Merge branch 'master' into devel

codé avec l'aide de claude IA

README.md

@@ -1,6 +1,6 @@
 # Facturation Association
 
-Application de facturation légale française pour associations (loi 1901),
+Application de facturation légale française pour associations (loi 1901) ou micro-entrepreneur,
 non assujetties à la TVA (art. 293B du CGI).
 
 ## Fonctionnalités
@@ -9,7 +9,7 @@ non assujetties à la TVA (art. 293B du CGI).
 - Devis avec numérotation automatique (DEV-AAAA-XXXX)
 - Factures avec numérotation chronologique (AAAA-XXXX)
 - Conversion devis → facture
-- Génération PDF avec toutes les mentions légales françaises
+- Génération PDF avec toutes les mentions légales françaises et conforme aux normes de facturation electronique Factur-X
 - Suivi des statuts (émise / payée / annulée)
 
 ## Stack

generate_facturx_basic.py

@@ -1,345 +0,0 @@
-"""
-Usage
-pip install lxml
-python generate_facturx_basic.py
-"""
-
-"""
-Générateur de XML Factur-X - Profil BASIC
-Conforme à la norme EN 16931, syntaxe CII (Cross Industry Invoice)
-Factur-X 1.0 / ZUGFeRD 2.x
-"""
-
-from lxml import etree
-from datetime import date
-from dataclasses import dataclass, field
-from typing import List, Optional
-
-
-# ─────────────────────────────────────────────
-# Namespaces CII obligatoires
-# ─────────────────────────────────────────────
-NSMAP = {
-    "rsm": "urn:un:unece:uncefact:data:standard:CrossIndustryInvoice:100",
-    "ram": "urn:un:unece:uncefact:data:standard:ReusableAggregateBusinessInformationEntity:100",
-    "udt": "urn:un:unece:uncefact:data:standard:UnqualifiedDataType:100",
-    "qdt": "urn:un:unece:uncefact:data:standard:QualifiedDataType:100",
-    "xsi": "http://www.w3.org/2001/XMLSchema-instance",
-}
-RSM = NSMAP["rsm"]
-RAM = NSMAP["ram"]
-UDT = NSMAP["udt"]
-
-PROFILE_BASIC = "urn:factur-x.eu:1p0:basic"
-
-
-# ─────────────────────────────────────────────
-# Structures de données
-# ─────────────────────────────────────────────
-@dataclass
-class Address:
-    line1: str
-    city: str
-    postcode: str
-    country_code: str        # ISO 3166-1 alpha-2, ex: "FR"
-    line2: Optional[str] = None
-
-
-@dataclass
-class Party:
-    name: str
-    vat_id: Optional[str] = None   # ex: "FR12345678901"
-    siret: Optional[str] = None    # schemeID="0002"
-    address: Optional[Address] = None
-
-
-@dataclass
-class TaxLine:
-    base_amount: float
-    rate: float              # ex: 20.0 pour 20%
-    amount: float
-    category: str = "E"     # S=standard, Z=zéro, E=exonéré, AE=autoliquidation
-
-
-@dataclass
-class InvoiceLine:
-    line_id: str
-    description: str
-    quantity: float
-    unit_code: str           # ex: "C62"=unité, "HUR"=heure, "KGM"=kg
-    unit_price: float        # prix HT unitaire
-    vat_rate: float          # ex: 20.0
-    vat_category: str = "S"
-    # Le montant HT de la ligne est calculé automatiquement
-
-
-@dataclass
-class Invoice:
-    # En-tête
-    number: str
-    issue_date: date
-    due_date: Optional[date]
-    currency: str            # ex: "EUR"
-    type_code: str = "380"   # 380=facture, 381=avoir, 384=facture rectificative
-
-    # Parties
-    seller: Party = None
-    buyer: Party = None
-
-    # Lignes
-    lines: List[InvoiceLine] = field(default_factory=list)
-
-    # Paiement
-    payment_means_code: str = "30"   # 30=virement
-    iban: Optional[str] = None
-    bic: Optional[str] = None
-    payment_reference: Optional[str] = None
-
-    # Note (champ libre)
-    note: Optional[str] = None
-
-
-# ─────────────────────────────────────────────
-# Helpers XML
-# ─────────────────────────────────────────────
-def sub(parent, ns, tag, text=None, **attribs):
-    el = etree.SubElement(parent, f"{{{ns}}}{tag}", **attribs)
-    if text is not None:
-        el.text = str(text)
-    return el
-
-
-def date_str(d: date) -> str:
-    return d.strftime("%Y%m%d")
-
-
-def amount_str(v: float) -> str:
-    return f"{v:.2f}"
-
-
-# ─────────────────────────────────────────────
-# Construction du XML
-# ─────────────────────────────────────────────
-def build_facturx(inv: Invoice) -> etree._ElementTree:
-
-    root = etree.Element(f"{{{RSM}}}CrossIndustryInvoice", nsmap=NSMAP)
-
-    # ── 1. ExchangedDocumentContext ──────────────
-    ctx = sub(root, RSM, "ExchangedDocumentContext")
