add a bit more logging

src/log.py

@@ -32,3 +32,7 @@ def info(msg: str):
 
 def warning(msg: str):
     print(f"[bold yellow]WARNING[/bold yellow]: {msg}")
+
+
+def debug(msg: str):
+    print(f"[bold green]DEBUG[/bold green]: {msg}")

src/plot.py

@@ -8,7 +8,7 @@ import shutil
 from itertools import zip_longest
 
 from error import GPLTError
-from log import panic, warning
+from log import panic, warning, debug, info
 
 from typing import Any, Dict, List, Optional, Tuple, TypedDict
 
@@ -196,6 +196,7 @@ def _plot_single(g: Graph, i: int, ax: matplotlib.axes.Axes) -> matplotlib.lines
     line = ax.plot(xs, ys, label=g.get("name", None), **line_style)[0]
 
     if len(es) != 0:
+        debug(f"adding errors to graph {name}")
         ys, es = np.array(ys), np.array(es)
         down = ys - es
         up = ys + es
@@ -228,6 +229,8 @@ def _check_class_fields(
 
 
 def check(graphs: Any):
+    info(f"checking graphs")
+
     if not isinstance(graphs, list):
         panic(
             GPLTError.INVALID_ARGUMENTS,
@@ -238,6 +241,7 @@ def check(graphs: Any):
     required_point_fields = __get_class_fields(Point)
 
     for i, g in enumerate(graphs):
+        debug(f"checking graph {i}")
         if not isinstance(g, dict):
             panic(
                 GPLTError.INVALID_ARGUMENTS,
@@ -254,7 +258,7 @@ def check(graphs: Any):
             )
 
         # TODO: check style
-        warning(f"the style of graph {name} won't be checked")
+        info(f"the style of graph {name} won't be checked")
 
 
 # see [`HELP`]
@@ -299,9 +303,12 @@ def plot(
 
     legends = {}
     for i, g in enumerate(graphs):
+        info(f"plotting graph {i}")
+
         line = _plot_single(g, i, ax)
         legend = g.get("legend", None)
         if legend is not None:
+            debug(f"adding legend of graph {i}")
             if legend not in legends:
                 legends[legend] = []
             legends[legend] += [line]