"""Live log viewer for overview pane. Run: python3 bin/log_view.py [--follow]"""
import sys
import time
import os

sys.path.insert(0, os.path.dirname(__file__))
from log_append import read_entries

from rich.console import Console
from rich.table import Table
from rich import box

LOG_PATH = os.path.expanduser('~/.claude/autoresearch/log.jsonl')
console = Console()


def render_table(entries):
    table = Table(box=box.SIMPLE, show_header=True, header_style="bold #DA251C")
    table.add_column("Time", style="dim", width=8)
    table.add_column("Project", width=14)
    table.add_column("Exp", width=6)
    table.add_column("Description", width=42)
    table.add_column("Δ", width=8, justify="right")
    table.add_column("", width=2)
    for e in entries[-40:]:
        ts = (e.get('ts') or '')[11:16]  # HH:MM from ISO8601
        before = e.get('metric_before')
        after = e.get('metric_after')
        if before is not None and after is not None:
            delta = f"{after - before:+.3f}"
            delta_style = "green" if after < before else "red"
        else:
            delta, delta_style = "n/a", "dim"
        kept = "✓" if e.get('kept') else "✗"
        kept_style = "green" if e.get('kept') else "red"
        table.add_row(
            ts,
            (e.get('project') or '?')[:14],
            str(e.get('exp') or '?'),
            (e.get('description') or '')[:42],
            f"[{delta_style}]{delta}[/{delta_style}]",
            f"[{kept_style}]{kept}[/{kept_style}]",
        )
    return table


if __name__ == '__main__':
    follow = '--follow' in sys.argv
    while True:
        entries = read_entries()
        console.clear()
        console.print(
            f"[bold #DA251C]autoresearch[/bold #DA251C] — {len(entries)} experiments",
            justify="center"
        )
        console.print(render_table(entries))
        if not follow:
            break
        time.sleep(5)