From 8cfaf468e9c5ae48cf29b3a834db3b8445aad5ce Mon Sep 17 00:00:00 2001
From: Sergey Savelyev <sergeysav.nn@gmail.com>
Date: Thu, 25 Dec 2025 12:44:26 -0500
Subject: [PATCH] add boolean type

---
 examples/simple_producer/src/main.rs       |  4 +++
 frontend/src/components/BooleanText.vue    | 29 ++++++++++++++++++
 frontend/src/components/NumericText.vue    | 21 ++++++++++---
 frontend/src/components/TelemetryLine.vue  | 35 +++++++++++++++++-----
 frontend/src/components/TelemetryValue.vue |  1 +
 frontend/src/components/ValueLabel.vue     | 12 ++++++--
 frontend/src/graph/line.ts                 |  1 +
 server/proto/core.proto                    |  2 ++
 server/src/grpc.rs                         |  2 ++
 server/src/serialization/primitives.rs     | 13 ++++++++
 server/src/telemetry/data_value.rs         |  1 +
 server/src/telemetry/history.rs            |  6 ++++
 12 files changed, 113 insertions(+), 14 deletions(-)
 create mode 100644 frontend/src/components/BooleanText.vue

diff --git a/examples/simple_producer/src/main.rs b/examples/simple_producer/src/main.rs
index 380aeb5..8aaecb7 100644
--- a/examples/simple_producer/src/main.rs
+++ b/examples/simple_producer/src/main.rs
@@ -170,6 +170,9 @@ async fn main() -> Result<(), Box<dyn Error>> {
     let cos_tlm_handle = tlm
         .register("simple_producer/cos".into(), TelemetryDataType::Float64)
         .await?;
+    let bool_tlm_handle = tlm
+        .register("simple_producer/bool".into(), TelemetryDataType::Boolean)
+        .await?;
 
     let sin2_tlm_handle = tlm
         .register("simple_producer/sin2".into(), TelemetryDataType::Float32)
@@ -239,6 +242,7 @@ async fn main() -> Result<(), Box<dyn Error>> {
             Value::Float64((f64::TAU() * (index as f64) / (1000.0_f64)).cos()),
             publish_time,
         ));
+        tasks.push(bool_tlm_handle.publish(Value::Boolean(index % 1000 > 500), publish_time));
         tasks.push(sin2_tlm_handle.publish(
             Value::Float32((f32::TAU() * (index as f32) / (500.0_f32)).sin()),
             publish_time,
diff --git a/frontend/src/components/BooleanText.vue b/frontend/src/components/BooleanText.vue
new file mode 100644
index 0000000..dc0cda9
--- /dev/null
+++ b/frontend/src/components/BooleanText.vue
@@ -0,0 +1,29 @@
+<script setup lang="ts">
+import { computed, watch } from 'vue';
+
+const props = defineProps<{
+    value: boolean;
+}>();
+const emit = defineEmits<{
+    (e: 'update', value: string): void;
+}>();
+
+const display_value = computed(() => {
+    return props.value ? 'true' : 'false';
+});
+watch(
+    [display_value],
+    ([display_str]) => {
+        emit('update', display_str);
+    },
+    {
+        immediate: true,
+    },
+);
+</script>
+
+<template>
+    {{ display_value }}
+</template>
+
+<style scoped lang="scss"></style>
diff --git a/frontend/src/components/NumericText.vue b/frontend/src/components/NumericText.vue
index 9c6e2f2..82e1f1e 100644
--- a/frontend/src/components/NumericText.vue
+++ b/frontend/src/components/NumericText.vue
@@ -6,6 +6,7 @@ const props = defineProps<{
     value: number;
     max_width: number;
     copyable?: boolean;
+    include_span?: boolean;
 }>();
 const emit = defineEmits<{
     (e: 'update', value: string): void;
@@ -14,6 +15,9 @@ const emit = defineEmits<{
 const copyable = computed(() => {
     return props.copyable || false;
 });
+const include_span = computed(() => {
+    return props.include_span || false;
+});
 
 const display_value = computed(() => {
     if (props.value == 0) {
@@ -61,9 +65,15 @@ const display_value = computed(() => {
     }
     return precision;
 });
-watch([display_value], ([display_str]) => {
-    emit('update', display_str);
-});
+watch(
+    [display_value],
+    ([display_str]) => {
+        emit('update', display_str);
+    },
+    {
+        immediate: true,
+    },
+);
 </script>
 
 <template>
@@ -73,11 +83,14 @@ watch([display_value], ([display_str]) => {
             v-bind="$attrs"
         ></CopyableDynamicSpan>
     </template>
-    <template v-else>
+    <template v-else-if="include_span">
         <span v-bind="$attrs">
             {{ display_value }}
         </span>
     </template>
+    <template v-else>
+        {{ display_value }}
+    </template>
 </template>
 
