#!/usr/bin/env bash
# scripts/manual/run_upstream_mirrored_av_sync.sh
# Manual: full mirrored upstream A/V sync probe.
#
# This probe intentionally uses the normal lesavka-client capture path as the
# sender. A local browser stimulus is captured by the real webcam and real mic,
# Lesavka relays those live captures to Theia, and a Tethys browser records the
# Lesavka UVC/UAC devices via getUserMedia before analysis.

set -euo pipefail

SCRIPT_DIR="$(cd -- "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
REPO_ROOT="$(cd -- "${SCRIPT_DIR}/../.." >/dev/null 2>&1 && pwd)"

LESAVKA_SERVER_ADDR=${LESAVKA_SERVER_ADDR:-auto}
LESAVKA_SERVER_HOST=${LESAVKA_SERVER_HOST:-theia}
LESAVKA_SERVER_SCHEME=${LESAVKA_SERVER_SCHEME:-https}
LESAVKA_SERVER_PORT=${LESAVKA_SERVER_PORT:-50051}
LESAVKA_TLS_DOMAIN=${LESAVKA_TLS_DOMAIN:-lesavka-server}
PROBE_DURATION_SECONDS=${PROBE_DURATION_SECONDS:-20}
PROBE_WARMUP_SECONDS=${PROBE_WARMUP_SECONDS:-4}
PROBE_PULSE_PERIOD_MS=${PROBE_PULSE_PERIOD_MS:-1000}
PROBE_PULSE_WIDTH_MS=${PROBE_PULSE_WIDTH_MS:-120}
PROBE_MARKER_TICK_PERIOD=${PROBE_MARKER_TICK_PERIOD:-5}
PROBE_EVENT_WIDTH_CODES=${PROBE_EVENT_WIDTH_CODES:-1,2,1,3,2,4,1,1,3,1,4,2,1,2,3,4,1,3,2,2,4,1,2,4,3,1,1,4,2,3,1,2}
LESAVKA_SYNC_CALIBRATION_SEGMENTS_SET=${LESAVKA_SYNC_CALIBRATION_SEGMENTS+x}
LESAVKA_SYNC_ADAPTIVE_CALIBRATION=${LESAVKA_SYNC_ADAPTIVE_CALIBRATION:-0}
LESAVKA_SYNC_APPLY_CALIBRATION=${LESAVKA_SYNC_APPLY_CALIBRATION:-0}
LESAVKA_SYNC_SAVE_CALIBRATION=${LESAVKA_SYNC_SAVE_CALIBRATION:-0}
LESAVKA_SYNC_CALIBRATION_TARGET=${LESAVKA_SYNC_CALIBRATION_TARGET:-video}
LESAVKA_SYNC_CALIBRATION_SEGMENTS=${LESAVKA_SYNC_CALIBRATION_SEGMENTS:-1}
LESAVKA_SYNC_CONTINUOUS_BROWSER=${LESAVKA_SYNC_CONTINUOUS_BROWSER:-${LESAVKA_SYNC_ADAPTIVE_CALIBRATION}}
LESAVKA_SYNC_CONTINUE_ON_ANALYSIS_FAILURE=${LESAVKA_SYNC_CONTINUE_ON_ANALYSIS_FAILURE:-${LESAVKA_SYNC_ADAPTIVE_CALIBRATION}}
LESAVKA_SYNC_SEGMENT_SETTLE_SECONDS=${LESAVKA_SYNC_SEGMENT_SETTLE_SECONDS:-3}
LESAVKA_SYNC_PROVISIONAL_CALIBRATION=${LESAVKA_SYNC_PROVISIONAL_CALIBRATION:-${LESAVKA_SYNC_ADAPTIVE_CALIBRATION}}
LESAVKA_SYNC_PROVISIONAL_MIN_PAIRS=${LESAVKA_SYNC_PROVISIONAL_MIN_PAIRS:-3}
LESAVKA_SYNC_PROVISIONAL_MAX_P95_MS=${LESAVKA_SYNC_PROVISIONAL_MAX_P95_MS:-350}
LESAVKA_SYNC_PROVISIONAL_MAX_DRIFT_MS=${LESAVKA_SYNC_PROVISIONAL_MAX_DRIFT_MS:-250}
LESAVKA_SYNC_PROVISIONAL_GAIN=${LESAVKA_SYNC_PROVISIONAL_GAIN:-0.5}
LESAVKA_SYNC_PROVISIONAL_MAX_STEP_US=${LESAVKA_SYNC_PROVISIONAL_MAX_STEP_US:-150000}
STIMULUS_PORT=${STIMULUS_PORT:-18444}
STIMULUS_SETTLE_SECONDS=${STIMULUS_SETTLE_SECONDS:-10}
LOCAL_OUTPUT_DIR=${LOCAL_OUTPUT_DIR:-"${REPO_ROOT}/tmp"}
SSH_OPTS=${SSH_OPTS:-"-o BatchMode=yes -o ConnectTimeout=5"}
LOCAL_BROWSER=${LOCAL_BROWSER:-firefox}

