),
        1.0f);
    ImGui::Spacing();
 
    bool rom_loaded = has_rom ? has_rom() : false;
 
    // Apply per-user pin/order/hide prefs if available. Dashboard category
    // always stays excluded regardless of prefs so we strip it first.
    std::vector<std::string> filtered_input;
    filtered_input.reserve(all_categories.size());
    for (const auto& cat : all_categories) {
      if (cat == WorkspaceWindowManager::kDashboardCategory) continue;
      filtered_input.push_back(cat);
    }
 
    std::vector<std::string> effective = filtered_input;
    if (user_settings_) {
      const auto& prefs = user_settings_->prefs();
      effective = SortCategories(filtered_input, prefs.sidebar_order,
                                 prefs.sidebar_pinned, prefs.sidebar_hidden);
 
      // Empty-state guard: if the user hid every category, silently reset
      // the hidden set so the rail stays usable.
      if (effective.empty() && !filtered_input.empty()) {
        user_settings_->prefs().sidebar_hidden.clear();
        PersistSettings(user_settings_);
        effective = filtered_input;
      }
    }
 
    // Draw categories in effective order.
    for (const auto& cat : effective) {
      bool is_selected = (cat == active_category);
      bool panel_expanded = window_manager_.IsSidebarExpanded();
      bool has_active_editor = active_editor_categories.count(cat) > 0;
 
      // Emulator is always available, others require ROM
      bool category_enabled =
          rom_loaded || (cat == "Emulator") || (cat == "Agent");
 
      // Get category-specific theme colors for expressive appearance
      auto cat_theme = WorkspaceWindowManager::GetCategoryTheme(cat);
      ImVec4 cat_color(cat_theme.r, cat_theme.g, cat_theme.b, cat_theme.a);
      ImVec4 glow_color(cat_theme.glow_r, cat_theme.glow_g, cat_theme.glow_b,
                        1.0f);
 
      // Active Indicator with category-specific colors
      if (is_selected && category_enabled && panel_expanded) {
        ImVec2 pos = ImGui::GetCursorScreenPos();
 
        // Outer glow shadow (subtle, category color at 15% opacity)
        ImVec4 outer_glow = glow_color;
        outer_glow.w = 0.15f;
        ImGui::GetWindowDrawList()->AddRectFilled(
            ImVec2(pos.x - 1.0f, pos.y - 1.0f),
            ImVec2(pos.x + 49.0f, pos.y + 41.0f),
            ImGui::ColorConvertFloat4ToU32(outer_glow), 4.0f);
 
        // Background highlight (category glow at 30% opacity)
        ImVec4 highlight = glow_color;
        highlight.w = 0.30f;
        ImGui::GetWindowDrawList()->AddRectFilled(
            pos, ImVec2(pos.x + 48.0f, pos.y + 40.0f),
            ImGui::ColorConvertFloat4ToU32(highlight), 2.0f);
 
        // Left accent border (4px wide, category-specific color)
        ImGui::GetWindowDrawList()->AddRectFilled(
            pos, ImVec2(pos.x + 4.0f, pos.y + 40.0f),
            ImGui::ColorConvertFloat4ToU32(cat_color));
      }
 
      std::string icon = WorkspaceWindowManager::GetCategoryIcon(cat);
 
      // Subtle indicator even when collapsed
      if (is_selected && category_enabled && !panel_expanded) {
        ImVec2 pos = ImGui::GetCursorScreenPos();
        ImVec4 highlight = glow_color;
        highlight.w = 0.15f;
        ImGui::GetWindowDrawList()->AddRectFilled(
            pos, ImVec2(pos.x + 48.0f, pos.y + 40.0f),
            ImGui::ColorConvertFloat4ToU32(highlight), 2.0f);
        ImVec4 accent = cat_color;
        accent.w = 0.6f;
        ImGui::GetWindowDrawList()->AddRectFilled(
            pos, ImVec2(pos.x + 3.0f, pos.y + 40.0f),
            ImGui::ColorConvertFloat4ToU32(accent));
      }
 
      // Dim indicator for categories whose editor is open but not currently
      // selected. Makes "what's open" readable at a glance without competing
      // with the full selection glow above.
      if (!is_selected && category_enabled && has_active_editor) {
        ImVec2 pos = ImGui::GetCursorScreenPos();
        ImVec4 dim_accent = cat_color;
        dim_accent.w = 0.35f;
        ImGui::GetWindowDrawList()->AddRectFilled(
            ImVec2(pos.x + 45.0f, pos.y + 8.0f),
            ImVec2(pos.x + 48.0f, pos.y + 32.0f),
            ImGui::ColorConvertFloat4ToU32(dim_accent), 1.5f);
      }
 
      // Pinned badge — small tick in the top-left corner.
      bool is_pinned =
          user_settings_ &&
          user_settings_->prefs().sidebar_pinned.count(cat) > 0;
 
