import os
import sys
import time
import json
from pathlib import Path
import mimetypes
import requests

BASE = "http://127.0.0.1:8008"
OUTPUT_DIR = Path("Tools/output/explorer_3d")
OUTPUT_DIR.mkdir(parents=True, exist_ok=True)
REF_IMAGE = OUTPUT_DIR / "explorer_ref.png"

session = requests.Session()

def wait_job(url_path, timeout=3600, interval=3):
    deadline = time.monotonic() + timeout
    while time.monotonic() < deadline:
        r = session.get(f"{BASE}{url_path}", timeout=30)
        r.raise_for_status()
        job = r.json()
        status = job.get("status")
        stage = job.get("stage", "")
        progress = job.get("progress", 0)
        print(f"[{status}] stage={stage} progress={progress}%", flush=True)
        if status in ("completed", "failed"):
            if status != "completed" or job.get("error"):
                raise RuntimeError(f"Job failed: {job.get('error') or job}")
            return job
        time.sleep(interval)
    raise TimeoutError(f"Job timeout: {url_path}")

def download(url, out_path):
    r = session.get(f"{BASE}{url}", timeout=300)
    r.raise_for_status()
    out = Path(out_path)
    if r.content[:4] == b"PK\x03\x04":
        out = out.with_suffix(".zip")
    out.parent.mkdir(parents=True, exist_ok=True)
    out.write_bytes(r.content)
    print(f"Downloaded: {out} ({len(r.content)} bytes)")
    return out

# 1. Mesh Generation
print("=== Step 1: DGX Hunyuan3D Mesh Generation ===")
mime = mimetypes.guess_type(REF_IMAGE.name)[0] or "image/png"
with REF_IMAGE.open("rb") as f:
    resp = session.post(f"{BASE}/api/jobs", timeout=120, data={
        "engine": "dgx",
        "mode": "image",
        "character_type": "humanoid",
        "prompt": "chibi 3D game character boy adventurer in A-pose",
        "resolution": 256,
        "source_faces": 50000,
        "target_faces": 5000,
        "texture_size": 1024,
        "output_format": "fbx"
    }, files={"image": (REF_IMAGE.name, f, mime)})

if resp.status_code not in (200, 201, 202):
    raise RuntimeError(f"Create job failed: {resp.status_code} {resp.text}")

job = resp.json()
job_id = job["id"]
print(f"Created Mesh Job ID: {job_id}")

mesh_job = wait_job(f"/api/jobs/{job_id}", timeout=1800)
print(f"Mesh completed. Ready for motion: {mesh_job.get('ready_for_motion')}")
(OUTPUT_DIR / "mesh_job.json").write_text(json.dumps(mesh_job, ensure_ascii=False, indent=2), encoding="utf-8")

# 2. MIA Humanoid Rigging
print("\n=== Step 2: Make-It-Animatable (MIA) Humanoid Rigging ===")
rig_resp = session.post(f"{BASE}/api/jobs/{job_id}/rig", timeout=120, data={
    "character_type": "humanoid",
    "skeleton_template": "auto"
})
if rig_resp.status_code not in (200, 201, 202):
    raise RuntimeError(f"Trigger rig failed: {rig_resp.status_code} {rig_resp.text}")

print("Rig triggered:", rig_resp.json())

rig_job = wait_job(f"/api/jobs/{job_id}", timeout=1800)
print("Rigging completed!")
(OUTPUT_DIR / "rig_job.json").write_text(json.dumps(rig_job, ensure_ascii=False, indent=2), encoding="utf-8")

# Download character assets
print("\n=== Downloading Character Assets ===")
for key, url in rig_job.get("downloads", {}).items():
    suffix = ".fbx" if "fbx" in key else ".glb" if "glb" in key else ".bin"
    download(url, OUTPUT_DIR / f"{key}{suffix}")

print("Mesh & Rig completed successfully!")