mkdir -p "${LOCAL_OUTPUT_DIR}"
STAMP="$(date +%Y%m%d-%H%M%S)"
ARTIFACT_DIR="${LOCAL_OUTPUT_DIR%/}/lesavka-mirrored-av-sync-${STAMP}"
mkdir -p "${ARTIFACT_DIR}"
STIMULUS_STATUS="${ARTIFACT_DIR}/stimulus-status.json"
STIMULUS_PROFILE="${ARTIFACT_DIR}/stimulus-firefox-profile"
CLIENT_LOG="${ARTIFACT_DIR}/lesavka-client.log"
MEDIA_CONTROL="${ARTIFACT_DIR}/media.control"
RESOLVED_LESAVKA_SERVER_ADDR=""
SERVER_TUNNEL_PID=""
STIMULUS_PID=""
STIMULUS_BROWSER_PID=""
CLIENT_PID=""

if [[ "${LESAVKA_SYNC_ADAPTIVE_CALIBRATION}" == "1" && -z "${LESAVKA_SYNC_CALIBRATION_SEGMENTS_SET}" ]]; then
  LESAVKA_SYNC_CALIBRATION_SEGMENTS=4
fi

if ! [[ "${LESAVKA_SYNC_CALIBRATION_SEGMENTS}" =~ ^[1-9][0-9]*$ ]]; then
  echo "LESAVKA_SYNC_CALIBRATION_SEGMENTS must be a positive integer" >&2
  exit 2
fi

cleanup() {
  set +e
  [[ -n "${CLIENT_PID}" ]] && kill "${CLIENT_PID}" >/dev/null 2>&1
  [[ -n "${STIMULUS_BROWSER_PID}" ]] && kill "${STIMULUS_BROWSER_PID}" >/dev/null 2>&1
  [[ -n "${STIMULUS_PID}" ]] && kill "${STIMULUS_PID}" >/dev/null 2>&1
  [[ -n "${SERVER_TUNNEL_PID}" ]] && kill "${SERVER_TUNNEL_PID}" >/dev/null 2>&1
}
trap cleanup EXIT

pick_local_port() {
  python3 - <<'PY'
import socket
with socket.socket() as s:
    s.bind(('127.0.0.1', 0))
    print(s.getsockname()[1])
PY
}

wait_for_url() {
  local url=$1
  local timeout_seconds=$2
  local deadline=$(( $(date +%s) + timeout_seconds ))
  until curl -fsS "${url}" >/dev/null 2>&1; do
    if (( $(date +%s) >= deadline )); then
      echo "Timed out waiting for ${url}" >&2
      return 1
    fi
    sleep 0.2
  done
}

wait_for_tcp() {
  local host=$1
  local port=$2
  local timeout_seconds=$3
  python3 - "$host" "$port" "$timeout_seconds" <<'PY'
import socket
import sys
import time

host = sys.argv[1]
port = int(sys.argv[2])
deadline = time.monotonic() + float(sys.argv[3])
last_error = None
while time.monotonic() < deadline:
    try:
        with socket.create_connection((host, port), timeout=0.5):
            sys.exit(0)
    except OSError as exc:
        last_error = exc
        time.sleep(0.2)

print(f"Timed out waiting for TCP {host}:{port}: {last_error}", file=sys.stderr)
sys.exit(1)
PY
}

wait_for_stimulus_page_ready() {
  local timeout_seconds=$1
  local deadline=$(( $(date +%s) + timeout_seconds ))
  local status_json=""
  until status_json="$(curl -fsS "http://127.0.0.1:${STIMULUS_PORT}/status" 2>/dev/null)"; do
    if (( $(date +%s) >= deadline )); then
      echo "Timed out waiting for local stimulus status endpoint" >&2
      return 1
    fi
    sleep 0.2
  done
  while true; do
    if STATUS_JSON="${status_json}" python3 - <<'PY'
import json
import os
import sys

status = json.loads(os.environ["STATUS_JSON"])
sys.exit(0 if status.get("ready") and status.get("page_message") != "booting" else 1)
PY
    then
      return 0
    fi
    if (( $(date +%s) >= deadline )); then
      echo "local stimulus page did not become ready before timeout" >&2
      echo "last stimulus status: ${status_json}" >&2
      echo "stimulus server log: ${ARTIFACT_DIR}/stimulus-server.log" >&2
      echo "stimulus browser log: ${ARTIFACT_DIR}/stimulus-browser.log" >&2
      return 1
    fi
    sleep 0.5
    status_json="$(curl -fsS "http://127.0.0.1:${STIMULUS_PORT}/status" 2>/dev/null || true)"
  done
}

start_server_tunnel_if_needed() {
  if [[ "${LESAVKA_SERVER_ADDR}" != "auto" ]]; then
    RESOLVED_LESAVKA_SERVER_ADDR="${LESAVKA_SERVER_ADDR}"
    return
  fi
  local port
  port="$(pick_local_port)"
  echo "==> opening SSH tunnel to ${LESAVKA_SERVER_HOST}:127.0.0.1:${LESAVKA_SERVER_PORT} on localhost:${port}"
  ssh ${SSH_OPTS} -N \
    -o ExitOnForwardFailure=yes \
    -L "127.0.0.1:${port}:127.0.0.1:${LESAVKA_SERVER_PORT}" \
    "${LESAVKA_SERVER_HOST}" >/tmp/lesavka-mirrored-sync-tunnel.log 2>&1 &
  SERVER_TUNNEL_PID=$!
  wait_for_tcp "127.0.0.1" "${port}" 5
  RESOLVED_LESAVKA_SERVER_ADDR="${LESAVKA_SERVER_SCHEME}://127.0.0.1:${port}"
  echo "==> resolved Lesavka server addr: ${RESOLVED_LESAVKA_SERVER_ADDR}"
  echo "   ↪ tunneled to ${LESAVKA_SERVER_HOST}:127.0.0.1:${LESAVKA_SERVER_PORT}"
}

