1 files changed, 160 insertions, 0 deletions
diff --git a/src/detection/battery/battery_android.c b/src/detection/battery/battery_android.c
new file mode 100644
index 0000000..d76c4ad
--- /dev/null
+++ b/src/detection/battery/battery_android.c
@@ -0,0 +1,160 @@
+#include "fastfetch.h"
+#include "battery.h"
+#include "common/strutil.h"
+#include "common/processing.h"
+#include "common/properties.h"
+
+#define FF_TERMUX_API_PATH FASTFETCH_TARGET_DIR_ROOT "/libexec/termux-api"
+#define FF_TERMUX_API_PARAM "BatteryStatus"
+
+static inline void wrapYyjsonFree(yyjson_doc** doc) {
+    assert(doc);
+    if (*doc) {
+        yyjson_doc_free(*doc);
+    }
+}
+
+static const char* parseTermuxApi(FFBatteryOptions* options, FFlist* results) {
+    FF_STRBUF_AUTO_DESTROY buffer = ffStrbufCreate();
+
+    if (ffProcessAppendStdOut(&buffer, (char* const[]) { FF_TERMUX_API_PATH, FF_TERMUX_API_PARAM, NULL })) {
+        return "Starting `" FF_TERMUX_API_PATH " " FF_TERMUX_API_PARAM "` failed";
+    }
+
+    yyjson_doc* FF_A_CLEANUP(wrapYyjsonFree) doc = yyjson_read_opts(buffer.chars, buffer.length, 0, NULL, NULL);
+    if (!doc) {
+        return "Failed to parse battery info";
+    }
+
+    yyjson_val* root = yyjson_doc_get_root(doc);
+    if (!yyjson_is_obj(root)) {
+        return "Battery info result is not a JSON object";
+    }
+
+    FFBatteryResult* battery = FF_LIST_ADD(FFBatteryResult, *results);
+    battery->temperature = FF_BATTERY_TEMP_UNSET;
+    battery->cycleCount = 0;
+    battery->timeRemaining = -1;
+    battery->status = FF_BATTERY_STATUS_NONE;
+    ffStrbufInit(&battery->manufacturer);
+    ffStrbufInit(&battery->modelName);
+    ffStrbufInit(&battery->technology);
+    ffStrbufInit(&battery->serial);
+    ffStrbufInit(&battery->manufactureDate);
+
+    battery->capacity = yyjson_get_num(yyjson_obj_get(root, "percentage"));
+    const char* acStatus = yyjson_get_str(yyjson_obj_get(root, "plugged"));
+    if (acStatus) {
+        if (ffStrEquals(acStatus, "PLUGGED_AC")) {
+            battery->status |= FF_BATTERY_STATUS_AC_CONNECTED;
+        } else if (ffStrEquals(acStatus, "PLUGGED_USB")) {
+            battery->status |= FF_BATTERY_STATUS_USB_CONNECTED;
+        } else if (ffStrEquals(acStatus, "PLUGGED_WIRELESS")) {
+            battery->status |= FF_BATTERY_STATUS_WIRELESS_CONNECTED;
+        }
+    }
+    const char* status = yyjson_get_str(yyjson_obj_get(root, "status"));
+    if (status) {
+        if (ffStrEquals(status, "CHARGING")) {
+            battery->status |= FF_BATTERY_STATUS_CHARGING;
+        } else if (ffStrEquals(status, "DISCHARGING")) {
+            battery->status |= FF_BATTERY_STATUS_DISCHARGING;
+        }
+    }
+
+    if (options->temp) {
+        battery->temperature = yyjson_get_num(yyjson_obj_get(root, "temperature"));
+    }
+
+    return NULL;
+}
+
+static const char* parseDumpsys(FFBatteryOptions* options, FFlist* results) {
+    FF_STRBUF_AUTO_DESTROY buf = ffStrbufCreate();
+    if (ffProcessAppendStdOut(&buf, (char*[]) {
+                                        "/system/bin/dumpsys",
+                                        "battery",
+                                        NULL,
+                                    }) != NULL ||
+        buf.length == 0) {
+        return "Executing `/system/bin/dumpsys battery` failed"; // Only works in `adb shell`, or when rooted
+    }
+
+    if (!ffStrbufStartsWithS(&buf, "Current Battery Service state:\n")) {
+        return "Invalid `/system/bin/dumpsys battery` result";
+    }
+
+    const char* start = buf.chars + strlen("Current Battery Service state:\n");
+
+    FF_STRBUF_AUTO_DESTROY temp = ffStrbufCreate();
+    if (!ffParsePropLines(start, "present: ", &temp) || !ffStrbufEqualS(&temp, "true")) {
+        return NULL;
+    }
+    ffStrbufClear(&temp);
+
+    FFBatteryResult* battery = FF_LIST_ADD(FFBatteryResult, *results);
+    battery->temperature = FF_BATTERY_TEMP_UNSET;
+    battery->cycleCount = 0;
+    battery->timeRemaining = -1;
+    battery->capacity = 0;
+    battery->status = FF_BATTERY_STATUS_NONE;
+    ffStrbufInit(&battery->manufacturer);
+    ffStrbufInit(&battery->modelName);
+    ffStrbufInit(&battery->technology);
+    ffStrbufInit(&battery->serial);
+    ffStrbufInit(&battery->manufactureDate);
+
+    if (ffParsePropLines(start, "AC powered: ", &temp) && ffStrbufEqualS(&temp, "true")) {
+        battery->status |= FF_BATTERY_STATUS_AC_CONNECTED;
+    }
+    ffStrbufClear(&temp);
+
+    if (ffParsePropLines(start, "USB powered: ", &temp) && ffStrbufEqualS(&temp, "true")) {
+        battery->status |= FF_BATTERY_STATUS_USB_CONNECTED;
+    }
+    ffStrbufClear(&temp);
+
+    if (ffParsePropLines(start, "Wireless powered: ", &temp) && ffStrbufEqualS(&temp, "true")) {
+        battery->status |= FF_BATTERY_STATUS_WIRELESS_CONNECTED;
+    }
+    ffStrbufClear(&temp);
+
+    {
+        double level = 0, scale = 0;
+        if (ffParsePropLines(start, "level: ", &temp)) {
+            level = ffStrbufToDouble(&temp, -DBL_MAX);
+        }
+        ffStrbufClear(&temp);
+
+        if (ffParsePropLines(start, "scale: ", &temp)) {
+            scale = ffStrbufToDouble(&temp, -DBL_MAX);
+        }
+        ffStrbufClear(&temp);
+
+        if (level > 0 && scale > 0) {
+            battery->capacity = level * 100 / scale;
+        }
+    }
+
+    if (options->temp) {
+        if (ffParsePropLines(start, "temperature: ", &temp)) {
+            battery->temperature = ffStrbufToDouble(&temp, FF_BATTERY_TEMP_UNSET);
+            if (battery->temperature != FF_BATTERY_TEMP_UNSET) {
+                battery->temperature /= 10.0; // Android returns temperature in tenths of a degree
+            }
+        }
+        ffStrbufClear(&temp);
+    }
+
+    ffParsePropLines(start, "technology: ", &battery->technology);
+
+    return NULL;
+}
+
+const char* ffDetectBattery(FFBatteryOptions* options, FFlist* results) {
+    const char* error = parseTermuxApi(options, results);
+    if (error && parseDumpsys(options, results) == NULL) {
+        return NULL;
+    }
+    return error;
+}