add show_methods class attribute for reports

deprogressapi/base.py

@@ -2,7 +2,16 @@ from __future__ import annotations
 
 import curses
 from enum import Enum
-from typing import TYPE_CHECKING, Any, Dict, Optional, Type, Union
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Callable,
+    ClassVar,
+    Dict,
+    Optional,
+    Type,
+    Union,
+)
 
 from deprogressapi.settings import ReportSettings, ShowReportMethod
 from pydantic import BaseModel, Field, create_model
@@ -35,6 +44,12 @@ class BaseReport(BaseModel):
     _response_properties: Optional[Dict] = None
     _window: Optional[curses.window] = None  # type: ignore
 
+    show_methods: ClassVar[Dict[ShowReportMethod, str]] = {
+        ShowReportMethod.none: "show_none",
+        ShowReportMethod.print_: "show_print",
+        ShowReportMethod.curses: "show_curses",
+    }
+
     # settings for this report
     settings: ReportSettings = Field(
         default_factory=ReportSettings, description="Settings for the report."
@@ -181,18 +196,13 @@ class BaseReport(BaseModel):
     def show(self) -> None:
         """Output the report.
 
-        This method, supposed to be implemented by subclasses, reports to the
-        final user on the command-line.
-
-        The default implementation just prints the json string of this report.
+        This uses the methods defined in the :attr:`show_methods` attribute
+        based on the specified show method in the :attr:`settings`.
         """
-        method = self.settings.get_show_method()
-        if method == ShowReportMethod.print_:
-            self.show_print()
-        elif method == ShowReportMethod.curses:
-            self.show_curses()
-        elif method == ShowReportMethod.none:
-            self.show_none()
+        method_identifier = self.settings.get_show_method()
+        method_name = self.show_methods[method_identifier]
+        method: Callable[[], None] = getattr(self, method_name)
+        return method()
 
     def show_print(self) -> None:
         """Show the report using pythons built-in :func:`print` function."""