print_lesavka_versions() {
  echo "==> Lesavka versions under test"
  if [[ ! -x "${REPO_ROOT}/target/debug/lesavka-relayctl" ]]; then
    (cd "${REPO_ROOT}" && cargo build -p lesavka_client --bin lesavka-relayctl >/dev/null)
  fi
  local version_output
  if ! version_output="$(
    LESAVKA_TLS_DOMAIN="${LESAVKA_TLS_DOMAIN}" \
      "${REPO_ROOT}/target/debug/lesavka-relayctl" \
      --server "${RESOLVED_LESAVKA_SERVER_ADDR}" \
      version 2>&1
  )"; then
    echo "failed to query Lesavka versions through ${RESOLVED_LESAVKA_SERVER_ADDR}" >&2
    echo "${version_output}" >&2
    return 1
  fi
  if ! grep -q "^client_version=" <<<"${version_output}"; then
    echo "Lesavka version query did not report client_version=; refusing to run an unattributed probe" >&2
    echo "${version_output}" >&2
    return 1
  fi
  if grep -q "^client_full_version=" <<<"${version_output}"; then
    echo "Lesavka version query reported a combined version+revision; refusing ambiguous probe attribution" >&2
    echo "${version_output}" >&2
    return 1
  fi
  if ! grep -q "^client_revision=" <<<"${version_output}"; then
    echo "Lesavka version query did not report client_revision=; refusing to run an unattributed probe" >&2
    echo "${version_output}" >&2
    return 1
  fi
  if ! grep -q "^server_version=" <<<"${version_output}"; then
    echo "Lesavka version query did not report server_version=; refusing to run an unattributed probe" >&2
    echo "${version_output}" >&2
    return 1
  fi
  if ! grep -q "^server_revision=" <<<"${version_output}"; then
    echo "Lesavka version query did not report server_revision=; refusing to run an unattributed probe" >&2
    echo "${version_output}" >&2
    return 1
  fi
  while IFS= read -r line; do
    [[ -n "${line}" ]] && echo "   ↪ ${line}"
  done <<<"${version_output}"
}

print_upstream_sync_state() {
  local label="$1"
  local output_path="${2:-}"
  echo "==> upstream sync planner state (${label})"
  if [[ ! -x "${REPO_ROOT}/target/debug/lesavka-relayctl" ]]; then
    (cd "${REPO_ROOT}" && cargo build -p lesavka_client --bin lesavka-relayctl >/dev/null)
  fi
  local sync_output
  if ! sync_output="$(
    LESAVKA_TLS_DOMAIN="${LESAVKA_TLS_DOMAIN}" \
      "${REPO_ROOT}/target/debug/lesavka-relayctl" \
      --server "${RESOLVED_LESAVKA_SERVER_ADDR}" \
      upstream-sync 2>&1
  )"; then
    echo "   ↪ planner query failed: ${sync_output}"
    [[ -n "${output_path}" ]] && printf '%s\n' "${sync_output}" >"${output_path}"
    return 0
  fi
  [[ -n "${output_path}" ]] && printf '%s\n' "${sync_output}" >"${output_path}"
  while IFS= read -r line; do
    [[ -n "${line}" ]] && echo "   ↪ ${line}"
  done <<<"${sync_output}"
}

print_upstream_calibration_state() {
  local label="$1"
  local output_path="${2:-}"
  echo "==> upstream calibration state (${label})"
  if [[ ! -x "${REPO_ROOT}/target/debug/lesavka-relayctl" ]]; then
    (cd "${REPO_ROOT}" && cargo build -p lesavka_client --bin lesavka-relayctl >/dev/null)
  fi
  local calibration_output
  if ! calibration_output="$(
    LESAVKA_TLS_DOMAIN="${LESAVKA_TLS_DOMAIN}" \
      "${REPO_ROOT}/target/debug/lesavka-relayctl" \
      --server "${RESOLVED_LESAVKA_SERVER_ADDR}" \
      calibration 2>&1
  )"; then
    echo "   ↪ calibration query failed: ${calibration_output}"
    [[ -n "${output_path}" ]] && printf '%s\n' "${calibration_output}" >"${output_path}"
    return 0
  fi
  [[ -n "${output_path}" ]] && printf '%s\n' "${calibration_output}" >"${output_path}"
  while IFS= read -r line; do
    [[ -n "${line}" ]] && echo "   ↪ ${line}"
  done <<<"${calibration_output}"
}

latest_report_json() {
  local report_root="${1:-${ARTIFACT_DIR}}"
  find "${report_root}" -mindepth 2 -maxdepth 2 -type f -name report.json -printf '%T@ %p\n' 2>/dev/null \
    | sort -n \
    | tail -n 1 \
    | cut -d' ' -f2-
}

maybe_apply_probe_calibration() {
  local report_root="${1:-${ARTIFACT_DIR}}"
  local label="${2:-mirrored run}"
  local report_json
  report_json="$(latest_report_json "${report_root}")"
  echo "==> probe calibration decision (${label})"
  if [[ -z "${report_json}" || ! -f "${report_json}" ]]; then
    echo "   ↪ report_json=missing"
    echo "   ↪ calibration apply skipped: analyzer report was not produced"
    return 0
  fi

  local summary
  if ! summary="$(python3 - "${report_json}" "${LESAVKA_SYNC_CALIBRATION_TARGET}" <<'PY'
import json
import math
import os
import shlex
import sys

