Chain Matching

// ── Запрос: отправка с цепочкой шагов ──
const form = new FormData();
form.append("image", imageInput.files[0]);
form.append("template", templateInput.files[0]);
form.append("steps", JSON.stringify([
  { tool: "template", params: { method: "TM_CCOEFF_NORMED", threshold: 0.95 } },
  { tool: "template", params: { threshold: 0.7 } },
  { tool: "feature",  params: { detector: "SIFT", matcher: "FLANN", ratio_threshold: 0.7 } },
]));

const res = await fetch("/api/v1/match/chain", {
  method: "POST",
  body: form,
});
const task = await res.json();

// ── Ответ task: ──
// {uid: "e1f2a3b4-...", status: "queued", tool: "chain",
//  params: {steps: [...]},
//  input_files: ["uploads/e1f2a.../scene.png","uploads/e1f2a.../object.png"]}

// ── Запрос: поллинг статуса до завершения ──
async function waitForResult(uid) {
  while (true) {
    const r = await fetch(`/api/v1/tasks/${uid}`);
    const data = await r.json();
    if (data.status === "done" || data.status === "error")
      return data;
    await new Promise(r => setTimeout(r, 1000));
  }
}
const result = await waitForResult(task.uid);

// ── Ответ result (когда done): ──
// {uid: "e1f2a3b4-...", status: "done", tool: "chain",
//  result_data: {
//    chain_result: "found", completed_step: 2, total_steps: 3,
//    steps: [
//      {step:1, tool:"template", status:"done", found:false, ...},
//      {step:2, tool:"template", status:"done", found:true,
//       result_data:{filtered_matches:3, best_score:0.82}, ...}]}}

import requests, json, time

# ── Запрос: отправить цепочку ──
steps = [
    {"tool": "template", "params": {"method": "TM_CCOEFF_NORMED", "threshold": 0.95}},
    {"tool": "template", "params": {"threshold": 0.7}},
    {"tool": "feature",  "params": {"detector": "SIFT", "ratio_threshold": 0.7}},
]

resp = requests.post(
    "http://localhost:8888/api/v1/match/chain",
    files={
        "image": open("scene.png", "rb"),
        "template": open("object.png", "rb"),
    },
    data={"steps": json.dumps(steps)},
)
task = resp.json()

# ── Ответ task: ──
# {"uid": "e1f2a3b4-...", "status": "queued", "tool": "chain",
#  "params": {"steps": [...]},
#  "input_files": ["uploads/e1f2a.../scene.png","uploads/e1f2a.../object.png"]}

# ── Запрос: дождаться результата ──
while True:
    r = requests.get(f"http://localhost:8888/api/v1/tasks/{task['uid']}")
    result = r.json()
    if result["status"] in ("done", "error"):
        break
    time.sleep(1)

# ── Ответ result (когда done): ──
# {"uid": "e1f2a3b4-...", "status": "done", "tool": "chain",
#  "result_data": {
#    "chain_result": "found",
#    "completed_step": 2,
#    "total_steps": 3,
#    "steps": [
#      {"step":1, "tool":"template", "status":"done", "found":false,
#       "result_data":{"filtered_matches":0, "best_score":0.82}},
#      {"step":2, "tool":"template", "status":"done", "found":true,
#       "result_data":{"filtered_matches":3, "best_score":0.82},
#       "result_files":["results/e1f2a.../step_2_matches.png"]}]}}

# ── Проверка результата ──
rd = result["result_data"]
print(f"Итог: {rd['chain_result']}")
print(f"Выполнено шагов: {rd['completed_step']}/{rd['total_steps']}")
for s in rd["steps"]:
    print(f"  Шаг {s['step']}: {s['tool']} — {'найдено' if s['found'] else 'не найдено'}")