#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Diagnostic: check whether CoAdaptGS / LoD-GS have PLY, test renders, and metrics
for the cells that are missing from outputs/phase5a/task_vapre_splatatlas_repro.csv.
"""
import json
from pathlib import Path

ROOT = Path("/root/autodl-tmp/SplatAtlas")
OUTPUTS = ROOT / "outputs"

# Cells missing from phase5a (from previous diagnostic)
COADAPTGS_MISSING = [
    # T&T (12)
    "Auditorium", "Ballroom", "Barn", "Caterpillar", "Courtroom",
    "Lighthouse", "Museum", "Palace", "Playground", "Temple", "Train", "Truck",
    # Mip-360 (9)
    "Bicycle", "Bonsai", "Counter", "Flowers", "Garden", "Kitchen",
    "Room", "Stump", "Treehill",
    # DB (2)
    "DrJohnson", "Playroom",
]

LOD_GS_MISSING = [
    # NS (8)
    "Chair", "Drums", "Ficus", "Hotdog", "Lego", "Materials", "Mic", "Ship",
]

# Common alternate casings to try, since phase5a uses lowercase but
# directory names sometimes use the canonical mixed case.
def candidate_dirs(method: str, scene: str):
    cands = [
        OUTPUTS / f"{method}_{scene}",
        OUTPUTS / f"{method}_{scene.lower()}",
        OUTPUTS / f"{method}_{scene.capitalize()}",
    ]
    seen = []
    for c in cands:
        if c not in seen:
            seen.append(c)
    return seen

def find_run_dir(method: str, scene: str):
    for d in candidate_dirs(method, scene):
        if d.exists():
            return d
    # Fallback: glob anything matching
    matches = list(OUTPUTS.glob(f"{method}_*"))
    for m in matches:
        # match scene case-insensitively
        suffix = m.name[len(method) + 1:]
        if suffix.lower() == scene.lower():
            return m
    return None

def count_images(d: Path):
    if not d.exists():
        return 0
    n = 0
    for ext in ("*.png", "*.jpg", "*.jpeg"):
        n += len(list(d.glob(ext)))
    return n

def inspect_metrics_json(p: Path):
    if not p.exists():
        return None
    try:
        obj = json.load(open(p, "r"))
    except Exception as e:
        return {"_error": str(e)}
    flat = {}
    def walk(o, prefix=""):
        if isinstance(o, dict):
            for k, v in o.items():
                walk(v, f"{prefix}{k}.")
        elif isinstance(o, list):
            pass
        else:
            flat[prefix.rstrip(".")] = o
    walk(obj)
    keep = {}
    for k, v in flat.items():
        kl = k.lower()
        if any(t in kl for t in ["psnr", "ssim", "lpips"]):
            keep[k] = v
    return keep or {"_no_metric_keys": list(flat.keys())[:10]}

def check(method: str, scene: str):
    run = find_run_dir(method, scene)
    row = {
        "method": method,
        "scene": scene,
        "run_dir": str(run) if run else "MISSING",
    }
    if run is None:
        row.update({"ply": "-", "cameras": "-", "renders": "-", "gt": "-",
                    "metrics_json": "-", "metrics_values": "-"})
        return row

    ply = run / "point_cloud" / "iteration_30000" / "point_cloud.ply"
    cameras = run / "cameras.json"

    # test render dirs (typical 3DGS-family layout)
    test_root_candidates = [
        run / "test" / "ours_30000",
        run / "test" / "ours_30000" / "30000",
    ]
    test_root = next((p for p in test_root_candidates if p.exists()), None)

    if test_root:
        renders_dir = test_root / "renders"
        gt_dir = test_root / "gt"
    else:
        # Fall back: any folder named renders / gt under run/
        renders_list = list(run.rglob("renders"))
        gt_list = list(run.rglob("gt"))
        renders_dir = renders_list[0] if renders_list else None
        gt_dir = gt_list[0] if gt_list else None

    n_renders = count_images(renders_dir) if renders_dir else 0
    n_gt = count_images(gt_dir) if gt_dir else 0

    metrics_path = run / "metrics_test_iter30000.json"
    metrics_values = inspect_metrics_json(metrics_path)

    row.update({
        "ply": "OK" if ply.exists() else "MISSING",
        "cameras": "OK" if cameras.exists() else "MISSING",
        "renders": f"{n_renders} imgs @ {renders_dir}" if renders_dir else "MISSING",
        "gt":      f"{n_gt} imgs @ {gt_dir}"           if gt_dir       else "MISSING",
        "metrics_json": "OK" if metrics_path.exists() else "MISSING",
        "metrics_values": metrics_values if metrics_values else "-",
    })
    return row

def print_block(method: str, scenes):
    print(f"\n{'='*100}")
    print(f"  {method}   ({len(scenes)} missing scenes)")
    print(f"{'='*100}")
    summary = {"run_dir": 0, "ply": 0, "renders": 0, "metrics_json": 0}
    for s in scenes:
        r = check(method, s)
        print(f"\n--- {method} × {s} ---")
        print(f"  run_dir       : {r['run_dir']}")
        print(f"  PLY           : {r['ply']}")
        print(f"  cameras.json  : {r['cameras']}")
        print(f"  test renders  : {r['renders']}")
        print(f"  test gt       : {r['gt']}")
        print(f"  metrics_json  : {r['metrics_json']}")
        if isinstance(r['metrics_values'], dict):
            print(f"  metrics_values: {r['metrics_values']}")
        if r['run_dir'] != "MISSING":
            summary["run_dir"] += 1
        if r['ply'] == "OK":
            summary["ply"] += 1
        if isinstance(r['renders'], str) and r['renders'].startswith(tuple("0123456789")):
            n = int(r['renders'].split()[0])
            if n > 0:
                summary["renders"] += 1
        if r['metrics_json'] == "OK":
            summary["metrics_json"] += 1
    print(f"\n[Summary {method}]")
    for k, v in summary.items():
        print(f"  {k:<14}: {v} / {len(scenes)}")

print_block("coadaptgs", COADAPTGS_MISSING)
print_block("lod_gs", LOD_GS_MISSING)