# Dockerfile providing a PostgreSQL database with example data for D4E River
FROM debian:bullseye
LABEL maintainer tom.gottfried@intevation.de

ENV PG_VERSION 13

#
# Use utf-8
#
RUN echo \
    "locales locales/locales_to_be_generated multiselect en_US.UTF-8 UTF-8" | \
    debconf-set-selections && \
    echo "locales locales/default_environment_locale select en_US.UTF-8" | \
    debconf-set-selections

RUN apt-get update -y && apt-get install -y locales

ENV LC_ALL en_US.UTF-8

#
# Install packages
#
RUN apt-get install -y postgresql-$PG_VERSION-postgis-3 curl
RUN apt-get -y clean

ENV PGCONF /etc/postgresql/$PG_VERSION/main/postgresql.conf
ENV PGBIN /usr/lib/postgresql/$PG_VERSION/bin/
ENV PGDATA /var/lib/postgresql/$PG_VERSION/main

#
# Use user postgres to run the next commands
#
USER postgres

#
# Adjust PostgreSQL configuration so that remote connections to the
# database are possible.
#
RUN echo "host all  all    0.0.0.0/0  md5" >> \
    /etc/postgresql/$PG_VERSION/main/pg_hba.conf

RUN echo "listen_addresses='*'" >> $PGCONF

#
# Create database
#
# Don't mind scary messages like
# 'FATAL: the database system is starting up'.
# It's because of the -w
#
ADD ./backend/doc/schema /opt/d4eriver_db

# Go to postgres home for write permissions
ENV DATA_ARCH demodaten_3.1.10-bis-3.2.x.tar.gz
RUN curl -sf "https://wald.intevation.org/frs/download.php/2282/$DATA_ARCH" | \
    tar -C $HOME --wildcards -xz 'demodaten/*.dump.sql'

# Initialize database
# Note that PostGIS legacy.sql is needed to support the outdated MapServer 6
RUN $PGBIN/pg_ctl start -wo "--config_file=$PGCONF" && \
    sh /opt/d4eriver_db/postgresql-setup.sh && \
    psql -f ~/demodaten/d4e_demodata.dump.sql d4e && \
    psql -d d4e -f /usr/share/postgresql/$PG_VERSION/contrib/postgis-3.1/legacy.sql && \
    createuser -S -D -R seddb && \
    psql -c "ALTER USER seddb WITH PASSWORD 'seddb'" && \
    createdb seddb && \
    psql -f ~/demodaten/seddb_demodata.dump.sql seddb && \
    psql -c "GRANT SELECT ON ALL TABLES IN SCHEMA public TO seddb" seddb && \
    $PGBIN/pg_ctl stop -m smart

RUN rm -r ~/demodaten

#
# Set the default command to run when starting the container
#
CMD ["/usr/lib/postgresql/13/bin/postgres", "-D", \
     "/var/lib/postgresql/13/main", "-c", \
     "config_file=/etc/postgresql/13/main/postgresql.conf"]