#!/usr/bin/env bash
set -euo pipefail

# deploy-artifact-to-eric-turner.sh
#
# Deploy the Signal & Noise interactive HTML artifact to the eric-turner.com
# Hugo site, then force Hugo to pick up the change by touching hugo.yaml.
#
# Why touch hugo.yaml? Hugo runs as `hugo server --poll 1s` in a Docker
# bind-mount. The poll watcher detects changes in the top-level file tree
# reliably, but NEW subdirectories under static/ (added via scp after the
# server started) don't always get picked up by the watcher's in-memory
# state. The config-file watch is more reliable — touching hugo.yaml
# triggers a full rebuild, which re-reads all static/ subdirectories and
# invalidates any stale file cache.
#
# This is the durable fix for the "I scp'd the file but the live URL still
# shows the old version" problem we hit twice. Always use this script
# (or `touch hugo.yaml` after any manual scp) instead of raw scp.
#
# Usage:
#   bash scripts/deploy-artifact-to-eric-turner.sh
#   bash scripts/deploy-artifact-to-eric-turner.sh --verify
#
# Requires SSH access to root@10.13.0.254 and Hugo running in
# /mnt/user/docker/showcase.

REMOTE_HOST="root@10.13.0.254"
REMOTE_DIR="/mnt/user/docker/showcase"
REMOTE_STATIC_DIR="${REMOTE_DIR}/static/memex"
REMOTE_HUGO_CONFIG="${REMOTE_DIR}/hugo.yaml"
PUBLIC_URL="https://eric-turner.com/memex/signal-and-noise.html"

REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
LOCAL_HTML="${REPO_ROOT}/docs/artifacts/signal-and-noise.html"

VERIFY=false
while [[ $# -gt 0 ]]; do
    case "$1" in
        --verify) VERIFY=true; shift ;;
        -h|--help)
            sed -n '3,27p' "$0" | sed 's/^# \?//'
            exit 0
            ;;
        *)
            echo "Unknown option: $1" >&2
            exit 1
            ;;
    esac
done

if [[ ! -f "${LOCAL_HTML}" ]]; then
    echo "Local file not found: ${LOCAL_HTML}" >&2
    exit 1
fi

log() { printf '[%s] %s\n' "$(date '+%H:%M:%S')" "$*"; }

log "uploading $(basename "${LOCAL_HTML}") ($(wc -c < "${LOCAL_HTML}") bytes) to ${REMOTE_HOST}:${REMOTE_STATIC_DIR}/"
ssh "${REMOTE_HOST}" "mkdir -p ${REMOTE_STATIC_DIR}"
scp -q "${LOCAL_HTML}" "${REMOTE_HOST}:${REMOTE_STATIC_DIR}/signal-and-noise.html"

log "touching ${REMOTE_HUGO_CONFIG} to trigger Hugo config reload"
ssh "${REMOTE_HOST}" "touch ${REMOTE_HUGO_CONFIG}"

log "waiting 3s for Hugo to rebuild..."
sleep 3

if ${VERIFY}; then
    log "verifying live URL content..."
    live_content="$(curl -sS --max-time 10 "${PUBLIC_URL}")"

    local_title="$(grep -o '<title>[^<]*</title>' "${LOCAL_HTML}" | head -1)"
    live_title="$(echo "${live_content}" | grep -o '<title>[^<]*</title>' | head -1)"

    if [[ "${local_title}" == "${live_title}" ]]; then
        log "✓ title matches: ${live_title}"
    else
        log "✗ title mismatch!"
        log "  local: ${local_title}"
        log "  live:  ${live_title}"
        log "  Hugo may still be rebuilding. Retry in a few seconds or check ssh ${REMOTE_HOST} 'docker logs showcase-hugo-1'"
        exit 1
    fi

    # Count tab buttons — match both "tab-btn" and "tab-btn active"
    local_tabs="$(grep -cE 'class="tab-btn[^"]*".*onclick' "${LOCAL_HTML}" || true)"
    live_tabs="$(echo "${live_content}" | grep -cE 'class="tab-btn[^"]*".*onclick' || true)"
    if [[ "${local_tabs}" == "${live_tabs}" ]]; then
        log "✓ tab count matches: ${live_tabs} tabs"
    else
        log "✗ tab count mismatch: local=${local_tabs} live=${live_tabs}"
        exit 1
    fi
fi

log "deployed → ${PUBLIC_URL}"