From a1aa0544b318e0014eec39ceab9451f5239a4dd7 Mon Sep 17 00:00:00 2001
From: Mark Qvist <mark@unsigned.io>
Date: Thu, 26 Oct 2023 20:38:19 +0200
Subject: [PATCH] Added map cache control

---
 sbapp/main.py          | 41 ++++++++++++++++++++++++++++++++++++++++-
 sbapp/sideband/core.py | 13 +++++++++++++
 sbapp/ui/layouts.py    | 14 +++++++++++++-
 3 files changed, 66 insertions(+), 2 deletions(-)

diff --git a/sbapp/main.py b/sbapp/main.py
index 47154c8..19fbecd 100644
--- a/sbapp/main.py
+++ b/sbapp/main.py
@@ -783,7 +783,10 @@ class SidebandApp(MDApp):
                 self.map_action(self)
         
         if len(modifiers) > 0 and modifiers[0] == 'ctrl' and (text == "p"):
-            self.settings_action(self)
+            if self.root.ids.screen_manager.current == "map_screen":
+                self.map_settings_action()
+            else:
+                self.settings_action(self)
         
         if len(modifiers) > 0 and modifiers[0] == 'ctrl' and (text == "t"):
             if self.root.ids.screen_manager.current == "messages_screen":
@@ -3517,6 +3520,42 @@ class SidebandApp(MDApp):
         self.root.ids.nav_drawer.set_state("closed")
         self.sideband.setstate("app.displaying", self.root.ids.screen_manager.current)
 
+        def update_cache_size(dt):
+            size = self.sideband.get_map_cache_size()
+            size_str = RNS.prettysize(size)
+            self.map_settings_screen.ids.map_cache_button.text = f"Clear {size_str} map cache"
+            if size > 0.0:
+                self.map_settings_screen.ids.map_cache_button.disabled = False
+            else:
+                self.map_settings_screen.ids.map_cache_button.disabled = True
+                self.map_settings_screen.ids.map_cache_button.text = f"No data in map cache"
+
+        Clock.schedule_once(update_cache_size, 0.35)
+
+    def map_clear_cache(self, sender=None):
+        yes_button = MDRectangleFlatButton(text="Yes",font_size=dp(18), theme_text_color="Custom", line_color=self.color_reject, text_color=self.color_reject)
+        no_button = MDRectangleFlatButton(text="No",font_size=dp(18))
+        dialog = MDDialog(
+            title="Clear map cache?",
+            buttons=[ yes_button, no_button ],
+            # elevation=0,
+        )
+        def dl_yes(s):
+            dialog.dismiss()
+            self.sideband.clear_map_cache()
+
+            def cb(dt):
+                self.map_settings_action()
+            self.map_settings_screen.ids.map_cache_button.disabled = True
+            Clock.schedule_once(cb, 1.2)
+
+        def dl_no(s):
+            dialog.dismiss()
+
+        yes_button.bind(on_release=dl_yes)
+        no_button.bind(on_release=dl_no)
+        dialog.open()
+
     def close_location_error_dialog(self, sender=None):
         if hasattr(self, "location_error_dialog") and self.location_error_dialog != None:
             self.location_error_dialog.dismiss()
diff --git a/sbapp/sideband/core.py b/sbapp/sideband/core.py
index 67a4a8f..2e2f5e8 100644
--- a/sbapp/sideband/core.py
+++ b/sbapp/sideband/core.py
@@ -348,6 +348,19 @@ class SidebandCore():
 
         self.__save_config()
 
+    def clear_map_cache(self):
+        for entry in os.scandir(self.map_cache):
+            os.unlink(entry.path)
+            
+    def get_map_cache_size(self):
+        total = 0
+        for entry in os.scandir(self.map_cache):
+            if entry.is_dir(follow_symlinks=False):
+                pass
+            else:
+                total += entry.stat(follow_symlinks=False).st_size
+        return total
+
     def should_persist_data(self):
         if self.reticulum != None:
             self.reticulum._should_persist_data()
diff --git a/sbapp/ui/layouts.py b/sbapp/ui/layouts.py
index eac34eb..9f83b90 100644
--- a/sbapp/ui/layouts.py
+++ b/sbapp/ui/layouts.py
@@ -946,11 +946,12 @@ MDScreen:
                 MDBoxLayout:
                     orientation: "vertical"
                     size_hint_y: None
+                    spacing: dp(24)
                     height: self.minimum_height
                     padding: [0, dp(24), 0, 0]
 
                     MDRectangleFlatIconButton:
-                        id: telemetry_icons_button
+                        id: map_select_button
                         icon: "list-box-outline"
                         text: "Select MBTiles Map"
                         padding: [dp(0), dp(14), dp(0), dp(14)]
@@ -959,6 +960,17 @@ MDScreen:
                         size_hint: [1.0, None]
                         on_release: root.app.map_select_file_action(self)
                         disabled: False
+
+                    MDRectangleFlatIconButton:
+                        id: map_cache_button
+                        icon: "map-clock-outline"
+                        text: "Clear map cache"
+                        padding: [dp(0), dp(14), dp(0), dp(14)]
+                        icon_size: dp(24)
+                        font_size: dp(16)
+                        size_hint: [1.0, None]
+                        on_release: root.app.map_clear_cache(self)
+                        disabled: False
 """