Feat/devtest solution

.env.example

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+DATABASE_URL=postgresql://devsaieh:saiehpass@localhost:5433/devtest_db
+ENV=development

.gitignore

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+__pycache__/
+*.pyc
+
+docker-compose.override.yml
+
+pgdata/
+
+alembic/versions/

Dockerfile

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+FROM python:3.12-slim
+
+WORKDIR /DEVTEST
+
+RUN apt-get update && apt-get install -y build-essential
+
+COPY requirements.txt .
+
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+EXPOSE 8000
+
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]

alembic.ini

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+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = alembic
+
+# template used to generate migration file names; The default value is %%(rev)s_%%(slug)s
+# Uncomment the line below if you want the files to be prepended with date and time
+# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file
+# for all available tokens
+# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s
+
+# sys.path path, will be prepended to sys.path if present.
+# defaults to the current working directory.
+prepend_sys_path = .
+
+# timezone to use when rendering the date within the migration file
+# as well as the filename.
+# If specified, requires the python>=3.9 or backports.zoneinfo library.
+# Any required deps can installed by adding `alembic[tz]` to the pip requirements
+# string value is passed to ZoneInfo()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; This defaults
+# to alembic/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path.
+# The path separator used here should be the separator specified by "version_path_separator" below.
+# version_locations = %(here)s/bar:%(here)s/bat:alembic/versions
+
+# version path separator; As mentioned above, this is the character used to split
+# version_locations. The default within new alembic.ini files is "os", which uses os.pathsep.
+# If this key is omitted entirely, it falls back to the legacy behavior of splitting on spaces and/or commas.
+# Valid values for version_path_separator are:
+#
+# version_path_separator = :
+# version_path_separator = ;
+# version_path_separator = space
+version_path_separator = os  # Use os.pathsep. Default configuration used for new projects.
+
+# set to 'true' to search source files recursively
+# in each "version_locations" directory
+# new in Alembic version 1.10
+# recursive_version_locations = false
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = postgresql://devsaieh:saiehpass@db:5432/devtest_db
+
+
+[post_write_hooks]
+# post_write_hooks defines scripts or Python functions that are run
+# on newly generated revision scripts.  See the documentation for further
+# detail and examples
+
+# format using "black" - use the console_scripts runner, against the "black" entrypoint
+# hooks = black
+# black.type = console_scripts
+# black.entrypoint = black
+# black.options = -l 79 REVISION_SCRIPT_FILENAME
+
+# lint with attempts to fix using "ruff" - use the exec runner, execute a binary
+# hooks = ruff
+# ruff.type = exec
+# ruff.executable = %(here)s/.venv/bin/ruff
+# ruff.options = --fix REVISION_SCRIPT_FILENAME
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

alembic/README

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+Generic single-database configuration.

alembic/env.py

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+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+# IMPORTA Base desde donde defines tus modelos
+from app.db.models import Base  
+target_metadata = Base.metadata
+
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section, {}),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

alembic/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

app/api/v1/endpoints/routes_demand.py

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+"""
+Endpoints para manejar las demandas (llamadas) del ascensor.
+
+Incluye lógica de negocio que cierra automáticamente el último resting_period abierto
+para el ascensor cuando se recibe una nueva demanda, y validaciones realistas de dominio.
+
+"""
+
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+from app.schemas.demand import DemandCreate, DemandRead
+from app.db.models import Demand, RestingPeriod
+from app.db.db import get_db
+from datetime import datetime, timezone
+
+router = APIRouter()
+
+# Defino el rango de pisos permitido. 
+MIN_FLOOR = 1
+MAX_FLOOR = 12
+
+@router.post("/demands/", response_model=DemandRead)
+def create_demand(demand: DemandCreate, db: Session = Depends(get_db)):
+    """
+    Registra una nueva demanda de ascensor.
+    - Valida que el piso esté en rango permitido.
+    - Cierra el último resting_period abierto (sin resting_end) para el ascensor, si existe.
+    """
+    if demand.destination_floor < MIN_FLOOR or demand.destination_floor > MAX_FLOOR:
+        raise HTTPException(
+            status_code=400,
+            detail=f"El piso destino debe estar entre {MIN_FLOOR} y {MAX_FLOOR}."
+        )
+    if demand.floor < MIN_FLOOR or demand.floor > MAX_FLOOR:
+        raise HTTPException(
+            status_code=400,
+            detail=f"El piso debe estar entre {MIN_FLOOR} y {MAX_FLOOR}."
+        )
+
+    # Al registrar una demanda, cerramos automáticamente el resting actual (idle) si existe.
+    last_resting = db.query(RestingPeriod).filter(
+        RestingPeriod.elevator_id == demand.elevator_id,
+        RestingPeriod.resting_end.is_(None)
+    ).order_by(RestingPeriod.resting_start.desc()).first()
+
+    if last_resting:
+        # Usamos el mismo timestamp de la demanda para cerrar el periodo idle.
+        last_resting.resting_end = demand.timestamp_called or datetime.now(timezone.utc)
+        db.add(last_resting)
+
+    db_demand = Demand(
+        elevator_id=demand.elevator_id,
+        floor=demand.floor,
+        destination_floor=demand.destination_floor,  
+        timestamp_called=demand.timestamp_called or datetime.now(timezone.utc)
+    )
+
+    db.add(db_demand)
+    db.commit()
+    db.refresh(db_demand)
+    return db_demand
+
+@router.get("/demands/", response_model=list[DemandRead])
+def list_demands(db: Session = Depends(get_db)):
+    """
+    Lista todas las demandas registradas.
+    Pensado para debug y análisis histórico.
+    """
+    return db.query(Demand).all()

app/api/v1/endpoints/routes_model.py

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+from fastapi import APIRouter, HTTPException
+from app.schemas.model_input import RestingFloorRequest
+import joblib
+import numpy as np
+import os
+
+router = APIRouter()
+
+MODEL_PATH = os.path.join(os.path.dirname(__file__), "../../../ml/resting_floor_model.joblib")
+model = joblib.load(MODEL_PATH)
+
+@router.post("/predict_resting_floor/")
+def predict_resting_floor(request: RestingFloorRequest):
+    try:
+        features = [
+            request.hour,
+            request.weekday,
+            request.demand_count,
+            request.avg_floor,
+            request.most_common_floor,
+            request.avg_direction,
+            request.peak_hours
+        ]
+        pred = model.predict([features])[0]
+        return {"best_resting_floor": int(pred)}
+    except Exception as e:
+        raise HTTPException(status_code=400, detail=str(e))