let
nixpkgs = import (builtins.fetchTarball "https://github.com/NixOS/nixpkgs/archive/24.11-beta.tar.gz") {
  overlays = [];
  config = {};
};

in
with nixpkgs;

stdenv.mkDerivation {
  name = "postgres-env";
  buildInputs = [];

  nativeBuildInputs = [
    zsh
    vim
    geos
    gdal
    nixpkgs-fmt
    nodejs_22
    openssl
    prisma

    # postgres-12 with postgis support
    (postgresql_12.withPackages (p: [ p.postgis ]))
  ];

  postgresConf =
    writeText "postgresql.conf"
      ''
        # Add Custom Settings
        log_min_messages = warning
        log_min_error_statement = error
        log_min_duration_statement = 100  # ms
        log_connections = on
        log_disconnections = on
        log_duration = on
        #log_line_prefix = '[] '
        log_timezone = 'UTC'
        log_statement = 'all'
        log_directory = 'pg_log'
        log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'
        logging_collector = on
        log_min_error_statement = error
      '';


  # ENV Variables
  LD_LIBRARY_PATH = "${geos}/lib:${gdal}/lib";
  PGDATA = "${toString ./.}/.pg";

  # Post Shell Hook
  shellHook = ''
    echo "Using ${postgresql_12.name}."

    # Setup: other env variables
    export PGHOST="$PGDATA"
    export PRISMA_SCHEMA_ENGINE_BINARY="${pkgs.prisma-engines}/bin/schema-engine"
    export PRISMA_QUERY_ENGINE_BINARY="${pkgs.prisma-engines}/bin/query-engine"
    export PRISMA_QUERY_ENGINE_LIBRARY="${pkgs.prisma-engines}/lib/libquery_engine.node"
    export PRISMA_FMT_BINARY="${pkgs.prisma-engines}/bin/prisma-fmt"
    export PATH="$PWD/node_modules/.bin/:$PATH"

    # Setup: DB
    [ ! -d $PGDATA ] && pg_ctl initdb -o "-U postgres" && cat "$postgresConf" >> $PGDATA/postgresql.conf
    pg_ctl -o "-p 5555 -k $PGDATA" start
    alias fin="pg_ctl stop && exit"
    alias pg="psql -p 5555 -U postgres"
  '';
}