ARG PG_VERSION
ARG REPOSITORY=neondatabase
ARG IMAGE=build-tools
ARG TAG=pinned
ARG BUILD_TAG

#########################################################################################
#
# Layer "build-deps"
#
#########################################################################################
FROM debian:bullseye-slim AS build-deps
RUN apt update &&  \
    apt install -y git autoconf automake libtool build-essential bison flex libreadline-dev \
    zlib1g-dev libxml2-dev libcurl4-openssl-dev libossp-uuid-dev wget pkg-config libssl-dev \
    libicu-dev libxslt1-dev liblz4-dev libzstd-dev zstd

#########################################################################################
#
# Layer "pg-build"
# Build Postgres from the neon postgres repository.
#
#########################################################################################
FROM build-deps AS pg-build
ARG PG_VERSION
COPY vendor/postgres-${PG_VERSION} postgres
RUN cd postgres && \
    export CONFIGURE_CMD="./configure CFLAGS='-O2 -g3' --enable-debug --with-openssl --with-uuid=ossp \
    --with-icu --with-libxml --with-libxslt --with-lz4" && \
    if [ "${PG_VERSION}" != "v14" ]; then \
        # zstd is available only from PG15
        export CONFIGURE_CMD="${CONFIGURE_CMD} --with-zstd"; \
    fi && \
    eval $CONFIGURE_CMD && \
    make MAKELEVEL=0 -j $(getconf _NPROCESSORS_ONLN) -s install && \
    make MAKELEVEL=0 -j $(getconf _NPROCESSORS_ONLN) -s -C contrib/ install && \
    # Install headers
    make MAKELEVEL=0 -j $(getconf _NPROCESSORS_ONLN) -s -C src/include install && \
    make MAKELEVEL=0 -j $(getconf _NPROCESSORS_ONLN) -s -C src/interfaces/libpq install && \
    # Enable some of contrib extensions
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/autoinc.control && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/bloom.control && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/earthdistance.control && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/insert_username.control && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/intagg.control && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/moddatetime.control && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/pg_stat_statements.control && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/pgrowlocks.control && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/pgstattuple.control && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/refint.control && \
    echo 'trusted = true' >> /usr/local/pgsql/share/extension/xml2.control && \
    # We need to grant EXECUTE on pg_stat_statements_reset() to neon_superuser.
    # In vanilla postgres this function is limited to Postgres role superuser.
    # In neon we have neon_superuser role that is not a superuser but replaces superuser in some cases.
    # We could add the additional grant statements to the postgres repository but it would be hard to maintain,
    # whenever we need to pick up a new postgres version and we want to limit the changes in our postgres fork,
    # so we do it here.
    old_list="pg_stat_statements--1.0--1.1.sql pg_stat_statements--1.1--1.2.sql pg_stat_statements--1.2--1.3.sql pg_stat_statements--1.3--1.4.sql pg_stat_statements--1.4--1.5.sql pg_stat_statements--1.4.sql pg_stat_statements--1.5--1.6.sql"; \
    # the first loop is for pg_stat_statement extension version <= 1.6
    for file in /usr/local/pgsql/share/extension/pg_stat_statements--*.sql; do \
        filename=$(basename "$file"); \
        if echo "$old_list" | grep -q -F "$filename"; then \
            echo 'GRANT EXECUTE ON FUNCTION pg_stat_statements_reset() TO neon_superuser;' >> $file; \
        fi; \
    done; \
    # the second loop is for pg_stat_statement extension versions >= 1.7,
    # where pg_stat_statement_reset() got 3 additional arguments
    for file in /usr/local/pgsql/share/extension/pg_stat_statements--*.sql; do \
        filename=$(basename "$file"); \
        if ! echo "$old_list" | grep -q -F "$filename"; then \
            echo 'GRANT EXECUTE ON FUNCTION pg_stat_statements_reset(Oid, Oid, bigint) TO neon_superuser;' >> $file; \
        fi; \
    done

#########################################################################################
#
# Layer "neon-pg-ext-build"
# compile neon extensions
#
#########################################################################################
FROM build-deps AS neon-pg-ext-build
ARG PG_VERSION

COPY --from=pg-build /usr/local/pgsql/ /usr/local/pgsql/
COPY pgxn/ pgxn/

RUN make -j $(getconf _NPROCESSORS_ONLN) \
        PG_CONFIG=/usr/local/pgsql/bin/pg_config \
        -C pgxn/neon \
        -s install && \
    make -j $(getconf _NPROCESSORS_ONLN) \
        PG_CONFIG=/usr/local/pgsql/bin/pg_config \
        -C pgxn/neon_utils \
        -s install && \
    make -j $(getconf _NPROCESSORS_ONLN) \
        PG_CONFIG=/usr/local/pgsql/bin/pg_config \
        -C pgxn/neon_test_utils \
        -s install && \
    make -j $(getconf _NPROCESSORS_ONLN) \
        PG_CONFIG=/usr/local/pgsql/bin/pg_config \
        -C pgxn/neon_rmgr \
        -s install && \
    case "${PG_VERSION}" in \
        "v14" | "v15") \
        ;; \
        "v16") \
            echo "Skipping HNSW for PostgreSQL 16" && exit 0 \
        ;; \
        *) \
            echo "unexpected PostgreSQL version" && exit 1 \
        ;; \
        esac && \
    make -j $(getconf _NPROCESSORS_ONLN) \
        PG_CONFIG=/usr/local/pgsql/bin/pg_config \
        -C pgxn/hnsw \
        -s install

#########################################################################################
#
# Compile and run the Neon-specific `compute_ctl` binary
#
#########################################################################################
FROM $REPOSITORY/$IMAGE:$TAG AS compute-tools
ARG BUILD_TAG
ENV BUILD_TAG=$BUILD_TAG

USER nonroot
# Copy entire project to get Cargo.* files with proper dependencies for the whole project
COPY --chown=nonroot . .
RUN cd compute_tools && cargo build --locked --profile release-line-debug-size-lto

#########################################################################################
#
# Clean up postgres folder before inclusion
#
#########################################################################################
FROM neon-pg-ext-build AS postgres-cleanup-layer
COPY --from=neon-pg-ext-build /usr/local/pgsql /usr/local/pgsql

# Remove binaries from /bin/ that we won't use (or would manually copy & install otherwise)
RUN cd /usr/local/pgsql/bin && rm ecpg

# Remove headers that we won't need anymore - we've completed installation of all extensions
RUN rm -r /usr/local/pgsql/include

# Remove static postgresql libraries - all compilation is finished, so we
# can now remove these files - they must be included in other binaries by now
# if they were to be used by other libraries.
RUN rm /usr/local/pgsql/lib/lib*.a

#########################################################################################
#
# Final layer
# Put it all together into the final image
#
#########################################################################################
FROM debian:bullseye-slim

COPY --from=postgres-cleanup-layer --chown=postgres /usr/local/pgsql /usr/local/pgsql