#!/usr/bin/env bash
# Cerbero_mcp — build & push image al registry Gitea da macchina locale.
#
# Sostituisce il job CI `build-and-push` di .gitea/workflows/ci.yml.
# Usalo dopo `git push` (o senza, se vuoi pushare un build "dirty").
# Watchtower sul VPS pulla automaticamente entro WATCHTOWER_POLL_INTERVAL.
#
# Pre-requisiti:
#   - docker + buildx
#   - PAT Gitea con scope `write:package` in env $GITEA_PAT
#   - $GITEA_USER (default: adriano)
#
# Uso:
#   ./scripts/build-push.sh                    # tutte le image
#   ./scripts/build-push.sh base gateway       # solo specifiche

set -euo pipefail

REGISTRY="${REGISTRY:-git.tielogic.xyz}"
IMAGE_PREFIX="${IMAGE_PREFIX:-$REGISTRY/adriano/cerbero-mcp}"
GITEA_USER="${GITEA_USER:-adriano}"
SHA="$(git rev-parse --short HEAD)"

# Ordine di build: base prima (parent delle mcp-*), poi le altre.
ALL_TARGETS=(base gateway mcp-deribit mcp-bybit mcp-hyperliquid mcp-alpaca mcp-macro mcp-sentiment)
TARGETS=("${@:-${ALL_TARGETS[@]}}")

if [ -z "${GITEA_PAT:-}" ]; then
    echo "FATAL: env GITEA_PAT non settata (PAT scope write:package)."
    exit 1
fi

command -v docker >/dev/null || { echo "FATAL: docker non installato"; exit 1; }
docker buildx version >/dev/null || { echo "FATAL: docker buildx non disponibile"; exit 1; }

echo "=== docker login $REGISTRY ==="
echo "$GITEA_PAT" | docker login "$REGISTRY" -u "$GITEA_USER" --password-stdin

build_one() {
    local name="$1"
    local context file
    case "$name" in
        base)
            context="."; file="docker/base.Dockerfile" ;;
        gateway)
            context="./gateway"; file="gateway/Dockerfile" ;;
        mcp-*)
            context="."; file="docker/${name}.Dockerfile" ;;
        *)
            echo "FATAL: target sconosciuto '$name'"; exit 1 ;;
    esac

    if [ ! -f "$file" ]; then
        echo "FATAL: Dockerfile non trovato: $file"; exit 1
    fi

    local tag_latest="$IMAGE_PREFIX/$name:latest"
    local tag_sha="$IMAGE_PREFIX/$name:sha-$SHA"

    echo "=== [$name] build & push ==="
    local args=(buildx build --push
        -f "$file"
        -t "$tag_latest"
        -t "$tag_sha"
    )
    if [[ "$name" == mcp-* ]]; then
        args+=(--build-arg "BASE_IMAGE=$IMAGE_PREFIX/base"
               --build-arg "BASE_TAG=latest")
    fi
    args+=("$context")

    docker "${args[@]}"
    echo "  pushed: $tag_latest"
    echo "  pushed: $tag_sha"
}

for t in "${TARGETS[@]}"; do
    build_one "$t"
done

echo
echo "=== Tutto pushato (commit $SHA) ==="
echo "VPS Watchtower farà pull entro WATCHTOWER_POLL_INTERVAL (default 5min)."
echo "Per forzare subito:"
echo "  ssh <vps> 'cd /docker/cerbero_mcp && docker compose -f docker-compose.prod.yml pull && docker compose -f docker-compose.prod.yml up -d'"