      // Always pass category color so inactive icons remain visible
      ImVec4 icon_color = cat_color;
      if (!category_enabled) {
        ImGui::BeginDisabled();
      }
      if (gui::TransparentIconButton(icon.c_str(), gui::IconSize::ActivityBar(),
                                     nullptr, is_selected, icon_color,
                                     "activity_bar", cat.c_str())) {
        if (category_enabled) {
          if (cat == active_category && panel_expanded) {
            window_manager_.ToggleSidebarExpanded();
          } else {
            window_manager_.SetActiveCategory(cat);
            window_manager_.SetSidebarExpanded(true);
            // Notify that a category was selected (dismisses dashboard)
            window_manager_.TriggerCategorySelected(cat);
          }
        }
      }
      if (!category_enabled) {
        ImGui::EndDisabled();
      }
 
      // Context menu + drag-drop anchor on the icon's last-drawn rect.
      DrawCategoryContextMenu(cat);
      HandleReorderDragAndDrop(cat);
 
      if (is_pinned) {
        ImVec2 pin_min = ImGui::GetItemRectMin();
        ImVec4 pin_color = cat_color;
        pin_color.w = 0.85f;
        ImGui::GetWindowDrawList()->AddCircleFilled(
            ImVec2(pin_min.x + 6.0f, pin_min.y + 6.0f), 2.5f,
            ImGui::ColorConvertFloat4ToU32(pin_color));
      }
 
      // Dirty-ROM dot badge on the currently selected category's icon.
      // We draw after the button so it paints on top.
      const bool rom_dirty = is_rom_dirty ? is_rom_dirty() : false;
      if (is_selected && category_enabled && rom_dirty) {
        ImVec2 last_min = ImGui::GetItemRectMin();
        ImVec2 last_max = ImGui::GetItemRectMax();
        ImVec2 dot_center(last_max.x - 7.0f, last_min.y + 7.0f);
        ImVec4 dot_color = gui::ConvertColorToImVec4(theme.warning);
        ImGui::GetWindowDrawList()->AddCircleFilled(
            dot_center, 3.5f, ImGui::ColorConvertFloat4ToU32(dot_color));
      }
 
      // Tooltip with status information
      if (ImGui::IsItemHovered(ImGuiHoveredFlags_AllowWhenDisabled)) {
        ImGui::BeginTooltip();
        ImGui::Text("%s %s", icon.c_str(), cat.c_str());
        if (!category_enabled) {
          gui::ColoredText("Open ROM required",
                           gui::ConvertColorToImVec4(theme.warning));
        } else if (has_active_editor) {
          gui::ColoredText(is_selected ? "Active editor"
                                       : "Editor open (click to focus)",
                           gui::ConvertColorToImVec4(theme.success));
        } else {
          gui::ColoredText("Click to view windows",
                           gui::GetTextSecondaryVec4());
        }
        if (is_pinned) {
          gui::ColoredText("Pinned (right-click to unpin)",
                           gui::GetTextSecondaryVec4());
        } else if (user_settings_) {
          gui::ColoredText("Right-click for options • drag to reorder",
                           gui::GetTextSecondaryVec4());
        }
        if (is_selected && rom_dirty) {
          gui::ColoredText("ROM has unsaved changes",
                           gui::ConvertColorToImVec4(theme.warning));
        }
        ImGui::EndTooltip();
      }
    }
  }
 
  // Draw "More Actions" button at the bottom
  ImGui::SetCursorPosY(viewport_height - 48.0f);
 
  if (gui::TransparentIconButton(ICON_MD_MORE_HORIZ, gui::IconSize::Large(),
                                 nullptr, false, ImVec4(0, 0, 0, 0),
                                 "activity_bar", "more_actions")) {
    ImGui::OpenPopup("ActivityBarMoreMenu");
  }
 
  if (ImGui::BeginPopup("ActivityBarMoreMenu")) {
    if (actions_registry_ && !actions_registry_->empty()) {
      actions_registry_->ForEach([](const MoreAction& action) {
        std::string label;
        if (action.icon != nullptr) {
          label = absl::StrFormat("%s %s", action.icon, action.label);
        } else {
          label = action.label;
        }
        bool enabled = !action.enabled_fn || action.enabled_fn();
        if (ImGui::MenuItem(label.c_str(), /*shortcut=*/nullptr,
                            /*selected=*/false, enabled)) {
          if (action.on_invoke) action.on_invoke();
        }
      });
    } else {
      ImGui::TextDisabled("No actions available");
    }
    ImGui::EndPopup();
  }
  // FixedPanel destructor handles End() + PopStyleVar/PopStyleColor
}
 
void ActivityBar::DrawSidePanel(size_t session_id, const std::string& category,
                                std::function<bool()> has_rom) {
  window_sidebar_.Draw(session_id, category, std::move(has_rom));
}
 
void ActivityBar::DrawWindowBrowser(size_t session_id, bool* p_open) {
  window_browser_.Draw(session_id, p_open);
}
 
}  // namespace editor
}  // namespace yaze