from datetime import datetime
from io import BytesIO
from openpyxl import load_workbook
import streamlit as st
from excel import Formatter
from data import Data
from api import Api, RouteInput, CollectionInput, EstimatedContainerInput
from utils import friendly_date
from auth import get_id_cliente_reciclador


EXCEL_MIME_TYPE="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"


now = datetime.now()
api  = None
data = None
is_auth = False
try:
    api  = Api() # Inicializar API y obtener id del cliente reciclador
    data = Data(recycler_id=api.recycler_id) # Crear instancia de "conseguidor" de datos
    is_auth = get_id_cliente_reciclador(st.experimental_get_query_params().get("t", [""])[0]) is not None
except Exception as e:
    print(e)


def get_excel_data(date: datetime):
    # Crear archivo de Excel en memoria para descargar
    wb = Formatter.format_workbook(
        drivers  = data.get_drivers(),
        vehicles = data.get_vehicles(),
        routes   = data.get_routes(date=now),
        branches = data.get_branches(),
        date     = now
    )
    output = BytesIO()
    wb.save(output)

    return output


def main():
    st.set_page_config(page_title="Rutas en Excel", page_icon="🚚", layout="wide")
    st.markdown("<style>#MainMenu {visibility: hidden;} footer {visibility: hidden;} /*header {visibility: hidden;}*/</style>", unsafe_allow_html=True)
    st.title("Carga y descarga de Excel de rutas 🚚📍")
    st.markdown('### <span style="color:#9656E2; text-align: center">© Blau tecnología para residuos | blaucorp.com </span>', unsafe_allow_html=True)


    selected_date = st.date_input(
        label = "Selecciona una fecha",
        value = now,
        format= "DD/MM/YYYY"    
    )

    selected_datetime = datetime(year=selected_date.year, month=selected_date.month, day=selected_date.day)
    friendly_selected_date = friendly_date(selected_datetime)

    create_routes_file_btn = st.button(
        label="Crear Excel de rutas de día para descarga"
    )
    
    if create_routes_file_btn:
        st.write("Creando Excel, esto puede tomar unos momentos...")
        st.download_button(
            label     = f"📥 Descargar recolecciones del día {friendly_selected_date}",
            data      = get_excel_data(now),
            file_name = f"Rutas {friendly_selected_date}.xlsx",
            mime      = EXCEL_MIME_TYPE,
        )
        st.write("¡Listo! Puedes descargar tus rutas 👆")


    upload_routes_btn = st.button("Cargar rutas")
    
    uploaded_file = None
    if upload_routes_btn:
        uploaded_file = st.file_uploader(
            label                 = f"📤 Subir modificaciones de rutas del día {friendly_selected_date}",
            type                  = ["xlsx"],
            accept_multiple_files = False
        )

    if uploaded_file is not None:
        print("[UPLOAD]", uploaded_file)
        
        parsed_routes = Formatter.parse_workbook(load_workbook(uploaded_file))
        print("[PARSER] Parsed excel file")

        route_inputs: list[RouteInput] = []
        for pr in parsed_routes:
            collections_inputs: list[CollectionInput] = []
            route_containers = data.get_estimated_containers(branch_ids=[bid for _, bid in pr.collection_points])  
            
            for i in  range(0, len(pr.collection_points)):
                # print("[ROUTE_CONTAINERS]", route_containers)
                # print("[COLLECTION_POINTS]", pr.collection_points)
                containers = route_containers[i]

                customer_id, branch_id = pr.collection_points[i]

                collection = CollectionInput(
                    branch_id = branch_id,
                    driver_id = pr.driver_id,
                    vehicle_id= pr.vehicle_id,
                    estimated_containers=[
                        EstimatedContainerInput(
                            amount            = c["amount"],
                            container_type_id = c["containerTypeId"],
                            material_type_id  = c["materialTypeId"],
                            weight_kg         = c["weightKg"],
                        ) 
                        for c in containers
                    ]
                )
                collections_inputs.append(collection)
            
            route_inputs.append(RouteInput(id=pr.route_id, ordered_collections=collections_inputs))
        
        created_collection_ids = api.modify_daily_routes(date=now, routes=route_inputs)
        print(f"[UPDATE] Succesfully created {len(created_collection_ids)} collections!")
        print(created_collection_ids)


if is_auth:
    main()
else:
    st.write("🔒 Parece que no tienes permiso para ver esto")