Add UI modules and tests

src/ui/timeline.py

@@ -0,0 +1,110 @@
+"""Timeline view for DevTrace events."""
+
+from datetime import datetime
+from typing import List, Optional, Dict, Any
+
+from rich.console import Console
+from rich.table import Table
+from rich.panel import Panel
+
+from ..storage.models import (
+    FileEvent,
+    CommandEvent,
+    GitEvent,
+    TimelineEvent
+)
+
+
+class TimelineView:
+    """Displays development events in a timeline format."""
+
+    EVENT_ICONS = {
+        "created": "📄",
+        "modified": "✏️",
+        "deleted": "🗑️",
+        "moved": "📁",
+        "commit": "💾",
+        "branch": "🌿",
+        "merge": "🔀",
+        "checkout": "🔀",
+        "push": "📤",
+        "pull": "📥",
+    }
+
+    def __init__(self, events: Optional[List] = None):
+        self.events = events or []
+        self.console = Console()
+
+    def _format_timestamp(self, timestamp: Optional[datetime]) -> str:
+        """Format timestamp for display."""
+        if timestamp is None:
+            return "N/A"
+
+        now = datetime.now()
+        delta = now - timestamp
+
+        if delta.total_seconds() < 60:
+            return "Just now"
+        elif delta.total_seconds() < 3600:
+            mins = int(delta.total_seconds() / 60)
+            return f"{mins}m ago"
+        elif delta.total_seconds() < 86400:
+            hours = int(delta.total_seconds() / 3600)
+            return f"{hours}h ago"
+        else:
+            return timestamp.strftime("%Y-%m-%d %H:%M")
+
+    def _get_event_color(self, event_type: str) -> str:
+        """Get color for event type."""
+        colors = {
+            "file": "cyan",
+            "command": "green",
+            "git": "magenta",
+        }
+        return colors.get(event_type, "white")
+
+    def display(self, limit: int = 50) -> None:
+        """Display the timeline."""
+        if not self.events:
+            self.console.print("[bold yellow]No events to display[/]")
+            return
+
+        table = Table(title="Timeline", show_header=True, header_style="bold magenta")
+        table.add_column("Time", width=12, style="cyan")
+        table.add_column("Icon", width=4, justify="center")
+        table.add_column("Type", width=10)
+        table.add_column("Details", overflow="fold")
+
+        for event in self.events[:limit]:
+            if isinstance(event, FileEvent):
+                icon = self.EVENT_ICONS.get(event.event_type, "📄")
+                details = event.file_path
+            elif isinstance(event, CommandEvent):
+                icon = "⚡"
+                details = event.short_command
+            elif isinstance(event, GitEvent):
+                icon = self.EVENT_ICONS.get(event.operation, "🔧")
+                details = f"{event.operation} {event.branch or event.short_hash}"
+            else:
+                icon = "📌"
+                details = str(event)
+
+            color = self._get_event_color(type(event).__name__.replace("Event", "").lower())
+            time_str = self._format_timestamp(getattr(event, 'timestamp', None))
+
+            table.add_row(
+                f"[{color}]{time_str}[/]",
+                icon,
+                f"[{color}]{type(event).__name__.replace('Event', '')}[/]",
+                details
+            )
+
+        self.console.print(table)
+
+    def get_event_counts(self) -> Dict[str, int]:
+        """Get counts of each event type."""
+        counts = {}
+        for event in self.events:
+            event_type = type(event).__name__.replace("Event", "").lower()
+            counts[event_type] = counts.get(event_type, 0) + 1
+        return counts