grafana

src/elf/cli.py

@@ -1,6 +1,7 @@
 import typer
 from rich.console import Console
 from .wrap_cli import wrap_app
+from .grafana_cli import grafana_app
 
 app = typer.Typer()
 console = Console()
@@ -8,5 +9,8 @@ console = Console()
 # Add the wrap subcommand to the main app
 app.add_typer(wrap_app, name="wrap")
 
+# Add the grafana subcommand to the main app
+app.add_typer(grafana_app, name="grafana")
+
 if __name__ == "__main__":
     app() 

src/elf/grafana_cli.py

@@ -0,0 +1,132 @@
+import typer
+from rich.console import Console
+import json
+import pyperclip
+from typing import Dict, Any, List, Optional
+from pathlib import Path
+
+console = Console()
+
+# Create the main grafana subcommand
+grafana_app = typer.Typer()
+
+def safe_get(data: Dict[str, Any], key: str, default: Any = None) -> Any:
+    """Safely get a value from a dictionary."""
+    return data.get(key, default)
+
+def mutate_panel(panel: Dict[str, Any]) -> None:
+    """Mutate a single panel by setting repeat and repeatDirection fields."""
+    # Check if type is "row" and remove repeat key if it exists
+    if safe_get(panel, 'type') == 'row':
+        if 'repeat' in panel:
+            del panel['repeat']
+    else:
+        # For non-row panels, set repeat and repeatDirection
+        panel['repeat'] = 'instance'
+        panel['repeatDirection'] = 'h'
+        panel['maxPerRow'] = 12
+
+def mutate_panels_recursive(panels: List[Dict[str, Any]]) -> None:
+    """Recursively mutate panels, handling nested panels."""
+    for panel in panels:
+        if not isinstance(panel, dict):
+            continue
+            
+        # Mutate current panel
+        mutate_panel(panel)
+        
+        # Check for nested panels
+        nested_panels = safe_get(panel, 'panels', [])
+        if nested_panels and isinstance(nested_panels, list):
+            mutate_panels_recursive(nested_panels)
+
+def mutate_grafana_json(data: Dict[str, Any]) -> Dict[str, Any]:
+    """
+    Mutate Grafana JSON by setting repeat and repeatDirection fields.
+    
+    Args:
+        data: The Grafana dashboard JSON data
+        
+    Returns:
+        The mutated JSON data
+    """
+    # Make a copy to avoid mutating the original
+    mutated_data = json.loads(json.dumps(data))
+    
+    # Get panels safely
+    panels = safe_get(mutated_data, 'panels', [])
+    
+    if panels and isinstance(panels, list):
+        mutate_panels_recursive(panels)
+    
+    return mutated_data
+
+@grafana_app.command("mutate", short_help="Mutate Grafana JSON to set repeat fields.")
+def mutate_dashboard(
+    input_file: Optional[Path] = typer.Option(
+        None, "--input-file", "-i", help="Input JSON file path. If not provided, reads from clipboard."
+    ),
+    output_file: Optional[Path] = typer.Option(
+        None, "--output-file", "-o", help="Output JSON file path. If not provided, outputs to clipboard."
+    )
+):
+    """
+    Mutate Grafana JSON by setting repeat="instance" and repeatDirection="h".
+    
+    This command processes Grafana dashboard JSON and modifies panels to:
+    - Set repeat field to "instance"
+    - Set repeatDirection field to "h" 
+    - Set maxPerRow to 12
+    - Remove repeat field from row-type panels
+    """
+    console.print("[blue]Processing Grafana dashboard JSON...[/blue]")
+    
+    # Read input
+    try:
+        if input_file:
+            console.print(f"[blue]Reading from file: {input_file}[/blue]")
+            if not input_file.exists():
+                console.print(f"[red]Error: Input file '{input_file}' not found[/red]")
+                raise typer.Exit(code=1)
+            
+            json_content = input_file.read_text(encoding='utf-8')
+        else:
+            console.print("[blue]Reading from clipboard...[/blue]")
+            json_content = pyperclip.paste()
+            if not json_content.strip():
+                console.print("[red]Error: Clipboard is empty or contains no text.[/red]")
+                raise typer.Exit(code=1)
+    except Exception as e:
+        console.print(f"[red]Error reading input: {e}[/red]")
+        raise typer.Exit(code=1)
+    
+    # Parse JSON
+    try:
+        data = json.loads(json_content)
+    except json.JSONDecodeError as e:
+        console.print(f"[red]Error parsing JSON: {e}[/red]")
+        raise typer.Exit(code=1)
+    
+    # Mutate the data
+    try:
+        mutated_data = mutate_grafana_json(data)
+        console.print("[green]Successfully mutated Grafana JSON![/green]")
+    except Exception as e:
+        console.print(f"[red]Error mutating JSON: {e}[/red]")
+        raise typer.Exit(code=1)
+    
+    # Output result
+    try:
+        output_json = json.dumps(mutated_data, indent=2, ensure_ascii=False)
+        
+        if output_file:
+            console.print(f"[blue]Writing to file: {output_file}[/blue]")
+            output_file.write_text(output_json, encoding='utf-8')
+            console.print(f"[green]Output written to {output_file}[/green]")
+        else:
+            console.print("[blue]Copying to clipboard...[/blue]")
+            pyperclip.copy(output_json)
+            console.print("[green]Output copied to clipboard![/green]")
+    except Exception as e:
+        console.print(f"[red]Error writing output: {e}[/red]")
+        raise typer.Exit(code=1)