ConsultancyProject_2_ETL/etl/src/api/main.py

import data
import polars as pl
from data import etl_property_capacities as etl_pc
from fastapi import FastAPI, Response

d = data.load()

app = FastAPI()

@app.get("/")
def read_root():
    return {"Hi there!"}

@app.get("/items/{item_id}")
def read_item(item_id: int):
	ext = d.extractions_for(item_id).pl()
	out = ext.with_columns(pl.col("calendar").str.extract_all(r"([0-9]{4}-[0-9]{2}-[0-9]{2})|[0-2]").alias("calendar_data"))
	out = out.drop(['calendar', 'property_id'])
	return Response(content=out.write_json(), media_type="application/json")

@app.get("/region/properties")
def properties_region():
	return d.properties_per_region().pl().to_dicts()

@app.get("/properties/growth")
def properties_growth():
	options = {"dates" : d.properties_growth().pl()['date'].to_list(), "total_all" : d.properties_growth().pl()['total_all'].to_list(),  "total_heidiland" : d.properties_growth().pl()['total_heidiland'].to_list(), "total_engadin" : d.properties_growth().pl()['total_engadin'].to_list(), "total_davos" : d.properties_growth().pl()['total_davos'].to_list(), "total_stmoritz" : d.properties_growth().pl()['total_stmoritz'].to_list()}
	return options

@app.get("/properties/geo")
def properties_geo():
	return d.properties_geo().pl().to_dicts()

@app.get("/property/{id}/extractions")
def property_extractions(id: int):
	return d.extractions_for(property_id = id).pl().to_dicts()

@app.get("/property/{id}/capacities")
def property_capacities_data(id: int):
	capacities = etl_pc.property_capacities(id)
	return capacities

@app.get("/property/{id}/base")
def property_base_data(id: int):
	return d.property_base_data(id).pl().to_dicts()

@app.get("/region/{id}/capacities")
def region_capacities_data(id: int):
	capacities = etl_pc.region_capacities(id)
	return capacities