-    gp = sub(ctx, RAM, "GuidelineSpecifiedDocumentContextParameter")
-    sub(gp, RAM, "ID", PROFILE_BASIC)
-
-    # ── 2. ExchangedDocument ────────────────────
-    doc = sub(root, RSM, "ExchangedDocument")
-    sub(doc, RAM, "ID", inv.number)
-    sub(doc, RAM, "TypeCode", inv.type_code)
-    idt = sub(doc, RAM, "IssueDateTime")
-    sub(idt, UDT, "DateTimeString", date_str(inv.issue_date), format="102")
-    if inv.note:
-        sub(doc, RAM, "IncludedNote").append(
-            etree.fromstring(f'<ram:Content xmlns:ram="{RAM}">{inv.note}</ram:Content>')
-        )
-
-    # ── 3. SupplyChainTradeTransaction ──────────
-    tx = sub(root, RSM, "SupplyChainTradeTransaction")
-
-    # ── 3a. Lignes de facture (BASIC = lignes obligatoires) ──
-    for ln in inv.lines:
-        net = round(ln.quantity * ln.unit_price, 2)
-        ili = sub(tx, RAM, "IncludedSupplyChainTradeLineItem")
-        assoc = sub(ili, RAM, "AssociatedDocumentLineDocument")
-        sub(assoc, RAM, "LineID", ln.line_id)
-
-        prod = sub(ili, RAM, "SpecifiedTradeProduct")
-        sub(prod, RAM, "Name", ln.description)
-
-        la = sub(ili, RAM, "SpecifiedLineTradeAgreement")
-        gpp = sub(la, RAM, "GrossPriceProductTradePrice")
-        sub(gpp, RAM, "ChargeAmount", amount_str(ln.unit_price), currencyID=inv.currency)
-        npp = sub(la, RAM, "NetPriceProductTradePrice")
-        sub(npp, RAM, "ChargeAmount", amount_str(ln.unit_price), currencyID=inv.currency)
-
-        ld = sub(ili, RAM, "SpecifiedLineTradeDelivery")
-        sub(ld, RAM, "BilledQuantity", amount_str(ln.quantity), unitCode=ln.unit_code)
-
-        ls = sub(ili, RAM, "SpecifiedLineTradeSettlement")
-        tax = sub(ls, RAM, "ApplicableTradeTax")
-        sub(tax, RAM, "TypeCode", "VAT")
-        sub(tax, RAM, "CategoryCode", ln.vat_category)
-        sub(tax, RAM, "RateApplicablePercent", amount_str(ln.vat_rate))
-
-        smls = sub(ls, RAM, "SpecifiedTradeSettlementLineMonetarySummation")
-        sub(smls, RAM, "LineTotalAmount", amount_str(net), currencyID=inv.currency)
-
-    # ── 3b. ApplicableHeaderTradeAgreement ──────
-    agr = sub(tx, RAM, "ApplicableHeaderTradeAgreement")
-
-    def _party(parent_el, tag, party: Party):
-        p = sub(parent_el, RAM, tag)
-        sub(p, RAM, "Name", party.name)
-        if party.siret:
-            sr = sub(p, RAM, "SpecifiedLegalOrganization")
-            sub(sr, RAM, "ID", party.siret, schemeID="0002")
-        if party.vat_id:
-            tr = sub(p, RAM, "SpecifiedTaxRegistration")
-            sub(tr, RAM, "ID", party.vat_id, schemeID="VA")
-        if party.address:
-            addr = sub(p, RAM, "PostalTradeAddress")
-            sub(addr, RAM, "PostcodeCode", party.address.postcode)
-            sub(addr, RAM, "LineOne", party.address.line1)
-            if party.address.line2:
-                sub(addr, RAM, "LineTwo", party.address.line2)
-            sub(addr, RAM, "CityName", party.address.city)
-            sub(addr, RAM, "CountryID", party.address.country_code)
-        return p
-
-    _party(agr, "SellerTradeParty", inv.seller)
-    _party(agr, "BuyerTradeParty", inv.buyer)
-
-    if inv.payment_reference:
-        bor = sub(agr, RAM, "BuyerOrderReferencedDocument")
-        sub(bor, RAM, "IssuerAssignedID", inv.payment_reference)
-
-    # ── 3c. ApplicableHeaderTradeDelivery ───────
-    sub(tx, RAM, "ApplicableHeaderTradeDelivery")
-
-    # ── 3d. ApplicableHeaderTradeSettlement ─────
-    stl = sub(tx, RAM, "ApplicableHeaderTradeSettlement")
-    sub(stl, RAM, "InvoiceCurrencyCode", inv.currency)
-
-    # Moyens de paiement
-    pm = sub(stl, RAM, "SpecifiedTradeSettlementPaymentMeans")
-    sub(pm, RAM, "TypeCode", inv.payment_means_code)
-    if inv.iban:
-        acc = sub(pm, RAM, "PayeePartyCreditorFinancialAccount")
-        sub(acc, RAM, "IBANID", inv.iban)
-    if inv.bic:
-        fi = sub(pm, RAM, "PayeeSpecifiedCreditorFinancialInstitution")
-        sub(fi, RAM, "BICID", inv.bic)
-
-    # TVA par taux (calcul à partir des lignes)
-    tax_totals: dict[tuple, list] = {}
-    for ln in inv.lines:
-        key = (ln.vat_rate, ln.vat_category)
-        tax_totals.setdefault(key, []).append(round(ln.quantity * ln.unit_price, 2))
-
-    total_ht = 0.0
-    total_tva = 0.0