report_path = sys.argv[1]
target = sys.argv[2].strip().lower()
with open(report_path, "r", encoding="utf-8") as handle:
    report = json.load(handle)

cal = report.get("calibration", {})
verdict = report.get("verdict", {})
if target not in {"audio", "video"}:
    target = "video"

def env_bool(name, default=False):
    raw = os.environ.get(name)
    if raw is None:
        return default
    return raw.strip().lower() in {"1", "true", "yes", "on"}

def env_int(name, default):
    try:
        return int(os.environ.get(name, str(default)))
    except ValueError:
        return default

def env_float(name, default):
    try:
        return float(os.environ.get(name, str(default)))
    except ValueError:
        return default

def as_float(value, default=0.0):
    try:
        parsed = float(value)
    except (TypeError, ValueError):
        return default
    return parsed if math.isfinite(parsed) else default

def clamp(value, limit):
    limit = abs(int(limit))
    return max(-limit, min(limit, int(round(value))))

ready = bool(cal.get("ready"))
paired_pulses = int(report.get("paired_event_count", 0) or 0)
median_skew_ms = as_float(report.get("median_skew_ms", 0.0))
p95_abs_skew_ms = as_float(verdict.get("p95_abs_skew_ms", 0.0))
drift_ms = as_float(report.get("drift_ms", 0.0))

provisional_enabled = env_bool("LESAVKA_SYNC_PROVISIONAL_CALIBRATION", False)
provisional_min_pairs = env_int("LESAVKA_SYNC_PROVISIONAL_MIN_PAIRS", 3)
provisional_max_p95_ms = env_float("LESAVKA_SYNC_PROVISIONAL_MAX_P95_MS", 350.0)
provisional_max_drift_ms = env_float("LESAVKA_SYNC_PROVISIONAL_MAX_DRIFT_MS", 250.0)
provisional_gain = env_float("LESAVKA_SYNC_PROVISIONAL_GAIN", 0.5)
provisional_max_step_us = env_int("LESAVKA_SYNC_PROVISIONAL_MAX_STEP_US", 150000)

ready_audio_recommendation = int(cal.get("recommended_audio_offset_adjust_us") or 0)
ready_video_recommendation = int(cal.get("recommended_video_offset_adjust_us") or 0)
provisional_audio_recommendation = int(round(-median_skew_ms * 1000.0))
provisional_video_recommendation = int(round(median_skew_ms * 1000.0))

audio_recommendation = ready_audio_recommendation
video_recommendation = ready_video_recommendation
audio_delta = audio_recommendation if target == "audio" else 0
video_delta = video_recommendation if target == "video" else 0
decision_mode = "ready" if ready else "refused"
decision_note = "analyzer marked this report calibration-ready" if ready else "analyzer did not mark this report calibration-ready"

if not ready and provisional_enabled:
    refusal_reasons = []
    if paired_pulses < provisional_min_pairs:
        refusal_reasons.append(f"paired_pulses {paired_pulses} < {provisional_min_pairs}")
    if p95_abs_skew_ms > provisional_max_p95_ms:
        refusal_reasons.append(f"p95_abs_skew_ms {p95_abs_skew_ms:.1f} > {provisional_max_p95_ms:.1f}")
    if abs(drift_ms) > provisional_max_drift_ms:
        refusal_reasons.append(f"abs(drift_ms) {abs(drift_ms):.1f} > {provisional_max_drift_ms:.1f}")

    if refusal_reasons:
        decision_note = "provisional calibration refused: " + "; ".join(refusal_reasons)
    else:
        audio_recommendation = provisional_audio_recommendation
        video_recommendation = provisional_video_recommendation
        if target == "audio":
            audio_delta = clamp(audio_recommendation * provisional_gain, provisional_max_step_us)
            video_delta = 0
        else:
            audio_delta = 0
            video_delta = clamp(video_recommendation * provisional_gain, provisional_max_step_us)
        if audio_delta == 0 and video_delta == 0:
            decision_note = "provisional calibration skipped: rounded correction was zero"
        else:
            decision_mode = "provisional"
            decision_note = (
                "bounded provisional correction from median skew; "
                "not safe to save until a confirming ready report"
            )

fields = {
    "report_json": report_path,
    "calibration_ready": str(ready).lower(),
    "calibration_target": target,
    "calibration_decision_mode": decision_mode,
    "calibration_decision_note": decision_note,
    "calibration_audio_recommendation_us": audio_recommendation,
    "calibration_video_recommendation_us": video_recommendation,
    "calibration_ready_audio_recommendation_us": ready_audio_recommendation,
    "calibration_ready_video_recommendation_us": ready_video_recommendation,
    "calibration_provisional_audio_recommendation_us": provisional_audio_recommendation,
    "calibration_provisional_video_recommendation_us": provisional_video_recommendation,
    "calibration_apply_audio_delta_us": audio_delta,
    "calibration_apply_video_delta_us": video_delta,
    "calibration_note": cal.get("note", ""),
    "provisional_calibration_enabled": str(provisional_enabled).lower(),
    "provisional_min_pairs": provisional_min_pairs,
    "provisional_max_p95_ms": f"{provisional_max_p95_ms:.1f}",
    "provisional_max_drift_ms": f"{provisional_max_drift_ms:.1f}",
    "provisional_gain": f"{provisional_gain:.3f}",
    "provisional_max_step_us": provisional_max_step_us,
    "verdict_status": verdict.get("status", ""),
    "paired_pulses": paired_pulses,
    "median_skew_ms": f"{median_skew_ms:+.1f}",
    "p95_abs_skew_ms": f"{p95_abs_skew_ms:.1f}",
    "drift_ms": f"{drift_ms:+.1f}",
}
for key, value in fields.items():
    print(f"{key}={shlex.quote(str(value))}")
PY
  )"; then
    echo "   ↪ failed to parse ${report_json}; calibration apply skipped" >&2
    return 0
  fi

