1 files changed, 85 insertions, 0 deletions
diff --git a/server/continuedev/plugins/policies/default.py b/server/continuedev/plugins/policies/default.py
new file mode 100644
index 00000000..574d2a1c
--- /dev/null
+++ b/server/continuedev/plugins/policies/default.py
@@ -0,0 +1,85 @@
+from typing import Type, Union
+
+from ...core.config import ContinueConfig
+from ...core.main import History, Policy, Step
+from ...core.observation import UserInputObservation
+from ..steps.chat import SimpleChatStep
+from ..steps.custom_command import CustomCommandStep
+from ..steps.main import EditHighlightedCodeStep
+from ..steps.steps_on_startup import StepsOnStartupStep
+
+
+def parse_slash_command(inp: str, config: ContinueConfig) -> Union[None, Step]:
+    """
+    Parses a slash command, returning the command name and the rest of the input.
+    """
+    if inp.startswith("/"):
+        command_name = inp.split(" ")[0].strip()
+        after_command = " ".join(inp.split(" ")[1:])
+
+        for slash_command in config.slash_commands:
+            if slash_command.name == command_name[1:]:
+                params = slash_command.params
+                params["user_input"] = after_command
+                try:
+                    return slash_command.step(**params)
+                except TypeError as e:
+                    raise Exception(
+                        f"Incorrect params used for slash command '{command_name}': {e}"
+                    )
+    return None
+
+
+def parse_custom_command(inp: str, config: ContinueConfig) -> Union[None, Step]:
+    command_name = inp.split(" ")[0].strip()
+    after_command = " ".join(inp.split(" ")[1:])
+    for custom_cmd in config.custom_commands:
+        if custom_cmd.name == command_name[1:]:
+            slash_command = parse_slash_command(custom_cmd.prompt, config)
+            if slash_command is not None:
+                return slash_command
+            return CustomCommandStep(
+                name=custom_cmd.name,
+                description=custom_cmd.description,
+                prompt=custom_cmd.prompt,
+                user_input=after_command,
+                slash_command=command_name,
+            )
+    return None
+
+
+class DefaultPolicy(Policy):
+    default_step: Type[Step] = SimpleChatStep
+    default_params: dict = {}
+
+    def next(self, config: ContinueConfig, history: History) -> Step:
+        # At the very start, run initial Steps specified in the config
+        if history.get_current() is None:
+            return StepsOnStartupStep()
+
+        observation = history.get_current().observation
+        if observation is not None and isinstance(observation, UserInputObservation):
+            # This could be defined with ObservationTypePolicy. Ergonomics not right though.
+            user_input = observation.user_input
+
+            slash_command = parse_slash_command(user_input, config)
+            if slash_command is not None:
+                if (
+                    getattr(slash_command, "user_input", None) is None
+                    and history.get_current().step.user_input is not None
+                ):
+                    history.get_current().step.user_input = (
+                        history.get_current().step.user_input.split()[0]
+                    )
+                return slash_command
+
+            custom_command = parse_custom_command(user_input, config)
+            if custom_command is not None:
+                return custom_command
+
+            if user_input.startswith("/edit"):
+                return EditHighlightedCodeStep(user_input=user_input[5:])
+
+            return self.default_step(**self.default_params)
+
+        return None