-    for (rate, cat), bases in tax_totals.items():
-        base = round(sum(bases), 2)
-        tva = round(base * rate / 100, 2)
-        total_ht += base
-        total_tva += tva
-        tax = sub(stl, RAM, "ApplicableTradeTax")
-        sub(tax, RAM, "CalculatedAmount", amount_str(tva), currencyID=inv.currency)
-        sub(tax, RAM, "TypeCode", "VAT")
-        sub(tax, RAM, "BasisAmount", amount_str(base), currencyID=inv.currency)
-        sub(tax, RAM, "CategoryCode", cat)
-        sub(tax, RAM, "RateApplicablePercent", amount_str(rate))
-
-    total_ht = round(total_ht, 2)
-    total_tva = round(total_tva, 2)
-    total_ttc = round(total_ht + total_tva, 2)
-
-    # Échéance
-    if inv.due_date:
-        stp = sub(stl, RAM, "SpecifiedTradePaymentTerms")
-        ddt = sub(stp, RAM, "DueDateDateTime")
-        sub(ddt, UDT, "DateTimeString", date_str(inv.due_date), format="102")
-
-    # Totaux
-    sums = sub(stl, RAM, "SpecifiedTradeSettlementHeaderMonetarySummation")
-    sub(sums, RAM, "LineTotalAmount",    amount_str(total_ht),  currencyID=inv.currency)
-    sub(sums, RAM, "TaxBasisTotalAmount",amount_str(total_ht),  currencyID=inv.currency)
-    sub(sums, RAM, "TaxTotalAmount",     amount_str(total_tva), currencyID=inv.currency)
-    sub(sums, RAM, "GrandTotalAmount",   amount_str(total_ttc), currencyID=inv.currency)
-    sub(sums, RAM, "DuePayableAmount",   amount_str(total_ttc), currencyID=inv.currency)
-
-    return etree.ElementTree(root)
-
-
-# ─────────────────────────────────────────────
-# Exemple d'utilisation
-# ─────────────────────────────────────────────
-if __name__ == "__main__":
-
-    invoice = Invoice(
-        number="FA-2024-00123",
-        issue_date=date(2024, 3, 15),
-        due_date=date(2024, 4, 14),
-        currency="EUR",
-        type_code="380",
-        note="Facture relative au contrat n°CTR-2024-01",
-
-        seller=Party(
-            name="Ma Société SAS",
-            vat_id="FR12345678901",
-            siret="12345678900012",
-            address=Address(
-                line1="10 rue de la Paix",
-                city="Paris",
-                postcode="75001",
-                country_code="FR",
-            ),
-        ),
-
-        buyer=Party(
-            name="Client SARL",
-            vat_id="FR98765432100",
-            siret="98765432100011",
-            address=Address(
-                line1="5 avenue des Fleurs",
-                city="Lyon",
-                postcode="69001",
-                country_code="FR",
-            ),
-        ),
-
-        lines=[
-            InvoiceLine(
-                line_id="1",
-                description="Développement logiciel - Sprint 1",
-                quantity=10,
-                unit_code="HUR",   # heures
-                unit_price=150.00,
-                vat_rate=0.0,
-            ),
-            InvoiceLine(
-                line_id="2",
-                description="Licence logicielle annuelle",
-                quantity=1,
-                unit_code="C62",   # unité
-                unit_price=500.00,
-                vat_rate=0.0,
-            ),
-            InvoiceLine(
-                line_id="3",
-                description="Formation utilisateurs",
-                quantity=2,
-                unit_code="HUR",
-                unit_price=200.00,
-                vat_rate=0.0,
-            ),
-        ],
-
-        payment_means_code="30",   # 30 = virement bancaire
-        iban="FR7612345678901234567890189",
-        bic="BNPAFRPPXXX",
-        payment_reference="CTR-2024-01",
-    )
-
-    tree = build_facturx(invoice)
-    output_file = "factur-x.xml"
-    tree.write(output_file, xml_declaration=True, encoding="UTF-8", pretty_print=True)
-
-    print(f"✅ Fichier généré : {output_file}")
-    print(f"   Facture        : {invoice.number}")
-    print(f"   Émetteur       : {invoice.seller.name}")
-    print(f"   Destinataire   : {invoice.buyer.name}")
-
-    # Calcul récapitulatif
-    total_ht  = sum(round(l.quantity * l.unit_price, 2) for l in invoice.lines)
-    total_tva = round(total_ht * 0.20, 2)
-    print(f"   Total HT       : {total_ht:.2f} €")
-    print(f"   TVA 20%        : {total_tva:.2f} €")
-    print(f"   Total TTC      : {total_ht + total_tva:.2f} €")

