3 files changed, 126 insertions, 0 deletions
diff --git a/src/modules/uptime/option.h b/src/modules/uptime/option.h
new file mode 100644
index 0000000..34be61a
--- /dev/null
+++ b/src/modules/uptime/option.h
@@ -0,0 +1,9 @@
+#pragma once
+
+#include "common/option.h"
+
+typedef struct FFUptimeOptions {
+    FFModuleArgs moduleArgs;
+} FFUptimeOptions;
+
+static_assert(sizeof(FFUptimeOptions) <= FF_OPTION_MAX_SIZE, "FFUptimeOptions size exceeds maximum allowed size");
diff --git a/src/modules/uptime/uptime.c b/src/modules/uptime/uptime.c
new file mode 100644
index 0000000..e096bfc
--- /dev/null
+++ b/src/modules/uptime/uptime.c
@@ -0,0 +1,106 @@
+#include "common/duration.h"
+#include "common/printing.h"
+#include "common/jsonconfig.h"
+#include "common/time.h"
+#include "common/strutil.h"
+#include "detection/uptime/uptime.h"
+#include "modules/uptime/uptime.h"
+
+bool ffPrintUptime(FFUptimeOptions* options) {
+    FFUptimeResult result = {};
+
+    const char* error = ffDetectUptime(&result);
+
+    if (error) {
+        ffPrintError(FF_UPTIME_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "%s", error);
+        return false;
+    }
+
+    uint64_t uptime = result.uptime;
+    FF_STRBUF_AUTO_DESTROY buffer = ffStrbufCreate();
+    ffDurationAppendNum((uptime + 500) / 1000, &buffer);
+
+    if (options->moduleArgs.outputFormat.length == 0) {
+        ffPrintLogoAndKey(FF_UPTIME_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT);
+        ffStrbufPutTo(&buffer, stdout);
+    } else {
+        uint32_t milliseconds = (uint32_t) (uptime % 1000);
+        uptime /= 1000;
+        uint32_t seconds = (uint32_t) (uptime % 60);
+        uptime /= 60;
+        uint32_t minutes = (uint32_t) (uptime % 60);
+        uptime /= 60;
+        uint32_t hours = (uint32_t) (uptime % 24);
+        uptime /= 24;
+        uint32_t days = (uint32_t) uptime;
+
+        FFTimeGetAgeResult age = ffTimeGetAge(result.bootTime, ffTimeGetNow());
+
+        FF_PRINT_FORMAT_CHECKED(FF_UPTIME_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, ((FFformatarg[]) { FF_ARG(days, "days"), FF_ARG(hours, "hours"), FF_ARG(minutes, "minutes"), FF_ARG(seconds, "seconds"), FF_ARG(milliseconds, "milliseconds"), { FF_ARG_TYPE_STRING, ffTimeToShortStr(result.bootTime), "boot-time" }, FF_ARG(age.years, "years"), FF_ARG(age.daysOfYear, "days-of-year"), FF_ARG(age.yearsFraction, "years-fraction"), FF_ARG(buffer, "formatted") }));
+    }
+
+    return true;
+}
+
+void ffParseUptimeJsonObject(FFUptimeOptions* options, yyjson_val* module) {
+    yyjson_val *key, *val;
+    size_t idx, max;
+    yyjson_obj_foreach (module, idx, max, key, val) {
+        if (ffJsonConfigParseModuleArgs(key, val, &options->moduleArgs)) {
+            continue;
+        }
+
+        ffPrintError(FF_UPTIME_MODULE_NAME, 0, &options->moduleArgs, FF_PRINT_TYPE_DEFAULT, "Unknown JSON key %s", unsafe_yyjson_get_str(key));
+    }
+}
+
+void ffGenerateUptimeJsonConfig(FFUptimeOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module) {
+    ffJsonConfigGenerateModuleArgsConfig(doc, module, &options->moduleArgs);
+}
+
+bool ffGenerateUptimeJsonResult(FF_A_UNUSED FFUptimeOptions* options, yyjson_mut_doc* doc, yyjson_mut_val* module) {
+    FFUptimeResult result;
+    const char* error = ffDetectUptime(&result);
+
+    if (error) {
+        yyjson_mut_obj_add_str(doc, module, "error", error);
+        return false;
+    }
+
+    yyjson_mut_val* obj = yyjson_mut_obj_add_obj(doc, module, "result");
+    yyjson_mut_obj_add_uint(doc, obj, "uptime", result.uptime);
+    yyjson_mut_obj_add_strcpy(doc, obj, "bootTime", ffTimeToFullStr(result.bootTime));
+
+    return true;
+}
+
+void ffInitUptimeOptions(FFUptimeOptions* options) {
+    ffOptionInitModuleArg(&options->moduleArgs, "");
+}
+
+void ffDestroyUptimeOptions(FFUptimeOptions* options) {
+    ffOptionDestroyModuleArg(&options->moduleArgs);
+}
+
+FFModuleBaseInfo ffUptimeModuleInfo = {
+    .name = FF_UPTIME_MODULE_NAME,
+    .description = "Print how long the system has been running",
+    .initOptions = (void*) ffInitUptimeOptions,
+    .destroyOptions = (void*) ffDestroyUptimeOptions,
+    .parseJsonObject = (void*) ffParseUptimeJsonObject,
+    .printModule = (void*) ffPrintUptime,
+    .generateJsonResult = (void*) ffGenerateUptimeJsonResult,
+    .generateJsonConfig = (void*) ffGenerateUptimeJsonConfig,
+    .formatArgs = FF_FORMAT_ARG_LIST(((FFModuleFormatArg[]) {
+        { "Days after boot", "days" },
+        { "Hours after boot", "hours" },
+        { "Minutes after boot", "minutes" },
+        { "Seconds after boot", "seconds" },
+        { "Milliseconds after boot", "milliseconds" },
+        { "Boot time in local timezone", "boot-time" },
+        { "Years integer after boot", "years" },
+        { "Days of year after boot", "days-of-year" },
+        { "Years fraction after boot", "years-fraction" },
+        { "Formatted uptime", "formatted" },
+    }))
+};
diff --git a/src/modules/uptime/uptime.h b/src/modules/uptime/uptime.h
new file mode 100644
index 0000000..dec5f95
--- /dev/null
+++ b/src/modules/uptime/uptime.h
@@ -0,0 +1,11 @@
+#pragma once
+
+#include "option.h"
+
+#define FF_UPTIME_MODULE_NAME "Uptime"
+
+bool ffPrintUptime(FFUptimeOptions* options);
+void ffInitUptimeOptions(FFUptimeOptions* options);
+void ffDestroyUptimeOptions(FFUptimeOptions* options);
+
+extern FFModuleBaseInfo ffUptimeModuleInfo;