  eval "${summary}"
  printf '%s\n' "${summary}" >"${report_root}/calibration-decision.env"
  echo "   ↪ report_json=${report_json}"
  echo "   ↪ verdict_status=${verdict_status}"
  echo "   ↪ paired_pulses=${paired_pulses}"
  echo "   ↪ median_skew_ms=${median_skew_ms}"
  echo "   ↪ p95_abs_skew_ms=${p95_abs_skew_ms}"
  echo "   ↪ drift_ms=${drift_ms}"
  echo "   ↪ calibration_ready=${calibration_ready}"
  echo "   ↪ calibration_target=${calibration_target}"
  echo "   ↪ calibration_decision_mode=${calibration_decision_mode}"
  echo "   ↪ recommended_audio_offset_adjust_us=${calibration_audio_recommendation_us}"
  echo "   ↪ recommended_video_offset_adjust_us=${calibration_video_recommendation_us}"
  echo "   ↪ ready_audio_offset_adjust_us=${calibration_ready_audio_recommendation_us}"
  echo "   ↪ ready_video_offset_adjust_us=${calibration_ready_video_recommendation_us}"
  echo "   ↪ provisional_audio_offset_adjust_us=${calibration_provisional_audio_recommendation_us}"
  echo "   ↪ provisional_video_offset_adjust_us=${calibration_provisional_video_recommendation_us}"
  echo "   ↪ provisional_calibration_enabled=${provisional_calibration_enabled}"
  echo "   ↪ provisional_min_pairs=${provisional_min_pairs}"
  echo "   ↪ provisional_max_p95_ms=${provisional_max_p95_ms}"
  echo "   ↪ provisional_max_drift_ms=${provisional_max_drift_ms}"
  echo "   ↪ provisional_gain=${provisional_gain}"
  echo "   ↪ provisional_max_step_us=${provisional_max_step_us}"
  echo "   ↪ calibration_note=${calibration_note}"
  echo "   ↪ calibration_decision_note=${calibration_decision_note}"

  if [[ "${LESAVKA_SYNC_APPLY_CALIBRATION}" != "1" ]]; then
    echo "   ↪ calibration apply disabled; set LESAVKA_SYNC_APPLY_CALIBRATION=1 to apply ready or provisional recommendations"
    return 0
  fi
  if [[ "${calibration_decision_mode}" == "refused" ]]; then
    echo "   ↪ calibration apply refused: ${calibration_decision_note}"
    return 0
  fi
  if [[ "${calibration_apply_audio_delta_us}" == "0" && "${calibration_apply_video_delta_us}" == "0" ]]; then
    echo "   ↪ calibration apply skipped: recommended delta is already zero"
    return 0
  fi

  local note="mirrored probe ${STAMP} ${label}: mode=${calibration_decision_mode}, target=${calibration_target}, median=${median_skew_ms}ms, p95=${p95_abs_skew_ms}ms, pairs=${paired_pulses}"
  echo "   ↪ applying calibration: audio_delta_us=${calibration_apply_audio_delta_us}, video_delta_us=${calibration_apply_video_delta_us}"
  LESAVKA_TLS_DOMAIN="${LESAVKA_TLS_DOMAIN}" \
    "${REPO_ROOT}/target/debug/lesavka-relayctl" \
    --server "${RESOLVED_LESAVKA_SERVER_ADDR}" \
    calibrate "${calibration_apply_audio_delta_us}" "${calibration_apply_video_delta_us}" "${note}" \
    | sed 's/^/   ↪ /'

  if [[ "${LESAVKA_SYNC_SAVE_CALIBRATION}" == "1" && "${calibration_decision_mode}" == "ready" ]]; then
    echo "   ↪ saving active calibration as site default"
    LESAVKA_TLS_DOMAIN="${LESAVKA_TLS_DOMAIN}" \
      "${REPO_ROOT}/target/debug/lesavka-relayctl" \
      --server "${RESOLVED_LESAVKA_SERVER_ADDR}" \
      calibration-save-default \
      | sed 's/^/   ↪ /'
  elif [[ "${LESAVKA_SYNC_SAVE_CALIBRATION}" == "1" ]]; then
    echo "   ↪ provisional calibration not saved; require a confirming ready rerun before saving defaults"
  else
    echo "   ↪ active calibration not saved; set LESAVKA_SYNC_SAVE_CALIBRATION=1 after a confirming rerun"
  fi
}

start_local_stimulus() {
  echo "==> starting local A/V stimulus server"
  python3 "${REPO_ROOT}/scripts/manual/local_av_stimulus.py" \
    --port "${STIMULUS_PORT}" \
    --status "${STIMULUS_STATUS}" \
    --duration-seconds "${PROBE_DURATION_SECONDS}" \
    --warmup-seconds "${PROBE_WARMUP_SECONDS}" \
    --pulse-period-ms "${PROBE_PULSE_PERIOD_MS}" \
    --pulse-width-ms "${PROBE_PULSE_WIDTH_MS}" \
    --marker-tick-period "${PROBE_MARKER_TICK_PERIOD}" \
    --event-width-codes "${PROBE_EVENT_WIDTH_CODES}" \
    >"${ARTIFACT_DIR}/stimulus-server.log" 2>&1 &
  STIMULUS_PID=$!
  wait_for_url "http://127.0.0.1:${STIMULUS_PORT}/status" 10