 <style scoped lang="scss"></style>
diff --git a/frontend/src/components/TelemetryLine.vue b/frontend/src/components/TelemetryLine.vue
index 9207650..8c7fe01 100644
--- a/frontend/src/components/TelemetryLine.vue
+++ b/frontend/src/components/TelemetryLine.vue
@@ -96,12 +96,21 @@ watch([value], ([val]) => {
     if (val) {
         const val_t = Date.parse(val.timestamp);
         if (val_t >= min_x) {
-            const item_val = val.value[
-                telemetry_data.value!.data_type
-            ] as number;
+            const raw_item_val = val.value[telemetry_data.value!.data_type];
+            let item_val = 0;
+            if (
+                ['Float32', 'Float64'].some(
+                    (e) => e == telemetry_data.value!.data_type,
+                )
+            ) {
+                item_val = raw_item_val as number;
+            } else if (telemetry_data.value!.data_type == 'Boolean') {
+                item_val = (raw_item_val as boolean) ? 1 : 0;
+            }
             const new_item = {
                 x: val_t,
                 y: item_val,
+                value: raw_item_val,
             } as Point;
             memo.value.insert(new_item, data_min_sep.value);
             if (item_val < min.value) {
@@ -131,10 +140,21 @@ watch(
                 const response = (await res.json()) as TelemetryDataItem[];
                 for (const data_item of response) {
                     const val_t = Date.parse(data_item.timestamp);
-                    const item_val = data_item.value[type] as number;
+                    const raw_item_val = data_item.value[type];
+                    let item_val = 0;
+                    if (
+                        ['Float32', 'Float64'].some(
+                            (e) => e == telemetry_data.value!.data_type,
+                        )
+                    ) {
+                        item_val = raw_item_val as number;
+                    } else if (type == 'Boolean') {
+                        item_val = (raw_item_val as boolean) ? 1 : 0;
+                    }
                     const new_item = {
                         x: val_t,
                         y: item_val,
+                        value: raw_item_val,
                     } as Point;
                     memo.value.insert(new_item);
                     if (item_val < min.value) {
@@ -392,7 +412,7 @@ function onMouseExit(event: MouseEvent) {
             class="fade_other_selected label"
             :x="graph_data.x_map(toValue(graph_data.max_x)) + text_offset"
             :y="axis_data.y_map(current_data_point.y)"
-            :value="current_data_point.y"
+            :value="current_data_point.value"
         >
         </ValueLabel>
         <template v-if="toValue(graph_data.legend_enabled)">
@@ -445,9 +465,10 @@ function onMouseExit(event: MouseEvent) {
                                 <span>{{ telemetry_data?.data_type }}</span>
                             </div>
                             <div class="row">
-                                <span>{{
-                                    current_data_point?.y || 'Missing Data'
+                                <span v-if="current_data_point !== undefined">{{
+                                    current_data_point.value
                                 }}</span>
+                                <span v-else>Missing Data</span>
                             </div>
                         </template>
                         <template v-else>
diff --git a/frontend/src/components/TelemetryValue.vue b/frontend/src/components/TelemetryValue.vue
index 1d5e1d5..e8dad87 100644
--- a/frontend/src/components/TelemetryValue.vue
+++ b/frontend/src/components/TelemetryValue.vue
@@ -55,6 +55,7 @@ const numeric_data = computed(() => {
             v-bind="$attrs"
             :value="numeric_data"
             :max_width="10"
+            include_span
         ></NumericText>
         <span v-else v-bind="$attrs">
             Cannot Display Data of Type {{ telemetry_data!.data_type }}
diff --git a/frontend/src/components/ValueLabel.vue b/frontend/src/components/ValueLabel.vue
index cf14d6d..af29e6b 100644
--- a/frontend/src/components/ValueLabel.vue
+++ b/frontend/src/components/ValueLabel.vue
@@ -1,12 +1,12 @@
 <script setup lang="ts">
 import { computed, ref, useTemplateRef, watch } from 'vue';
 import NumericText from '@/components/NumericText.vue';
+import BooleanText from '@/components/BooleanText.vue';
 
 defineProps<{
     x: number;
     y: number;
-    value: number;
-    class?: string;
+    value: number | boolean;
 }>();
 
 const background_offset = computed(() => 5);
@@ -34,7 +34,7 @@ function update_value_text(text: string) {
 
