#!/bin/sh

dc_dir={{ docker_compose_base_dir }}
nextcloud_base_dir=/var/www/html
nextcloud_data_dir=/var/www/data
postgres_db_user={{ postgres_db_user }}
nextcloud_db_user={{ nextcloud_db_user }}
nextcloud_db={{ nextcloud_db }}

DOCKER_EXE() {
    ( cd $dc_dir; docker compose exec "$@" )
}

ON_POSTGRES() {
    DOCKER_EXE -T -u postgres postgres "$@"
}

ON_POSTGRESi() {
    DOCKER_EXE -u postgres postgres "$@"
}

ON_NEXTCLOUD() {
    DOCKER_EXE -T -u www-data nextcloud "$@"
}

ON_NEXTCLOUDi() {
    DOCKER_EXE -u www-data nextcloud "$@"
}

PSQL() {
    ON_POSTGRES /usr/local/bin/psql "$@"
}

PGDUMP() {
    ON_POSTGRES /usr/local/bin/pg_dump "$@"
}

PSQLi() {
    ON_POSTGRESi /usr/local/bin/psql "$@"
}

PHP() {
    ON_NEXTCLOUD /usr/local/bin/php "$@"
}

TEE() {
    ON_NEXTCLOUD /usr/bin/tee "$1"
}

CAT() {
    ON_NEXTCLOUD /bin/cat "$1"
}

DUMP() {
    ON_NEXTCLOUD /bin/sh -c "for d in $*; do /usr/bin/tar -C \$d -c . ; done"
}

UNDUMP() {
    ON_NEXTCLOUD /bin/sh -c "for d in $*; do /usr/bin/tar -C \$d -x ; done"
}

_gen_config() {
    local config=$nextcloud_base_dir/config/config.php
    script=$( cat <<EOF )
require("$config");
\$CONFIG["password"] = "password";
// FIXME more here
file_put_contents("$config.2", "<?php\\n\\\$CONFIG = ". var_export(\$CONFIG, true) .";\\n");
EOF
       
    PHP -r "$script"
}

unpack_db() {
    tar t >/dev/null && tar t >/dev/null && cat
}

# FIXME override selected config settings
restore() {
    ( UNDUMP $nextcloud_base_dir $nextcloud_data_dir
      #FIXME      [ -n "$config" ] && gen_config <<<'$config' | WRITE $nextcloud_base_dir/config/config.php
      PSQL -U $postgres_db_user < $dc_dir/postgres/init.sql
      cat | PSQL -U $postgres_db_user -d $nextcloud_db )
}

backup() {
    ( DUMP $nextcloud_base_dir $nextcloud_data_dir
      PGDUMP -U $postgres_db_user $nextcloud_db )
}

prune() {
    docker system prune -a --volumes
}

OCC() {
    ON_NEXTCLOUD ./occ "$@"
}

NSH() {
    ON_NEXTCLOUDi sh "$@"
}

set -vx
set -e
"$@"