remove code duplication and format components info command

nf_core/components/info.py

@@ -229,6 +229,25 @@ def get_remote_yaml(self) -> Optional[dict]:
         self.remote_location = self.modules_repo.remote_url
         return yaml.safe_load(file_contents)
 
+    def generate_params_table(self, type) -> Table:
+        "Generate a rich table for inputs and outputs"
+        table = Table(expand=True, show_lines=True, box=box.MINIMAL_HEAVY_HEAD, padding=0)
+        table.add_column(f":inbox_tray: {type}")
+        table.add_column("Description")
+        if self.component_type == "modules":
+            table.add_column("Pattern", justify="right", style="green")
+        elif self.component_type == "subworkflows":
+            table.add_column("Structure", justify="right", style="green")
+        return table
+
+    def get_channel_structure(self, structure: dict) -> str:
+        "Get the structure of a channel"
+        structure_str = ""
+        for key, info in structure.items():
+            pattern = f" - {info['pattern']}" if info.get("pattern") else ""
+            structure_str += f"{key} ({info['type']}{pattern})"
+        return structure_str
+
     def generate_component_info_help(self):
         """Take the parsed meta.yml and generate rich help.
 
@@ -277,14 +296,9 @@ def generate_component_info_help(self):
 
         # Inputs
         if self.meta.get("input"):
-            inputs_table = Table(expand=True, show_lines=True, box=box.MINIMAL_HEAVY_HEAD, padding=0)
-            inputs_table.add_column(":inbox_tray: Inputs")
-            inputs_table.add_column("Description")
-            if self.component_type == "modules":
-                inputs_table.add_column("Pattern", justify="right", style="green")
-            elif self.component_type == "subworkflows":
-                inputs_table.add_column("Structure", justify="right", style="green")
-            for input in self.meta["input"]:
+            inputs_table = self.generate_params_table("Inputs")
+            for i, input in enumerate(self.meta["input"]):
+                inputs_table.add_row(f"[italic]input[{i}][/]", "", "")
                 if self.component_type == "modules":
                     for element in input:
                         for key, info in element.items():
@@ -298,23 +312,18 @@ def generate_component_info_help(self):
                         inputs_table.add_row(
                             f"[orange1 on black] {key} [/][dim i]",
                             Markdown(info["description"] if info["description"] else ""),
-                            info.get("structure", ""),
+                            self.get_channel_structure(info["structure"]) if info.get("structure") else "",
                         )
 
             renderables.append(inputs_table)
 
         # Outputs
         if self.meta.get("output"):
-            outputs_table = Table(expand=True, show_lines=True, box=box.MINIMAL_HEAVY_HEAD, padding=0)
-            outputs_table.add_column(":outbox_tray: Outputs")
-            outputs_table.add_column("Description")
-            if self.component_type == "modules":
-                inputs_table.add_column("Pattern", justify="right", style="green")
-            elif self.component_type == "subworkflows":
-                inputs_table.add_column("Structure", justify="right", style="green")
+            outputs_table = self.generate_params_table("Outputs")
             for output in self.meta["output"]:
                 if self.component_type == "modules":
                     for ch_name, elements in output.items():
+                        outputs_table.add_row(f"{ch_name}", "", "")
                         for element in elements:
                             for key, info in element.items():
                                 outputs_table.add_row(
@@ -327,7 +336,7 @@ def generate_component_info_help(self):
                         outputs_table.add_row(
                             f"[orange1 on black] {key} [/][dim i]",
                             Markdown(info["description"] if info["description"] else ""),
-                            info.get("structure", ""),
+                            self.get_channel_structure(info["structure"]) if info.get("structure") else "",
                         )
 
             renderables.append(outputs_table)