generate_facturx_jinja2.py

@@ -0,0 +1,225 @@
+"""
+Générateur Factur-X BASIC via template Jinja2
+"""
+
+from jinja2 import Environment, FileSystemLoader
+from dataclasses import dataclass, field
+from typing import List, Optional
+from datetime import date
+from collections import defaultdict
+
+from fastapi.templating import Jinja2Templates
+
+templates = Jinja2Templates(directory="templates")
+
+# ─────────────────────────────────────────────
+# Structures de données (identiques au générateur lxml)
+# ─────────────────────────────────────────────
+@dataclass
+class Address:
+    line1: str
+    city: str
+    postcode: str
+    country_code: str
+    line2: Optional[str] = None
+
+
+@dataclass
+class Party:
+    name: str
+    vat_id: Optional[str] = None
+    siret: Optional[str] = None
+    address: Optional[Address] = None
+
+
+@dataclass
+class InvoiceLine:
+    line_id: str
+    description: str
+    quantity: float
+    unit_code: str
+    unit_price: float
+    vat_rate: float
+    vat_category: str = "S"
+
+# Raison d'exonération par catégorie TVA
+EXEMPTION_REASONS = {
+    "E": "TVA non applicable, art. 293 B du CGI",
+    "Z": "Taux zéro",
+    "AE": "Autoliquidation",
+    "K": "Exonération intracommunautaire",
+    "G": "Exportation hors UE",
+}
+
+@dataclass
+class TaxLine:
+    rate: float
+    category: str
+    base_amount: float
+    amount: float
+    exemption_reason: Optional[str] = None
+
+@dataclass
+class Invoice:
+    number: str
+    issue_date: date
+    currency: str
+    seller: Party
+    buyer: Party
+    lines: List[InvoiceLine] = field(default_factory=list)
+    due_date: Optional[date] = None
+    type_code: str = "380"
+    payment_means_code: str = "30"
+    iban: Optional[str] = None
+    payment_reference: Optional[str] = None
+    note: Optional[str] = None
+
+    # Calculés automatiquement (voir compute())
+    tax_lines: List[TaxLine] = field(default_factory=list)
+    total_ht: float = 0.0
+    total_tva: float = 0.0
+    total_ttc: float = 0.0
+
+    def compute(self):
+        """Calcule les totaux et les lignes de TVA depuis les lignes de facture."""
+        tax_groups = defaultdict(float)
+        self.total_ht = 0.0
+
+        for ln in self.lines:
+            net = round(ln.quantity * ln.unit_price, 2)
+            self.total_ht += net
+            tax_groups[(ln.vat_rate, ln.vat_category)] += net
+
+        self.total_ht = round(self.total_ht, 2)
+        self.tax_lines = []
+        self.total_tva = 0.0
+
+        for (rate, category), base in tax_groups.items():
+            base = round(base, 2)
+            amount = round(base * rate / 100, 2)
+            self.total_tva += amount
+            self.tax_lines.append(TaxLine(
+                rate=rate,
+                category=category,
+                base_amount=base,
+                amount=amount,
+                 # Raison d'exonération automatique si catégorie != "S" (standard)
+                exemption_reason=EXEMPTION_REASONS.get(category) if category != "S" else None,
+            ))
+
+        self.total_tva = round(self.total_tva, 2)
+        self.total_ttc = round(self.total_ht + self.total_tva, 2)
+
+
+# ─────────────────────────────────────────────
+# Filtres Jinja2 personnalisés
+# ─────────────────────────────────────────────
+def filter_amount(value: float) -> str:
+    return f"{float(value):.2f}"
+
+
+def filter_datefmt(value: date) -> str:
+    return value.strftime("%Y%m%d")
+
+
+# ─────────────────────────────────────────────
