ARG GOLANG_IMAGE=golang:1.26.1-alpine
ARG DEBIAN_IMAGE=debian:bookworm-slim

FROM ${GOLANG_IMAGE} AS builder

WORKDIR /app/backend
RUN apk add --no-cache git ca-certificates tzdata

COPY backend/go.mod backend/go.sum ./
RUN go mod download

COPY backend/ ./
RUN CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" -o /app/lsworker ./cmd/lsworker

FROM ${DEBIAN_IMAGE}

RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    curl \
    gosu \
    iproute2 \
    iptables \
    redsocks \
    tzdata \
    && rm -rf /var/lib/apt/lists/*

RUN groupadd -g 1000 sub2api && \
    useradd -u 1000 -g sub2api -m -s /bin/sh sub2api

WORKDIR /app

COPY --from=builder /app/lsworker /app/lsworker
COPY deploy/ls-bin/language_server_linux_* /tmp/ls-bin/
COPY deploy/ls-bin/cert.pem /app/ls/extensions/antigravity/dist/languageServer/

ARG TARGETARCH
RUN mkdir -p /app/ls/extensions/antigravity/bin /run/lsworker && \
    if [ "${TARGETARCH:-amd64}" = "arm64" ]; then \
      cp /tmp/ls-bin/language_server_linux_arm /app/ls/extensions/antigravity/bin/language_server_linux_arm; \
    else \
      cp /tmp/ls-bin/language_server_linux_x64 /app/ls/extensions/antigravity/bin/language_server_linux_x64; \
    fi && \
    chmod +x /app/lsworker /app/ls/extensions/antigravity/bin/language_server_linux_* && \
    chown -R sub2api:sub2api /app /run/lsworker && \
    rm -rf /tmp/ls-bin

COPY deploy/lsworker-entrypoint.sh /app/lsworker-entrypoint.sh
RUN chmod +x /app/lsworker-entrypoint.sh

EXPOSE 18081

ENTRYPOINT ["/app/lsworker-entrypoint.sh"]