  mkdir -p "${STIMULUS_PROFILE}"
  cat >"${STIMULUS_PROFILE}/user.js" <<'PREFS'
user_pref("media.autoplay.default", 0);
user_pref("media.autoplay.blocking_policy", 0);
user_pref("toolkit.telemetry.reportingpolicy.firstRun", false);
user_pref("browser.shell.checkDefaultBrowser", false);
user_pref("browser.tabs.warnOnClose", false);
user_pref("browser.startup.page", 1);
user_pref("browser.aboutwelcome.enabled", false);
PREFS
  printf 'user_pref("browser.startup.homepage", "http://127.0.0.1:%s/");\n' "${STIMULUS_PORT}" >>"${STIMULUS_PROFILE}/user.js"
  echo "==> opening local stimulus browser"
  "${LOCAL_BROWSER}" --new-instance --no-remote --profile "${STIMULUS_PROFILE}" \
    "http://127.0.0.1:${STIMULUS_PORT}/" \
    >"${ARTIFACT_DIR}/stimulus-browser.log" 2>&1 &
  STIMULUS_BROWSER_PID=$!
  wait_for_stimulus_page_ready 15

  echo "==> position check"
  echo "    Point the real webcam at the stimulus window and keep the selected microphone hearing the tone."
  echo "    Waiting ${STIMULUS_SETTLE_SECONDS}s before starting the mirrored capture."
  sleep "${STIMULUS_SETTLE_SECONDS}"
}

start_real_lesavka_client() {
  echo "camera=1 microphone=1 audio=0 $(date +%s%N)" >"${MEDIA_CONTROL}"
  echo "==> starting real headless lesavka-client sender"
  (
    cd "${REPO_ROOT}"
    LESAVKA_HEADLESS=1 \
    LESAVKA_SERVER_ADDR="${RESOLVED_LESAVKA_SERVER_ADDR}" \
    LESAVKA_TLS_DOMAIN="${LESAVKA_TLS_DOMAIN}" \
    LESAVKA_MEDIA_CONTROL="${MEDIA_CONTROL}" \
    LESAVKA_REQUIRE_EXPLICIT_MEDIA_SOURCES="${LESAVKA_REQUIRE_EXPLICIT_MEDIA_SOURCES:-1}" \
    LESAVKA_UPSTREAM_TIMING_TRACE="${LESAVKA_UPSTREAM_TIMING_TRACE:-1}" \
    RUST_LOG="${RUST_LOG:-warn,lesavka_client::app=info,lesavka_client::input::camera=info,lesavka_client::input::microphone=info}" \
    "${REPO_ROOT}/target/debug/lesavka-client" --no-launcher --server "${RESOLVED_LESAVKA_SERVER_ADDR}"
  ) >"${CLIENT_LOG}" 2>&1 &
  CLIENT_PID=$!
  sleep 4
  if ! kill -0 "${CLIENT_PID}" >/dev/null 2>&1; then
    echo "lesavka-client exited before mirrored probe could start; see ${CLIENT_LOG}" >&2
    exit 1
  fi
}

run_browser_capture_with_real_driver() {
  local segment_label="$1"
  local segment_output_dir="$2"
  local segment_index="${3:-1}"
  local record_seconds=$((PROBE_DURATION_SECONDS + 3))
  local wait_seconds=$((PROBE_DURATION_SECONDS + 2))
  local driver_command="curl -fsS -X POST http://127.0.0.1:${STIMULUS_PORT}/start >/dev/null; sleep ${wait_seconds}"
  local reuse_browser_session=0
  local analysis_required=1
  if [[ "${LESAVKA_SYNC_CONTINUOUS_BROWSER}" == "1" && "${segment_index}" != "1" ]]; then
    reuse_browser_session=1
  fi
  if [[ "${LESAVKA_SYNC_CONTINUE_ON_ANALYSIS_FAILURE}" == "1" ]]; then
    analysis_required=0
  fi
  mkdir -p "${segment_output_dir}"
  echo "==> starting Tethys browser consumer and mirrored driver (${segment_label})"
  echo "   ↪ browser_consumer_reuse_session=${reuse_browser_session}"
  echo "   ↪ browser_analysis_required=${analysis_required}"
  BROWSER_RECORD_SECONDS="${record_seconds}" \
  PROBE_DURATION_SECONDS="${PROBE_DURATION_SECONDS}" \
  BROWSER_SYNC_DRIVER_COMMAND="${driver_command}" \
  BROWSER_CONSUMER_REUSE_SESSION="${reuse_browser_session}" \
  BROWSER_ANALYSIS_REQUIRED="${analysis_required}" \
  SYNC_ANALYZE_EVENT_WIDTH_CODES="${PROBE_EVENT_WIDTH_CODES}" \
  LOCAL_OUTPUT_DIR="${segment_output_dir}" \
  LESAVKA_SERVER_ADDR="${RESOLVED_LESAVKA_SERVER_ADDR}" \
  "${REPO_ROOT}/scripts/manual/run_upstream_browser_av_sync.sh"
}

