From a1b44c35223f0ff0b91703643940dee6d399d6be Mon Sep 17 00:00:00 2001
From: Ryan Adolf <ryanadolf123@gmail.com>
Date: Sun, 12 Sep 2021 12:04:17 -0700
Subject: [PATCH] Add state attribute for computing end time

---
 README.md      | 10 +++++++++-
 src/helpers.ts |  1 +
 src/types.ts   |  1 +
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index bdb35b5..491ffca 100644
--- a/README.md
+++ b/README.md
@@ -211,7 +211,15 @@ duration:
   units: minutes # Since the slider state is a number like 10.0
 ```
 
-#### 7. If your entity doesn't meet these criteria...
+#### 7. My end time comes from the entity's state
+
+End times and durations can use any of the types `attribute`, `fixed`, `entity` (you've seen these 3 before) and `state`! The `state` type uses the entity's current state. Let's say we have a timer who's state is the time it will go off, like `2021-09-07T20:24:13+00:00`! Here's how to configure the card:
+
+```yaml
+end_time: { state: true }
+```
+
+#### 8. If your entity doesn't meet these criteria...
 
 🧡 please create an issue and tell me the entity so I can improve these instructions! ❤️️
 
diff --git a/src/helpers.ts b/src/helpers.ts
index 31837b0..c61ee95 100644
--- a/src/helpers.ts
+++ b/src/helpers.ts
@@ -101,6 +101,7 @@ export const attribute = (hass: HomeAssistant, stateObj: HassEntity, attrib: Att
   if (!attrib) throw new Error('One of duration, start_time, or end_time was not fully specified. Make sure you set entity, fixed, or attribute');
   if ('fixed' in attrib) return attrib.fixed;
   if ('entity' in attrib) return hass.states[attrib.entity].state;
+  if ('state' in attrib) return stateObj.state;
   return stateObj.attributes[attrib.attribute];
 }
 
diff --git a/src/types.ts b/src/types.ts
index 7ba5628..b310e80 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -37,6 +37,7 @@ interface modsConfig extends styleConfig {
 type AttributeType =
   | { attribute: string }
   | { entity: string }
+  | { state: any }
   | { fixed: number };
 export type AttributeConfig = AttributeType & {
   units?: "duration" | "hours" | "minutes" | "seconds";