examples/rofl-oracle/oracle: Cleanup

- move deploy script to task
- remove sapphire-hardhat as it's not needed
- simplify commands and docs

docs/rofl/app.md

@@ -48,7 +48,7 @@ You can find the entire project inside the Oasis SDK repository under
 First we create the basic directory structure for the minimal runtime using
 Rust's [`cargo`]:
 
-```bash
+```shell
 cargo init rofl-oracle
 ```
 
@@ -282,7 +282,7 @@ a simple policy, create a file `policy.yml` with the following content:
 
 To then register a new ROFL app run the CLI as follows:
 
-```bash
+```shell
 oasis rofl create policy.yml --network testnet --paratime sapphire
 ```
 
@@ -363,7 +363,7 @@ previous step.
 In order to quickly build the ROFL app you can use the helpers provided by the
 Oasis CLI as follows:
 
-```bash
+```shell
 oasis rofl build sgx --network testnet --paratime sapphire
 ```
 
@@ -388,7 +388,7 @@ Now that the app binaries are available, we need to update the policy with the
 correct cryptographic identity of the app. To obtain the identity of the app
 that was just built run:
 
-```bash
+```shell
 oasis rofl identity rofl-oracle.orc
 ```
 

examples/runtime-sdk/rofl-oracle/oracle/README.md

@@ -1,4 +1,41 @@
 # Simple ROFL Oracle Contract
 
-See the ROFL tutorial for some examples on how to use this project.
+For the ROFL Oracle smart contract delpoyment you will need the following
+information:
+
+- the ROFL app ID (rofl1...)
+- the deployer's private key
+- the network you're deploying to (sapphire-testnet, sapphire-localnet,
+  sapphire)
+
+First install dependencies and compile the smart contract:
+
+```shell
+npm install
+npx hardhat compile
+```
+
+Then, prepare your hex-encoded private key for paying the deployment gas fee
+and store it as an environment variable:
+
+```shell
+export PRIVATE_KEY=0x...
+```
+
+Finally, deploy the contract, provide the ROFL App ID and the network:
+
+```shell
+npx hardhat deploy rofl1... --network sapphire-localnet
+```
+
+Once your Oracle ROFL is running, it will submit the observations to the smart
+contract deployed above. You can fetch the data stored on-chain by running:
+
+```shell
+npx hardhat oracle-query 0xbdEd0D2bf404bdcBa897a74E6657f1f12e5C6fb6 --network sapphire-localnet
+```
+
+For more information check out the [ROFL tutorial].
+
+[ROFL tutorial]: https://github.com/oasisprotocol/oasis-sdk/blob/main/docs/rofl/app.md
 

examples/runtime-sdk/rofl-oracle/oracle/hardhat.config.ts

@@ -1,8 +1,7 @@
 import { HardhatUserConfig } from "hardhat/config";
-import '@oasisprotocol/sapphire-hardhat';
 import "@nomicfoundation/hardhat-toolbox";
 
-import "./tasks/query";
+import "./src/tasks";
 
 const config: HardhatUserConfig = {
   solidity: "0.8.19",