From 1d3742e14f09316a1d795527713eb8f9742f0ffb Mon Sep 17 00:00:00 2001
From: Joaquim <joaquim.org@gmail.com>
Date: Sun, 4 Apr 2021 03:08:51 +0100
Subject: Big UI and navigation Rewrite new navigation add some color to the
 apps redesign menus new settings menu new quick settings code clean up size
 reduction by converting navigation images to font and more...

---
 src/components/settings/Settings.cpp | 110 +++++++++++++++++++++++++++++++++--
 1 file changed, 104 insertions(+), 6 deletions(-)

(limited to 'src/components/settings/Settings.cpp')

diff --git a/src/components/settings/Settings.cpp b/src/components/settings/Settings.cpp
index 0c6cf610..454df577 100644
--- a/src/components/settings/Settings.cpp
+++ b/src/components/settings/Settings.cpp
@@ -1,16 +1,114 @@
 #include "Settings.h"
+#include <cstdlib>
+#include <cstring>
 
 using namespace Pinetime::Controllers;
 
+struct SettingsHeader {
+    uint8_t isActive; // 0xF1 = Block is active, 0xF0 = Block is inactive
+    uint16_t version; // Current version, to verify if the saved data is for the current Version
+};
+
+#define HEADER_SIZE sizeof(SettingsHeader)
+
+
+Settings::Settings( Pinetime::Drivers::SpiNorFlash &spiNorFlash ) : spiNorFlash{spiNorFlash} {}
 
-// TODO (team): 
-// Read and write the settings to Flash
-//
 void Settings::Init() {
-    // default Clock face
-    clockFace = 0;
 
-    clockType = ClockType::H24;
+    // Load default settings from Flash
+    LoadSettingsFromFlash();
+
+}
+
+void Settings::SaveSettings() {
+
+    // verify if is necessary to save
+    if ( settingsChanged ) {
+        SaveSettingsToFlash();
+    }
+    settingsChanged = false;
+}
+
+
+bool Settings::FindHeader() {
+    SettingsHeader settingsHeader;
+    uint8_t bufferHead[sizeof(settingsHeader)];
+
+    for (uint8_t block = 0; block < 10; block++) {
+    
+        spiNorFlash.Read( settingsBaseAddr + (block * 0x1000), bufferHead, sizeof(settingsHeader) );
+        std::memcpy(&settingsHeader, bufferHead, sizeof(settingsHeader));
+        if ( settingsHeader.isActive == 0xF1 && settingsHeader.version == settingsVersion ) {
+            settingsFlashBlock = block;
+            return true;
+        }
+    }
+    return false;
+}
+
+void Settings::ReadSettingsData() {
+    uint8_t bufferSettings[sizeof(settings)];
+    spiNorFlash.Read( settingsBaseAddr + (settingsFlashBlock * 0x1000) + HEADER_SIZE, bufferSettings, sizeof(settings) );
+    std::memcpy(&settings, bufferSettings, sizeof(settings));
+}
+
+void Settings::EraseBlock() {
 
+    spiNorFlash.SectorErase(settingsBaseAddr + (settingsFlashBlock * 0x1000));
 }
 
+void Settings::SetHeader( bool state ) {
+    SettingsHeader settingsHeader;
+    uint8_t bufferHead[sizeof(settingsHeader)];
+    settingsHeader.isActive = state ? 0xF1 : 0xF0;
+    settingsHeader.version = settingsVersion;
+
+    std::memcpy(bufferHead, &settingsHeader, sizeof(settingsHeader));
+    spiNorFlash.Write(settingsBaseAddr + (settingsFlashBlock * 0x1000), bufferHead, sizeof(settingsHeader));
+
+}
+
+void Settings::SaveSettingsData() {
+    uint8_t bufferSettings[sizeof(settings)];
+    std::memcpy(bufferSettings, &settings, sizeof(settings));
+    spiNorFlash.Write(settingsBaseAddr + (settingsFlashBlock * 0x1000) + HEADER_SIZE, bufferSettings, sizeof(settings));
+}
+
+void Settings::LoadSettingsFromFlash() {
+
+    if ( settingsFlashBlock == 99 ) {
+        // Find current Block, if can't find use default settings and set block to 0 ans save !
+        if ( FindHeader() ) {
+            ReadSettingsData();
+        } else {
+            SaveSettingsToFlash();
+        }
+    } else {
+        // Read Settings from flash...
+        // never used :)
+        ReadSettingsData();
+    }
+    
+}
+
+void Settings::SaveSettingsToFlash() {
+    
+    // calculate where to save...
+    // mark current to inactive
+    // erase the new location and save
+    // set settingsFlashBlock
+
+    // if first time hever, only saves to block 0 and set settingsFlashBlock
+
+    if ( settingsFlashBlock != 99 ) {
+        SetHeader( false );
+    }
+
+    settingsFlashBlock++;
+    if ( settingsFlashBlock > 9 ) settingsFlashBlock = 0;
+
+    EraseBlock();
+    SetHeader( true );
+    SaveSettingsData();
+}
-- 
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