allow change lnaddress, remove one step of tutorial.

tutorials/02_run_dvm.py

@@ -0,0 +1,82 @@
+# Welcome back, this time we don't use a notebook, but we run an actual Python Script.
+# Go to the very bottom of this code and replace the identifier with the one from last exercise.
+# We use a GenericDVM kind to start with. Now what's this? We have many predefined tasks in the task folder, but
+# the genericDVM gives you some control for simple manipulation without caring about the tasks. Important is that
+# we set the Kind of the GenericDVM. In Line 28 you see that we give it Kind 5050 (Text generation).
+# On https://www.data-vending-machines.org/ there's an overview on all current kinds.
+# On https://github.com/nostr-protocol/data-vending-machines/ you can make a PR for your own kind, if you come up with one later.
+# Check the run_dvm function for more explanations
+import os
+from pathlib import Path
+
+import dotenv
+
+from nostr_dvm.tasks.generic_dvm import GenericDVM
+from nostr_sdk import Kind, Keys
+from nostr_dvm.utils.admin_utils import AdminConfig
+from nostr_dvm.utils.dvmconfig import build_default_config
+from nostr_dvm.utils.nip89_utils import NIP89Config
+from nostr_dvm.utils.zap_utils import change_ln_address
+
+
+def run_dvm(identifier):
+    # You have seen this one before, we did this in tutorial 2. This function will either create or load. the parameters of our DVMConfig.
+    # Make sure you replace the identifier down in the main function with the one you generated in tutorial 2, or we will create a new one here.
+    dvm_config = build_default_config(identifier)
+    # As we will use a GenericDVM we need to give it a kind. Here we use kind 5050 (Text Generation) as we want to reply with some simple text.
+    # There is a bunch of predefined DVMs in tasks that already have a kind set, but as we use the genericDVM we have to manually set it here.
+    dvm_config.KIND = Kind(5050)
+
+    # We can set options that we can later use in our process function. They are stored in a simple JSON
+    options = {
+        "some_option": "#RunDVM",
+    }
+    # We give the DVM a human readable name
+    name = "My very first DVM"
+    # Next we initalize a GenericDVM with the name and the dvm_config and the options we just created, as well as
+    # an empty AdminConfig() and NIP89Config(). We will check these out in later tutorials, so don't worry about them now.
+    dvm = GenericDVM(name=name, dvm_config=dvm_config, options=options,
+                     nip89config=NIP89Config(), admin_config=AdminConfig())
+
+
+    # Normally we would define the dvm interface as we do in the tasks folder (we will do it later in the tutorials as well,
+    # but here is a small hack to quickly manipulate what our dvm will do.
+    async def process(request_form):
+        # First we always parse the options from our request_form, that is build internally in the create_request_from_nostr_event function.
+        options = dvm.set_options(request_form)
+        # We build our result we are giving back from some text
+        result = "The result of the DVM is: "
+        # and the option we defined above and handed over to our DVM (some_option)
+        result += options["some_option"]
+        print(result)
+        # Then we simply return the result
+        return result
+
+    dvm.process = process  # now we simply overwrite our DVM's process function with the one we defined here.
+    # and finally we run the DVM #RunDVM
+    dvm.run()
+
+    # When the DVM is running you should see a blue message with the name and the public key in bech32 and hex format.
+    # For the next exercise, copy the Hex key, and let this DVM run, you will need it :)
+
+
+if __name__ == '__main__':
+    #We open the .env file we created before.
+    env_path = Path('.env')
+    if not env_path.is_file():
+        with open('.env', 'w') as f:
+            print("Writing new .env file")
+            f.write('')
+    if env_path.is_file():
+        print(f'loading environment from {env_path.resolve()}')
+        dotenv.load_dotenv(env_path, verbose=True, override=True)
+    else:
+        raise FileNotFoundError(f'.env file not found at {env_path} ')
+
+    # Replace the identifier with the one from the last notebook, or a new dvmconfig will be stored
+    identifier = "tutorial01"
+
+    # psst, you can change your lightning address here:
+    # change_ln_address(identifier, "a_cool_new_address")
+
+    run_dvm(identifier)