feat: Flask routes and Jinja2/HTMX/Tailwind templates

app/routes/reports.py

@@ -1,3 +1,48 @@
-from flask import Blueprint
+from flask import Blueprint, render_template, request
+from datetime import date
+import sqlalchemy as sa
+from app import db
+from app.models import WorkEntry
+from app.business.travel_calc import compute_km_for_entry, compute_co2_grams, compute_frais_reels
+from app.config_loader import get_vehicles, get_journeys, get_bareme
 
-bp = Blueprint("reports", __name__)
+bp = Blueprint("reports", __name__, url_prefix="/reports")
+
+
+@bp.route("/")
+def index():
+    year = request.args.get("year", date.today().year, type=int)
+    start = date(year, 1, 1)
+    end = date(year, 12, 31)
+
+    entries = db.session.scalars(
+        sa.select(WorkEntry).where(WorkEntry.date.between(start, end))
+    ).all()
+
+    vehicles = get_vehicles()
+    journeys = get_journeys()
+
+    total_km = {}
+    total_co2 = 0.0
+    for entry in entries:
+        km = compute_km_for_entry(entry.journey_profile_id, journeys)
+        for v, d in km.items():
+            total_km[v] = total_km.get(v, 0) + d
+        total_co2 += compute_co2_grams(km, vehicles)
+
+    frais_reels = {}
+    for vehicle_id, km in total_km.items():
+        vehicle = vehicles.get(vehicle_id, {})
+        cv = vehicle.get("cv")
+        if cv:
+            tranches = get_bareme(year, cv)
+            frais_reels[vehicle_id] = round(compute_frais_reels(km, tranches), 2)
+
+    return render_template(
+        "reports.html",
+        year=year,
+        total_km=total_km,
+        total_co2_kg=round(total_co2 / 1000, 2),
+        frais_reels=frais_reels,
+        vehicles=vehicles,
+    )