run_mirrored_segments() {
  local run_status=0
  local segment
  for segment in $(seq 1 "${LESAVKA_SYNC_CALIBRATION_SEGMENTS}"); do
    local segment_label="segment ${segment}/${LESAVKA_SYNC_CALIBRATION_SEGMENTS}"
    local segment_dir="${ARTIFACT_DIR}/segment-${segment}"
    mkdir -p "${segment_dir}"
    echo "==> mirrored calibration ${segment_label}"
    print_upstream_calibration_state "before ${segment_label}" "${segment_dir}/calibration-before.env"
    print_upstream_sync_state "before ${segment_label}" "${segment_dir}/planner-before.env"
    if run_browser_capture_with_real_driver "${segment_label}" "${segment_dir}" "${segment}"; then
      maybe_apply_probe_calibration "${segment_dir}" "${segment_label}"
      print_upstream_sync_state "after ${segment_label}" "${segment_dir}/planner-after.env"
      print_upstream_calibration_state "after ${segment_label}" "${segment_dir}/calibration-after.env"
    else
      run_status=$?
      print_upstream_sync_state "after failed ${segment_label}" "${segment_dir}/planner-after-failed.env"
      print_upstream_calibration_state "after failed ${segment_label}" "${segment_dir}/calibration-after-failed.env"
      break
    fi
    if (( segment < LESAVKA_SYNC_CALIBRATION_SEGMENTS )); then
      echo "==> settling ${LESAVKA_SYNC_SEGMENT_SETTLE_SECONDS}s before next calibration segment"
      sleep "${LESAVKA_SYNC_SEGMENT_SETTLE_SECONDS}"
    fi
  done
  return "${run_status}"
}

summarize_adaptive_probe_metrics() {
  echo "==> summarizing segmented probe metrics"
  python3 - "${ARTIFACT_DIR}" "${LESAVKA_SYNC_CALIBRATION_SEGMENTS}" <<'PY'
import csv
import json
import os
import sys
from pathlib import Path

root = Path(sys.argv[1])
segment_count = int(sys.argv[2])


def read_env(path):
    values = {}
    if not path.exists():
        return values
    for raw in path.read_text(encoding="utf-8").splitlines():
        if not raw or "=" not in raw:
            continue
        key, value = raw.split("=", 1)
        values[key] = value
    return values


def latest_report(segment_dir):
    reports = list(segment_dir.glob("*/report.json"))
    if not reports:
        return None
    return max(reports, key=lambda path: path.stat().st_mtime)


def latest_analysis_failure(segment_dir):
    failures = list(segment_dir.glob("*/analysis-failure.json"))
    if not failures:
        return None
    return max(failures, key=lambda path: path.stat().st_mtime)


def as_float(value):
    if value is None or value in {"", "pending"}:
        return None
    try:
        return float(value)
    except ValueError:
        return None


def range_for(rows, key):
    values = [row[key] for row in rows if isinstance(row.get(key), (int, float))]
    if not values:
        return None
    return {
        "min": round(min(values), 3),
        "max": round(max(values), 3),
        "mean": round(sum(values) / len(values), 3),
    }


rows = []
for segment in range(1, segment_count + 1):
    segment_dir = root / f"segment-{segment}"
    report_path = latest_report(segment_dir)
    report = {}
    verdict = {}
    calibration = {}
    if report_path is not None:
        report = json.loads(report_path.read_text(encoding="utf-8"))
        verdict = report.get("verdict", {})
        calibration = report.get("calibration", {})
    failure_path = latest_analysis_failure(segment_dir)
    failure = {}
    if failure_path is not None:
        failure = json.loads(failure_path.read_text(encoding="utf-8"))

    planner_before = read_env(segment_dir / "planner-before.env")
    planner_after = read_env(segment_dir / "planner-after.env")
    calibration_before = read_env(segment_dir / "calibration-before.env")
    calibration_after = read_env(segment_dir / "calibration-after.env")
    decision = read_env(segment_dir / "calibration-decision.env")

