Add a basic database reindex screen

src/database/database.cpp

@@ -136,14 +136,18 @@ auto Database::Update() -> std::future<void> {
 
     // Stage 1: verify all existing tracks are still valid.
     ESP_LOGI(kTag, "verifying existing tracks");
-    events::Ui().Dispatch(event::UpdateProgress{
-        .stage = event::UpdateProgress::Stage::kVerifyingExistingTracks,
-    });
     {
+      uint64_t num_processed = 0;
       std::unique_ptr<leveldb::Iterator> it{db_->NewIterator(read_options)};
       OwningSlice prefix = EncodeDataPrefix();
       it->Seek(prefix.slice);
       while (it->Valid() && it->key().starts_with(prefix.slice)) {
+        num_processed++;
+        events::Ui().Dispatch(event::UpdateProgress{
+            .stage = event::UpdateProgress::Stage::kVerifyingExistingTracks,
+            .val = num_processed,
+        });
+
         std::shared_ptr<TrackData> track = ParseDataValue(it->value());
         if (!track) {
           // The value was malformed. Drop this record.
@@ -195,10 +199,14 @@ auto Database::Update() -> std::future<void> {
 
     // Stage 2: search for newly added files.
     ESP_LOGI(kTag, "scanning for new tracks");
-    events::Ui().Dispatch(event::UpdateProgress{
-        .stage = event::UpdateProgress::Stage::kScanningForNewTracks,
-    });
+    uint64_t num_processed = 0;
     file_gatherer_.FindFiles("", [&](const std::pmr::string& path) {
+      num_processed++;
+      events::Ui().Dispatch(event::UpdateProgress{
+          .stage = event::UpdateProgress::Stage::kScanningForNewTracks,
+          .val = num_processed,
+      });
+
       std::shared_ptr<TrackTags> tags = tag_parser_.ReadAndParseTags(path);
       if (!tags || tags->encoding() == Container::kUnsupported) {
         // No parseable tags; skip this fiile.

src/database/file_gatherer.cpp

@@ -14,6 +14,7 @@
 #include "ff.h"
 
 #include "memory_resource.hpp"
+#include "spi.hpp"
 
 namespace database {
 
@@ -30,7 +31,11 @@ auto FileGathererImpl::FindFiles(
     const TCHAR* next_path = static_cast<const TCHAR*>(next_path_str.c_str());
 
     FF_DIR dir;
-    FRESULT res = f_opendir(&dir, next_path);
+    FRESULT res;
+    {
+      auto lock = drivers::acquire_spi();
+      res = f_opendir(&dir, next_path);
+    }
     if (res != FR_OK) {
       // TODO: log.
       continue;
@@ -38,7 +43,10 @@ auto FileGathererImpl::FindFiles(
 
     for (;;) {
       FILINFO info;
-      res = f_readdir(&dir, &info);
+      {
+        auto lock = drivers::acquire_spi();
+        res = f_readdir(&dir, &info);
+      }
       if (res != FR_OK || info.fname[0] == 0) {
         // No more files in the directory.
         break;

src/database/include/db_events.hpp

@@ -6,6 +6,7 @@
 
 #pragma once
 
+#include <stdint.h>
 #include "tinyfsm.hpp"
 
 namespace database {
@@ -21,6 +22,7 @@ struct UpdateProgress : tinyfsm::Event {
     kScanningForNewTracks,
   };
   Stage stage;
+  uint64_t val;
 };
 
 }  // namespace event

src/ui/include/modal_progress.hpp

@@ -19,10 +19,15 @@ namespace modals {
 
 class Progress : public Modal {
  public:
-  Progress(Screen*, std::pmr::string title);
+  Progress(Screen*, std::pmr::string title, std::pmr::string subtitle = "");
+
+  void title(const std::pmr::string&);
+  void subtitle(const std::pmr::string&);
 
  private:
   lv_obj_t* container_;
+  lv_obj_t* title_;
+  lv_obj_t* subtitle_;
 };
 
 }  // namespace modals

src/ui/include/ui_events.hpp

@@ -37,6 +37,7 @@ struct IndexSelected : tinyfsm::Event {
 };
 
 struct ControlSchemeChanged : tinyfsm::Event {};
+struct ReindexDatabase : tinyfsm::Event {};
 
 struct BackPressed : tinyfsm::Event {};
 struct ShowNowPlaying : tinyfsm::Event {};

src/ui/include/ui_fsm.hpp

@@ -14,6 +14,7 @@
 #include "audio_events.hpp"
 #include "battery.hpp"
 #include "bindey/property.h"
+#include "db_events.hpp"
 #include "gpios.hpp"
 #include "lvgl_task.hpp"
 #include "model_playback.hpp"
@@ -75,6 +76,11 @@ class UiState : public tinyfsm::Fsm<UiState> {
   }
   virtual void react(const internal::OnboardingNavigate&) {}
   void react(const internal::ControlSchemeChanged&);
+  virtual void react(const internal::ReindexDatabase&){};
+
+  virtual void react(const database::event::UpdateStarted&){};
+  virtual void react(const database::event::UpdateProgress&){};
+  virtual void react(const database::event::UpdateFinished&){};
 
   virtual void react(const system_fsm::DisplayReady&) {}
   virtual void react(const system_fsm::BootComplete&) {}
@@ -130,6 +136,7 @@ class Browse : public UiState {
 
   void react(const internal::ShowNowPlaying&) override;
   void react(const internal::ShowSettingsPage&) override;
+  void react(const internal::ReindexDatabase&) override;
 
   void react(const system_fsm::StorageMounted&) override;
   void react(const system_fsm::BluetoothDevicesChanged&) override;
@@ -150,6 +157,18 @@ class Playing : public UiState {
   using UiState::react;
 };
 