 <template>
     <rect
-        :class="$props.class"
+        :class="$attrs.class"
         :x="x - background_offset"
         :y="y - y_offset - background_offset"
         :width="label_width + background_offset * 2"
@@ -42,10 +42,16 @@ function update_value_text(text: string) {
     ></rect>
     <text :class="$props.class" ref="label-ref" :x="x" :y="y">
         <NumericText
+            v-if="typeof value == 'number'"
             :value="value"
             :max_width="6"
             @update="update_value_text"
         ></NumericText>
+        <BooleanText
+            v-else-if="typeof value == 'boolean'"
+            :value="value"
+            @update="update_value_text"
+        ></BooleanText>
     </text>
 </template>
 
diff --git a/frontend/src/graph/line.ts b/frontend/src/graph/line.ts
index 91220ca..521792c 100644
--- a/frontend/src/graph/line.ts
+++ b/frontend/src/graph/line.ts
@@ -1,6 +1,7 @@
 export interface Point {
     x: number;
     y: number;
+    value: number | boolean;
 }
 
 export class PointLine {
diff --git a/server/proto/core.proto b/server/proto/core.proto
index 24d320d..27218fb 100644
--- a/server/proto/core.proto
+++ b/server/proto/core.proto
@@ -5,12 +5,14 @@ package core;
 enum TelemetryDataType {
     Float32 = 0;
     Float64 = 1;
+    Boolean = 2;
 }
 
 message TelemetryValue {
     oneof value {
         float float_32 = 1;
         double float_64 = 2;
+        bool boolean = 3;
     }
 }
 
diff --git a/server/src/grpc.rs b/server/src/grpc.rs
index 733b914..b9682d3 100644
--- a/server/src/grpc.rs
+++ b/server/src/grpc.rs
@@ -111,6 +111,7 @@ impl CoreTelemetryService {
         let expected_type = match value {
             Value::Float32(_) => TelemetryDataType::Float32,
             Value::Float64(_) => TelemetryDataType::Float64,
+            Value::Boolean(_) => TelemetryDataType::Boolean,
         };
         if expected_type != tlm_data.data.definition.data_type {
             return Err(Status::failed_precondition("Data Type Mismatch"));
@@ -124,6 +125,7 @@ impl CoreTelemetryService {
         let value = match value {
             Value::Float32(x) => TelemetryDataValue::Float32(x),
             Value::Float64(x) => TelemetryDataValue::Float64(x),
+            Value::Boolean(x) => TelemetryDataValue::Boolean(x),
         };
         let _ = tlm_data.data.data.send_replace(Some(TelemetryDataItem {
             value: value.clone(),
diff --git a/server/src/serialization/primitives.rs b/server/src/serialization/primitives.rs
index 3b3cd60..8e07b91 100644
--- a/server/src/serialization/primitives.rs
+++ b/server/src/serialization/primitives.rs
@@ -30,3 +30,16 @@ primitive_write_read!(i8, 1);
 
 primitive_write_read!(f64, 8);
 primitive_write_read!(f32, 4);
+
+impl FileWriteableType for bool {
+    fn write_to_file(self, file: &mut impl Write) -> std::io::Result<()> {
+        file.write_all(&[if self { 0x01 } else { 0x00 }])
+    }
+}
+impl FileReadableType for bool {
+    fn read_from_file(file: &mut impl Read) -> std::io::Result<Self> {
+        let mut buffer = [0u8; 1];
+        file.read_exact(&mut buffer)?;
+        Ok(buffer[0] != 0x00)
+    }
+}
diff --git a/server/src/telemetry/data_value.rs b/server/src/telemetry/data_value.rs
index a056fda..328f2f8 100644
--- a/server/src/telemetry/data_value.rs
+++ b/server/src/telemetry/data_value.rs
@@ -4,4 +4,5 @@ use serde::{Deserialize, Serialize};
 pub enum TelemetryDataValue {
     Float32(f32),
     Float64(f64),
+    Boolean(bool),
 }
diff --git a/server/src/telemetry/history.rs b/server/src/telemetry/history.rs
index a314f7b..78b36a2 100644
--- a/server/src/telemetry/history.rs
+++ b/server/src/telemetry/history.rs
@@ -198,6 +198,7 @@ impl HistorySegmentFile {
             match value {
                 TelemetryDataValue::Float32(value) => file.write_data::<f32>(*value)?,
                 TelemetryDataValue::Float64(value) => file.write_data::<f64>(*value)?,
+                TelemetryDataValue::Boolean(value) => file.write_data::<bool>(*value)?,
             }
         }
 
@@ -346,6 +347,10 @@ impl HistorySegmentFile {
                 self.file_position += 8;
                 Ok(TelemetryDataValue::Float64(self.file.read_data::<f64>()?))
             }
+            TelemetryDataType::Boolean => {
+                self.file_position += 1;
+                Ok(TelemetryDataValue::Boolean(self.file.read_data::<bool>()?))
+            }
         }
     }
 
@@ -357,6 +362,7 @@ impl HistorySegmentFile {
         let item_length = match telemetry_data_type {
             TelemetryDataType::Float32 => 4,
             TelemetryDataType::Float64 => 8,
+            TelemetryDataType::Boolean => 1,
         };
         let desired_position =
             Self::HEADER_LENGTH + self.length * Self::TIMESTAMP_LENGTH + index * item_length;