    row = {
        "segment": segment,
        "report_json": str(report_path) if report_path else "",
        "analysis_failure_json": str(failure_path) if failure_path else "",
        "analysis_failure_reason": failure.get("reason", ""),
        "probe_status": verdict.get("status", failure.get("status", "missing")),
        "probe_passed": bool(verdict.get("passed", False)),
        "probe_p95_abs_skew_ms": as_float(str(verdict.get("p95_abs_skew_ms", ""))),
        "probe_max_abs_skew_ms": as_float(str(verdict.get("max_abs_skew_ms", ""))),
        "probe_median_skew_ms": as_float(str(report.get("median_skew_ms", ""))),
        "probe_mean_skew_ms": as_float(str(report.get("mean_skew_ms", ""))),
        "probe_drift_ms": as_float(str(report.get("drift_ms", ""))),
        "probe_paired_pulses": report.get("paired_event_count", failure.get("paired_pulses", 0)),
        "probe_activity_start_delta_ms": as_float(str(report.get("activity_start_delta_ms", failure.get("raw_activity_delta_ms", "")))),
        "analysis_raw_first_video_activity_s": as_float(str(failure.get("raw_first_video_activity_s", ""))),
        "analysis_raw_first_audio_activity_s": as_float(str(failure.get("raw_first_audio_activity_s", ""))),
        "calibration_ready": bool(calibration.get("ready", False)),
        "calibration_note": calibration.get("note", ""),
        "decision_mode": decision.get("calibration_decision_mode", ""),
        "decision_note": decision.get("calibration_decision_note", ""),
        "decision_video_delta_us": as_float(decision.get("calibration_apply_video_delta_us")),
        "decision_audio_delta_us": as_float(decision.get("calibration_apply_audio_delta_us")),
        "decision_provisional_video_recommendation_us": as_float(decision.get("calibration_provisional_video_recommendation_us")),
        "decision_provisional_audio_recommendation_us": as_float(decision.get("calibration_provisional_audio_recommendation_us")),
        "planner_phase_before": planner_before.get("planner_phase", ""),
        "planner_phase_after": planner_after.get("planner_phase", ""),
        "planner_live_lag_ms_before": as_float(planner_before.get("planner_live_lag_ms")),
        "planner_live_lag_ms_after": as_float(planner_after.get("planner_live_lag_ms")),
        "planner_skew_ms_before": as_float(planner_before.get("planner_skew_ms")),
        "planner_skew_ms_after": as_float(planner_after.get("planner_skew_ms")),
        "planner_video_freezes_before": as_float(planner_before.get("planner_video_freezes")),
        "planner_video_freezes_after": as_float(planner_after.get("planner_video_freezes")),
        "planner_freshness_reanchors_before": as_float(planner_before.get("planner_freshness_reanchors")),
        "planner_freshness_reanchors_after": as_float(planner_after.get("planner_freshness_reanchors")),
        "active_audio_offset_us_before": as_float(calibration_before.get("calibration_active_audio_offset_us")),
        "active_audio_offset_us_after": as_float(calibration_after.get("calibration_active_audio_offset_us")),
        "active_video_offset_us_before": as_float(calibration_before.get("calibration_active_video_offset_us")),
        "active_video_offset_us_after": as_float(calibration_after.get("calibration_active_video_offset_us")),
    }
    rows.append(row)

csv_path = root / "segment-metrics.csv"
jsonl_path = root / "segment-metrics.jsonl"
fieldnames = list(rows[0].keys()) if rows else ["segment"]
with csv_path.open("w", newline="", encoding="utf-8") as handle:
    writer = csv.DictWriter(handle, fieldnames=fieldnames)
    writer.writeheader()
    writer.writerows(rows)
with jsonl_path.open("w", encoding="utf-8") as handle:
    for row in rows:
        handle.write(json.dumps(row, sort_keys=True) + "\n")

good_rows = [row for row in rows if row.get("probe_passed")]
target_path = root / "blind-targets.json"
if good_rows:
    target = {
        "ready": True,
        "source": "probe-passing segmented mirrored run",
        "good_segments": [row["segment"] for row in good_rows],
        "planner_live_lag_ms_after": range_for(good_rows, "planner_live_lag_ms_after"),
        "planner_skew_ms_after": range_for(good_rows, "planner_skew_ms_after"),
        "active_audio_offset_us_after": range_for(good_rows, "active_audio_offset_us_after"),
        "active_video_offset_us_after": range_for(good_rows, "active_video_offset_us_after"),
        "probe_p95_abs_skew_ms": range_for(good_rows, "probe_p95_abs_skew_ms"),
        "probe_median_skew_ms": range_for(good_rows, "probe_median_skew_ms"),
    }
else:
    sortable = [
        row for row in rows
        if isinstance(row.get("probe_p95_abs_skew_ms"), (int, float))
    ]
    best = min(sortable, key=lambda row: row["probe_p95_abs_skew_ms"], default=None)
    target = {
        "ready": False,
        "reason": "no segment produced a passing probe verdict; refusing to invent blind targets",
        "segments_seen": len(rows),
        "best_segment": best["segment"] if best else None,
        "best_probe_status": best["probe_status"] if best else "missing",
        "best_probe_p95_abs_skew_ms": best["probe_p95_abs_skew_ms"] if best else None,
    }
target_path.write_text(json.dumps(target, indent=2, sort_keys=True) + "\n", encoding="utf-8")

print(f"   ↪ segment_metrics_csv={csv_path}")
print(f"   ↪ segment_metrics_jsonl={jsonl_path}")
print(f"   ↪ blind_targets_json={target_path}")
print(f"   ↪ blind_targets_ready={str(bool(target.get('ready'))).lower()}")
PY
}

echo "==> prebuilding real client and analyzer"
(
  cd "${REPO_ROOT}"
  cargo build -p lesavka_client --bin lesavka-client --bin lesavka-sync-analyze --bin lesavka-relayctl >/dev/null
)

start_server_tunnel_if_needed
print_lesavka_versions
print_upstream_calibration_state "before mirrored run" "${ARTIFACT_DIR}/calibration-before.env"
print_upstream_sync_state "before mirrored run" "${ARTIFACT_DIR}/planner-before.env"
start_local_stimulus
start_real_lesavka_client
run_status=0
run_mirrored_segments || run_status=$?
print_upstream_sync_state "after mirrored run" "${ARTIFACT_DIR}/planner-after.env"
print_upstream_calibration_state "after mirrored run" "${ARTIFACT_DIR}/calibration-after.env"
summarize_adaptive_probe_metrics

if ((run_status != 0)); then
  echo "==> mirrored probe failed"
  echo "artifact_dir: ${ARTIFACT_DIR}"
  echo "client_log: ${CLIENT_LOG}"
  echo "stimulus_status: ${STIMULUS_STATUS}"
  exit "${run_status}"
fi

echo "==> mirrored probe complete"
echo "artifact_dir: ${ARTIFACT_DIR}"
echo "client_log: ${CLIENT_LOG}"
echo "stimulus_status: ${STIMULUS_STATUS}"