{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Download NWM Retrospective Point Data"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "# Import the required packages.\n",
    "import os\n",
    "\n",
    "import teehr.loading.nwm.retrospective_points as nwm_retro\n",
    "from pathlib import Path\n",
    "from datetime import datetime\n",
    "\n",
    "from dask.distributed import Client"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Set Variables \n",
    "Set variables to specify what NWM version to download, the time period, location IDs, and where to save the files."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "NWM_VERSION = \"nwm20\"\n",
    "VARIABLE_NAME = \"streamflow\"\n",
    "START_DATE = datetime(2000, 1, 1)\n",
    "END_DATE = datetime(2000, 1, 2, 23)\n",
    "LOCATION_IDS = [7086109, 7040481]\n",
    "\n",
    "OUTPUT_ROOT = Path(Path().home(), \"temp\")\n",
    "OUTPUT_DIR = Path(OUTPUT_ROOT, \"nwm20_retrospective\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "# Start a dask cluster to improve performance.\n",
    "n_workers = max(os.cpu_count() - 1, 1)\n",
    "client = Client(n_workers=n_workers)\n",
    "client"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Fetch and Load to the Data Model"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "%%time\n",
    "nwm_retro.nwm_retro_to_parquet(\n",
    "    nwm_version=NWM_VERSION,\n",
    "    variable_name=VARIABLE_NAME,\n",
    "    start_date=START_DATE,\n",
    "    end_date=END_DATE,\n",
    "    location_ids=LOCATION_IDS,\n",
    "    output_parquet_dir=OUTPUT_DIR\n",
    ")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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