# Pin the UI builder to the build host platform: its output is just static
# files, so there is no need to run node under QEMU when cross-building.
FROM --platform=$BUILDPLATFORM node:lts-alpine AS builder

WORKDIR /metube
COPY ui ./
RUN npm ci && \
    node_modules/.bin/ng build --configuration production


FROM python:3.13-slim

WORKDIR /app

# Heavy system dependencies in their own layer, independent of app/dep files,
# so it stays cached unless this block itself changes.
# apt caches are BuildKit cache mounts: even when this layer is invalidated,
# package downloads are reused instead of hitting deb.debian.org again.
RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
    --mount=type=cache,target=/var/lib/apt,sharing=locked \
    apt-get update && \
    apt-get install -y --no-install-recommends ffmpeg aria2 curl tini gosu ca-certificates unzip \
        chromium libnss3 libfreetype6 libharfbuzz0b fonts-freefont-ttf && \
    ln -s /usr/sbin/gosu /usr/local/bin/su-exec && \
    curl -fsSL https://deno.land/install.sh | DENO_INSTALL=/usr/local sh && \
    pip install --no-cache-dir uv && \
    mkdir /.cache && chmod 777 /.cache

# Python dependencies: only invalidated when pyproject.toml/uv.lock change.
# The uv cache mount makes re-resolving after a lockfile change much faster.
COPY pyproject.toml uv.lock ./
RUN --mount=type=cache,target=/root/.cache/uv \
    UV_PROJECT_ENVIRONMENT=/usr/local uv sync --frozen --no-dev --compile-bytecode --extra headless

# Use sed to strip carriage-return characters from the entrypoint script (in case building on Windows)
COPY docker-entrypoint.sh ./
RUN sed -i 's/\r$//g' docker-entrypoint.sh && chmod +x docker-entrypoint.sh

COPY app ./app
COPY --from=builder /metube/dist/metube ./ui/dist/metube

ENV UID=0
ENV GID=0
ENV UMASK=022

# Playwright settings for system Chromium
ENV PLAYWRIGHT_BROWSERS_PATH=0
ENV PLAYWRIGHT_CHROMIUM_EXECUTABLE_PATH=/usr/bin/chromium

ENV DOWNLOAD_DIR /downloads
ENV STATE_DIR /downloads/.metube
ENV TEMP_DIR /downloads
VOLUME /downloads
EXPOSE 8081

# Add build-time argument for version
ARG VERSION=dev
ENV METUBE_VERSION=$VERSION

ENTRYPOINT ["tini", "-g", "--", "./docker-entrypoint.sh"]