+# Générateur
+# ─────────────────────────────────────────────
+def generate_facturx_xml(invoice: Invoice, template_dir: str = ".", output_file: str = "factur-x.xml") -> str:
+    """
+    Génère le XML Factur-X BASIC depuis le template Jinja2.
+    Retourne le XML sous forme de chaîne et l'écrit dans output_file.
+    """
+    # Calcul des totaux
+    invoice.compute()
+
+    # Environnement Jinja2
+    env = Environment(
+        loader=FileSystemLoader(template_dir),
+        autoescape=False,          # XML géré manuellement
+        trim_blocks=True,          # supprime le \n après les blocs {% %}
+        lstrip_blocks=True,        # supprime les espaces avant {% %}
+    )
+    env.filters["amount"] = filter_amount
+    env.filters["datefmt"] = filter_datefmt
+
+    template = env.get_template("templates/xml/factur-x-basic.xml.j2")
+    xml_str = template.render(
+        invoice=invoice,
+        seller=invoice.seller,
+        buyer=invoice.buyer,
+    )
+
+    with open(output_file, "w", encoding="utf-8") as f:
+        f.write(xml_str)
+
+    return xml_str
+
+
+# ─────────────────────────────────────────────
+# Exemple d'utilisation
+# ─────────────────────────────────────────────
+if __name__ == "__main__":
+
+    invoice = Invoice(
+        number="FA-2024-00123",
+        issue_date=date(2024, 3, 15),
+        due_date=date(2024, 4, 14),
+        currency="EUR",
+        type_code="380",
+        note="Facture relative au contrat n°CTR-2024-01",
+
+        seller=Party(
+            name="Ma Société SAS",
+            # vat_id absent : pas de numéro TVA en franchise (art. 293 B CGI)
+            siret="12345678900012",
+            address=Address(
+                line1="10 rue de la Paix",
+                city="Paris",
+                postcode="75001",
+                country_code="FR",
+            ),
+        ),
+
+        buyer=Party(
+            name="Client SARL",
+            vat_id="FR98765432100",
+            siret="98765432100011",
+            address=Address(
+                line1="5 avenue des Fleurs",
+                city="Lyon",
+                postcode="69001",
+                country_code="FR",
+            ),
+        ),
+
+        payment_means_code="30",
+        iban="FR7612345678901234567890189",
+        payment_reference="CTR-2024-01",
+    )
+
+    # Ajout des lignes — franchise de TVA (art. 293 B du CGI)
+    # Utiliser vat_category="E" et vat_rate=0.0
+    articles = [
+        {"desc": "Développement logiciel - Sprint 1", "qty": 10, "unit": "HUR", "prix": 150.0, "tva": 0.0, "cat": "E"},
+        {"desc": "Licence logicielle annuelle",        "qty":  1, "unit": "C62", "prix": 500.0, "tva": 0.0, "cat": "E"},
+        {"desc": "Formation utilisateurs",             "qty":  2, "unit": "HUR", "prix": 200.0, "tva": 0.0, "cat": "E"},
+    ]
+
+    for i, art in enumerate(articles, start=1):
+        invoice.lines.append(InvoiceLine(
+            line_id=str(i),
+            description=art["desc"],
+            quantity=art["qty"],
+            unit_code=art["unit"],
+            unit_price=art["prix"],
+            vat_rate=art["tva"],
+            vat_category=art["cat"],   # "E" = exonéré (franchise TVA)
+        ))
+
+    xml = generate_facturx_xml(invoice, template_dir=".", output_file="factur-x.xml")
+
+    print(f"✅ Fichier généré : factur-x.xml")
+    print(f"   Total HT  : {invoice.total_ht:.2f} €")
+    print(f"   TVA 20%   : {invoice.total_tva:.2f} €")
+    print(f"   Total TTC : {invoice.total_ttc:.2f} €")

