#!/bin/bash
# Build and push the J621 frontend image (amd64 + arm64) to the private Gitea
# registry as :latest and :<commit-sha>.
#
# Usage: ./push_frontend.sh [commit-sha]
set -euo pipefail
cd "$(dirname "$0")/.."

REGISTRY="gitea.rainbow-herring.ts.net/jakebreath/j621-frontend"
REGISTRY_HOST="$(printf '%s' "$REGISTRY" | cut -d/ -f1)"
SHA="${1:-$(git rev-parse --short HEAD)}"
BUILDER=multiarch
PLATFORMS="${PLATFORMS:-linux/amd64,linux/arm64}"

echo "==> Logging in to $REGISTRY_HOST ..."
if [ -n "${REGISTRY_USER:-}" ] && [ -n "${REGISTRY_TOKEN:-}" ]; then
    # Non-interactive login for CI (workflow passes GITHUB_TOKEN).
    printf '%s' "$REGISTRY_TOKEN" | docker login "$REGISTRY_HOST" \
        -u "$REGISTRY_USER" --password-stdin
else
    docker login "$REGISTRY_HOST"
fi

if ! docker buildx inspect "$BUILDER" >/dev/null 2>&1; then
    echo "==> Creating buildx builder '$BUILDER' ..."
    docker buildx create --name "$BUILDER" --driver docker-container \
        --platform "$PLATFORMS" --bootstrap
else
    docker buildx inspect --bootstrap "$BUILDER" >/dev/null
fi

echo "==> Building + pushing $PLATFORMS -> $REGISTRY:{latest,$SHA} ..."
docker buildx build --builder "$BUILDER" --push \
    --platform "$PLATFORMS" \
    --build-arg "GIT_HASH=$SHA" \
    -f deploy/J621-Frontend \
    -t "$REGISTRY:latest" \
    -t "$REGISTRY:$SHA" \
    .

echo "==> Done. On the deploy host:"
echo "    docker login $REGISTRY_HOST && docker compose pull && docker compose up -d"