+class Indexing : public UiState {
+ public:
+  void entry() override;
+  void exit() override;
+
+  void react(const database::event::UpdateStarted&) override;
+  void react(const database::event::UpdateProgress&) override;
+  void react(const database::event::UpdateFinished&) override;
+
+  using UiState::react;
+};
+
 class FatalError : public UiState {};
 
 }  // namespace states

src/ui/modal_progress.cpp

@@ -28,18 +28,39 @@
 namespace ui {
 namespace modals {
 
-Progress::Progress(Screen* host, std::pmr::string title_text) : Modal(host) {
+Progress::Progress(Screen* host,
+                   std::pmr::string title_text,
+                   std::pmr::string subtitle_text)
+    : Modal(host) {
   lv_obj_set_layout(root_, LV_LAYOUT_FLEX);
   lv_obj_set_flex_flow(root_, LV_FLEX_FLOW_COLUMN);
   lv_obj_set_flex_align(root_, LV_FLEX_ALIGN_SPACE_EVENLY, LV_FLEX_ALIGN_CENTER,
                         LV_FLEX_ALIGN_CENTER);
 
-  lv_obj_t* title = lv_label_create(root_);
-  lv_label_set_text(title, title_text.c_str());
-  lv_obj_set_size(title, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
+  title_ = lv_label_create(root_);
+  lv_obj_set_size(title_, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
+
+  subtitle_ = lv_label_create(root_);
+  lv_obj_set_size(subtitle_, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
 
   lv_obj_t* spinner = lv_spinner_create(root_, 3000, 45);
   lv_obj_set_size(spinner, 16, 16);
+
+  title(title_text);
+  subtitle(subtitle_text);
+}
+
+void Progress::title(const std::pmr::string& s) {
+  lv_label_set_text(title_, s.c_str());
+}
+
+void Progress::subtitle(const std::pmr::string& s) {
+  if (s.empty()) {
+    lv_obj_add_flag(subtitle_, LV_OBJ_FLAG_HIDDEN);
+  } else {
+    lv_obj_clear_flag(subtitle_, LV_OBJ_FLAG_HIDDEN);
+    lv_label_set_text(subtitle_, s.c_str());
+  }
 }
 
 }  // namespace modals

src/ui/screen_settings.cpp

@@ -469,8 +469,12 @@ Storage::Storage(models::TopBar& bar) : MenuScreen(bar, "Storage") {
 
   lv_obj_t* reset_btn = lv_btn_create(content_);
   lv_obj_t* reset_label = lv_label_create(reset_btn);
-  lv_label_set_text(reset_label, "Reset Database");
+  lv_label_set_text(reset_label, "Update Database");
   lv_group_add_obj(group_, reset_btn);
+
+  lv_bind(reset_btn, LV_EVENT_CLICKED, [&](lv_obj_t*) {
+    events::Ui().Dispatch(internal::ReindexDatabase{});
+  });
 }
 
 FirmwareUpdate::FirmwareUpdate(models::TopBar& bar)

src/ui/ui_fsm.cpp

@@ -21,6 +21,7 @@
 #include "lvgl_task.hpp"
 #include "modal_add_to_queue.hpp"
 #include "modal_confirm.hpp"
+#include "modal_progress.hpp"
 #include "model_playback.hpp"
 #include "nvs.hpp"
 #include "relative_wheel.hpp"
@@ -328,6 +329,10 @@ void Browse::react(const system_fsm::BluetoothDevicesChanged&) {
   }
 }
 
+void Browse::react(const internal::ReindexDatabase& ev) {
+  transit<Indexing>();
+}
+
 static std::shared_ptr<screens::Playing> sPlayingScreen;
 
 void Playing::entry() {
@@ -347,6 +352,47 @@ void Playing::react(const internal::BackPressed& ev) {
   transit<Browse>();
 }
 
+static std::shared_ptr<modals::Progress> sIndexProgress;
+
+void Indexing::entry() {
+  sIndexProgress.reset(new modals::Progress(sCurrentScreen.get(), "Indexing",
+                                            "Preparing database"));
+  sCurrentModal = sIndexProgress;
+  auto db = sServices->database().lock();
+  if (!db) {
+    // TODO: Hmm.
+    return;
+  }
+  db->Update();
+}
+
+void Indexing::exit() {
+  sCurrentModal.reset();
+  sIndexProgress.reset();
+}
+
+void Indexing::react(const database::event::UpdateStarted&) {}
+
+void Indexing::react(const database::event::UpdateProgress& ev) {
+  std::ostringstream str;
+  switch (ev.stage) {
+    case database::event::UpdateProgress::Stage::kVerifyingExistingTracks:
+      sIndexProgress->title("Verifying");
+      str << "Tracks checked: " << ev.val;
+      sIndexProgress->subtitle(str.str().c_str());
+      break;
+    case database::event::UpdateProgress::Stage::kScanningForNewTracks:
+      sIndexProgress->title("Scanning");
+      str << "Files checked: " << ev.val;
+      sIndexProgress->subtitle(str.str().c_str());
+      break;
+  }
+}
+
+void Indexing::react(const database::event::UpdateFinished&) {
+  transit<Browse>();
+}
+
 }  // namespace states
 }  // namespace ui