feat: add readme with description and example usages (#15)

README.md

@@ -1,3 +1,108 @@
 # EcoNetAPI-java
 
-This project provides a java wrapper over the unofficial EcoNet API
+This project provides a java wrapper over the unofficial Rheem EcoNet API. It can be leveraged to get information about
+devices, to set things like operation mode or temperature setpoint, to listen to events device is generating, or to inspect
+energy efficiency
+
+**NOTE:** this is an unofficial API and thus could break without notice.
+
+### Usage
+
+Get an instance of the EcoNetAPI object like `EcoNetAPI.getInstance("EMAIL", "PASSWORD")`. This object can be stored and reused without fear of leaving open connections.
+
+### Examples
+
+1. Listing devices:
+
+```
+Optional<UserData> result = EcoNetAPI.getInstance(email, password).fetchUserData();
+List<Equipment> equipment = result.get().getResults().getLocations().get(0).getEquipments()
+```
+
+2. Get current setpoint of a device:
+
+```
+EcoNetAPI.getInstance(email, password).fetchUserData().ifPresent(userData -> {
+    Location location = userData.getResults().getLocations().get(0);
+    Equipment equipment = location.getEquipments().get(0);
+    int currentSetpoint = equipment.getSetpoint().getValue();
+});
+```
+
+3. Set the mode of a device:
+
+```
+EcoNetAPI.getInstance(email, password).fetchUserData().ifPresent(userData -> {
+    Location location = userData.getResults().getLocations().get(0);
+    Equipment equipment = location.getEquipments().get(0);
+    Modes currentMode = equipment.getModes();
+    api.setMode(equipment.getDeviceName(), equipment.getSerialNumber(), Modes.VACATION_MODE);
+});
+```
+
+4. Subscribe to device events:
+
+```
+EcoNetAPI.getInstance(email, password)
+				.subscribeToEvents((message) -> logger.info(message.getTopic() + " " + message.getPayload()));
+```
+
+5. Fetching energy usage information:
+
+```
+EcoNetAPI.getInstance(email, password).fetchUserData().ifPresent(userData -> {
+    Location location = userData.getResults().getLocations().get(0);
+    Equipment equipment = location.getEquipments().get(0);
+    EnergyData energyData = api.fetchEnergyUsage(equipment.getDeviceName(), equipment.getSerialNumber(), 8, 10, 2024)
+        .get().getResults()
+});
+```
+
+### Running tests
+
+1. Create an `application.properties` file in `/src/test/resources/application.properties`
+2. Add your email into the file like `econet_email=[EMAIL]`
+3. Add your password into the file like `econet_password=[ACCOUNT_PASSWORD]`
+4Run
+
+## Installing
+
+This library is available as a GitHub package and can be installed by adding to your `pom.xml`
+
+```
+<dependency>
+  <groupId>com.bigboxer23</groupId>
+  <artifactId>EcoNetAPI-java</artifactId>
+  <version>1.0.0</version>
+</dependency>
+```
+
+Since it is a GitHub package, GitHub requires maven authenticate as a valid user to fetch from their package repository.
+
+Instructions:
+1. Create `~/.m2/settings.xml` if it does not exist
+2. Create a GitHub personal access token if you do not have one (`settings` -> `developer settings` -> `tokens classic`)
+3. In below example need to update `username` to your own GitHub username.  Update `password` to include your GitHub
+access token created in the previous step
+4. Example file:
+
+```
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
+xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd">
+  <localRepository />
+  <interactiveMode />
+  <usePluginRegistry />
+  <offline />
+  <pluginGroups />
+  <servers>
+    <server>
+      <id>github</id>
+      <username>[my username]</username>
+      <password>[my GH Access Token]</password>
+    </server>
+  </servers>
+  <mirrors />
+  <proxies />
+</settings>
+```
+