{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Live LTM - minimal version\n",
    "\n",
    "This notebook creates a model by using only the Python interface without any input files."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "execution": {
     "iopub.execute_input": "2026-11-05T14:25:52.122230Z",
     "iopub.status.busy": "2026-11-05T14:25:52.122065Z",
     "iopub.status.idle": "2026-11-05T14:25:52.834820Z",
     "shell.execute_reply": "2026-11-05T14:25:52.833843Z"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Success\n"
     ]
    }
   ],
   "source": [
    "import os\n",
    "from pyltmapi import LtmSession\n",
    "from pyltm import util, Area, DCLine, Load, AggregatedHydroModule, Inflow, MarketStep\n",
    "from pathlib import Path\n",
    "\n",
    "# import logging\n",
    "# logging.basicConfig(level=logging.DEBUG)\n",
    "\n",
    "ltm_core_path = os.environ.get(\n",
    "    \"LTM_CORE_PATH\", str(Path(\"~\").expanduser().joinpath(\"ltm/release/bin/\"))\n",
    ")\n",
    "license_file = os.environ.get(\n",
    "    \"LTM_CORE_LICENSE_FILE\", str(Path(\"~\").expanduser().joinpath(\"ltm/ltm-license.dat\"))\n",
    ")\n",
    "\n",
    "sim_period = (\"2026-W01\", \"2027-W01\")\n",
    "hist_period = (\"1980-01-01T00:00:00Z\", \"1990-01-01T00:00:00Z\")\n",
    "\n",
    "with LtmSession(\"live_ltm_minimal\", ltm_core_path, overwrite_session=True) as session:\n",
    "    area1 = Area(name=\"area1\")\n",
    "    area2 = Area(\"area2\")\n",
    "    session.model.add(area1)\n",
    "    session.model.add(area2)\n",
    "\n",
    "    dcline = DCLine(\"dcline1\")\n",
    "    dcline.forward_capacity = util.make_constant_txy(200)\n",
    "    dcline.backward_capacity = util.make_constant_txy(200)\n",
    "    session.model.add(dcline)\n",
    "\n",
    "    session.connect(area1, dcline)\n",
    "    session.connect(dcline, area2)\n",
    "\n",
    "    load1 = Load(\"load1\")\n",
    "    load2 = Load(\"load2\")\n",
    "    load1.capacity = util.make_constant_txy(100)\n",
    "    load2.capacity = util.make_constant_txy(50)\n",
    "    session.model.add(load1)\n",
    "    session.model.add(load2)\n",
    "\n",
    "    session.connect(load1, area1)\n",
    "    session.connect(load2, area2)\n",
    "\n",
    "    constant = Inflow(\"constant\")\n",
    "    constant.series = util.make_constant_txy(1.0)\n",
    "    session.model.add(constant)\n",
    "\n",
    "    aggregated = AggregatedHydroModule(\"aggregated_hydro\")\n",
    "    aggregated.lower_production_limits = util.make_constant_txy(1.0)\n",
    "    aggregated.upper_production_limits = util.make_constant_txy(100.0)\n",
    "    aggregated.lower_reservoir_limits = util.make_constant_txy(0.1)\n",
    "    aggregated.upper_reservoir_limits = util.make_constant_txy(10000.0)\n",
    "    aggregated.regulated_power_inflow = util.make_constant_txy(350.0, 10)\n",
    "    aggregated.unregulated_power_inflow = util.make_constant_txy(50.0, 10)\n",
    "    aggregated.reservoir_energy = 10000\n",
    "    aggregated.start_reservoir_energy = 100\n",
    "    aggregated.station_power = 100\n",
    "    session.model.add(aggregated)\n",
    "    session.connect(aggregated, area2)\n",
    "\n",
    "    ms = MarketStep(\"market_step\")\n",
    "    ms.price = util.make_constant_txy(260.0)\n",
    "    ms.capacity = util.make_constant_txy(150.0)\n",
    "    session.model.add(ms)\n",
    "    session.connect(ms, area1)\n",
    "\n",
    "    session.model.global_settings.output_path = \"live_minimal_run\"\n",
    "    session.model.global_settings.ltm_license_file_path = license_file\n",
    "\n",
    "    session.model.global_settings.simulation_period = util.make_txy_period(*sim_period)\n",
    "    session.model.global_settings.historical_period = util.make_txy_period(*hist_period)\n",
    "    session.model.global_settings.timesteps_per_week = 56\n",
    "\n",
    "    last_return_code, program_results = session.run()\n",
    "\n",
    "    if last_return_code == 0:\n",
    "        print(\"Success\")\n",
    "    else:\n",
    "        print(\"Failure\")\n"
   ]
  }
 ],
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