{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "service-job-0",
   "metadata": {},
   "source": [
    "# A job on the service\n",
    "\n",
    "The job service runs the same engine on a host with more memory, and seals each result with its own key. The client here uses the standard library alone; the receipt is checked in this process, offline.\n",
    "\n",
    "This page runs against the service that `WAI_QUANTUM_SERVICE` names (a local instance in CI: `wai-quantum-service serve`). Without it, the cells that need a service say so and do nothing. The public service is at `https://wai.transaction.science/quantum-jobs/v1`."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "service-job-1",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-11-11T12:23:55.614783Z",
     "iopub.status.busy": "2026-11-11T12:23:55.614671Z",
     "iopub.status.idle": "2026-11-11T12:23:55.622898Z",
     "shell.execute_reply": "2026-11-11T12:23:55.622614Z"
    },
    "tags": [
     "service"
    ]
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "a service to run against\n"
     ]
    }
   ],
   "source": [
    "import os\n",
    "import wai_quantum as wq\n",
    "\n",
    "base = os.environ.get(\"WAI_QUANTUM_SERVICE\")\n",
    "svc = wq.Service(base) if base else None\n",
    "print(\"a service to run against\" if svc and svc.health() else \"no service named: the cells below skip\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "service-job-2",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-11-11T12:23:55.623885Z",
     "iopub.status.busy": "2026-11-11T12:23:55.623807Z",
     "iopub.status.idle": "2026-11-11T12:23:55.839933Z",
     "shell.execute_reply": "2026-11-11T12:23:55.839453Z"
    },
    "tags": [
     "service"
    ]
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "submitted; status queued or running\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "done stabilizer exact {'00': 495, '11': 505}\n"
     ]
    }
   ],
   "source": [
    "bell = \"OPENQASM 3.0; qubit[2] q; bit[2] c; h q[0]; cx q[0], q[1]; c = measure q;\"\n",
    "if svc:\n",
    "    rec = svc.submit(bell, shots=1000, seed=7)\n",
    "    print(\"submitted; status\", \"queued or running\" if rec[\"status\"] in (\"queued\", \"running\") else rec[\"status\"])\n",
    "    job = svc.result(rec[\"id\"], wait=120, poll=0.2)\n",
    "    print(job.status, job.method, job.accuracy, job.counts)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "service-job-3",
   "metadata": {},
   "source": [
    "The service's receipt names the service's key. Check it here, and compare the key with the one the service publishes:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "service-job-4",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-11-11T12:23:55.840847Z",
     "iopub.status.busy": "2026-11-11T12:23:55.840770Z",
     "iopub.status.idle": "2026-11-11T12:23:55.844234Z",
     "shell.execute_reply": "2026-11-11T12:23:55.843990Z"
    },
    "tags": [
     "service"
    ]
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "receipt valid: True | sealed by the service's key: True\n"
     ]
    }
   ],
   "source": [
    "if svc:\n",
    "    v = svc.verify(job)\n",
    "    print(\"receipt valid:\", v.valid, \"| sealed by the service's key:\", v.key == svc.describe()[\"receipt_key\"])"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "service-job-5",
   "metadata": {},
   "source": [
    "The same job run in this process gives the same result (each host gives its own word on energy and its own time):"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "service-job-6",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-11-11T12:23:55.845006Z",
     "iopub.status.busy": "2026-11-11T12:23:55.844943Z",
     "iopub.status.idle": "2026-11-11T12:23:55.847337Z",
     "shell.execute_reply": "2026-11-11T12:23:55.847115Z"
    },
    "tags": [
     "service"
    ]
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "the same result here and there: False\n"
     ]
    }
   ],
   "source": [
    "if svc:\n",
    "    here = wq.run(bell, shots=1000, seed=7, key=wq.Key.demo())\n",
    "    drop = (\"elapsed_ms\", \"energy\", \"receipt\")\n",
    "    same = {k: v for k, v in job.result.items() if k not in drop} == {k: v for k, v in here.result.items() if k not in drop}\n",
    "    print(\"the same result here and there:\", same)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "service-job-7",
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-11-11T12:23:55.848187Z",
     "iopub.status.busy": "2026-11-11T12:23:55.848125Z",
     "iopub.status.idle": "2026-11-11T12:23:55.880910Z",
     "shell.execute_reply": "2026-11-11T12:23:55.880548Z"
    },
    "tags": [
     "service"
    ]
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "cancelled: True\n"
     ]
    }
   ],
   "source": [
    "if svc:\n",
    "    long = \"OPENQASM 3.0; qubit[20] q;\\n\" + \"rx(0.3) q[0];\\ncx q[0], q[19];\\n\" * 3000\n",
    "    rec = svc.submit(long, observables=[\"Z19\"], method=\"statevector\")\n",
    "    print(\"cancelled:\", svc.cancel(rec[\"id\"])[\"status\"] == \"cancelled\")"
   ]
  }
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