#!/usr/bin/env bash
# install.sh — nextcloud-collabora-nodered v1.0
# Kör på cloud (192.168.1.10): /home/ncdeploy/nextcloud-collabora-nodered
set -euo pipefail

VERSION="1.0.0"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
INSTALL_DIR="${INSTALL_DIR:-$SCRIPT_DIR}"
COMPOSE="docker compose"
CODE_CONTAINER="${CODE_CONTAINER:-code}"
COLLABORA_IP="${COLLABORA_IP:-172.17.0.2}"

log() { printf '[install] %s\n' "$*"; }
die() { printf '[install] FEL: %s\n' "$*" >&2; exit 1; }

require_cmd() {
    command -v "$1" >/dev/null 2>&1 || die "Saknar kommando: $1"
}

log "nextcloud-collabora-nodered v${VERSION}"
log "Installationskatalog: ${INSTALL_DIR}"

require_cmd docker
if docker compose version >/dev/null 2>&1; then
    COMPOSE="docker compose"
elif command -v docker-compose >/dev/null 2>&1; then
    COMPOSE="docker-compose"
else
    die "Docker Compose saknas"
fi

cd "${INSTALL_DIR}"

if [ ! -f docker-compose.yml ]; then
    die "docker-compose.yml saknas i ${INSTALL_DIR}"
fi

if [ ! -f .env ]; then
    log "Skapar .env från .env.example"
    cp .env.example .env
fi

# Valfri tarball från Windows
if [ -n "${IMPORT_TARBALL:-}" ] && [ -f "${IMPORT_TARBALL}" ]; then
    log "Extraherar ${IMPORT_TARBALL}"
    tmpdir="$(mktemp -d)"
    tar -xzf "${IMPORT_TARBALL}" -C "${tmpdir}"
    src="$(find "${tmpdir}" -maxdepth 2 -name docker-compose.yml -printf '%h\n' | head -1)"
    [ -n "${src}" ] || die "Ogiltig tarball"
    rsync -a "${src}/" "${INSTALL_DIR}/"
    rm -rf "${tmpdir}"
fi

# Verifiera att CODE redan kör (starta INTE ny)
if ! docker ps --format '{{.Names}}' | grep -qx "${CODE_CONTAINER}"; then
    die "CODE-container '${CODE_CONTAINER}' körs inte. Starta inte ny CODE — fixa befintlig instans först."
fi

code_ip="$(docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "${CODE_CONTAINER}" 2>/dev/null | head -1)"
if [ -n "${code_ip}" ] && [ "${code_ip}" != "${COLLABORA_IP}" ]; then
    log "OBS: CODE IP är ${code_ip} (inte ${COLLABORA_IP}). Uppdatera COLLABORA_URL i .env om nödvändigt."
    if grep -q '^COLLABORA_URL=' .env; then
        sed -i "s|^COLLABORA_URL=.*|COLLABORA_URL=http://${code_ip}:9980|" .env
    fi
fi

log "Bygger och startar sidecar (port 1881, nätverk bridge + collab_default)..."
if [ "${FORCE_REBUILD:-0}" = "1" ]; then
    ${COMPOSE} build --no-cache
else
    ${COMPOSE} build
fi
${COMPOSE} up -d

log "Väntar på Node-RED..."
for i in $(seq 1 30); do
    if curl -sf "http://127.0.0.1:1881" >/dev/null 2>&1; then
        log "Node-RED svarar på http://127.0.0.1:1881"
        break
    fi
    sleep 2
    [ "$i" -eq 30 ] && log "Varning: Node-RED svarade inte inom 60 s"
done

log "Testar CODE capabilities från sidecar..."
collab_url="$(grep '^COLLABORA_URL=' .env | cut -d= -f2- || echo "http://${COLLABORA_IP}:9980")"
if docker exec nextcloud-collabora-nodered curl -sf "${collab_url}/hosting/capabilities" >/dev/null 2>&1; then
    log "OK: CODE nås på ${collab_url}"
else
    log "VARNING: Kunde inte nå ${collab_url}/hosting/capabilities från sidecar."
    log "  Kontrollera: docker network inspect bridge | grep -A2 code"
    log "  Alternativ: docker network connect bridge nextcloud-collabora-nodered"
fi

cat <<EOF

Nästa steg:
1. Öppna http://192.168.1.10:1881
2. nc-collab-config: app-lösenord, collaboraUrl=${collab_url}
3. Kör acceptansflödet (capabilities → ncFileToPdf)

Git (Gitea): https://git.domain.name/
  git remote add origin https://git.domain.name/<user>/nextcloud-collabora-nodered.git
  git push -u origin main

Orört: nextcloud-node-red :1880 (odds_network), odds-scraper, Gitea-databaslösen.
EOF

log "Klart."