requirements.txt

@@ -8,3 +8,5 @@ pydantic==2.9.2
 pydantic-settings==2.5.2
 bcrypt==4.2.0
 itsdangerous==2.2.0
+factur-x==3.16
+pikepdf==10.5.0

routers/factures.py

@@ -11,7 +11,8 @@ from numerotation import generer_numero_facture
 from config import settings
 from auth import get_current_user
 from template_helper import render
-from generate_facturx_basic import Address, Party, Invoice, InvoiceLine, build_facturx
+from generate_facturx_jinja2 import Address, Party, Invoice, InvoiceLine, generate_facturx_xml
+from facturx import generate_from_binary
 
 router = APIRouter(prefix="/factures", tags=["factures"], dependencies=[Depends(get_current_user)])
 templates = Jinja2Templates(directory="templates")
@@ -156,27 +157,66 @@ def changer_statut_facture(
     db.commit()
     return RedirectResponse(f"/factures/{facture_id}", status_code=303)
 
+from generate_facturx_jinja2 import  Invoice, Party, Address, InvoiceLine, filter_amount, filter_datefmt
 
 @router.get("/{facture_id}/pdf")
-def telecharger_pdf(facture_id: int, db: Session = Depends(get_db)):
-    from weasyprint import HTML
+def telecharger_pdf(request: Request, facture_id: int, db: Session = Depends(get_db)):
+    from weasyprint import HTML, Attachment
+    from facturx import generate_from_binary
+    import hashlib
+    import pikepdf
+    from pikepdf import Name
+    import io
+
     facture = db.query(Facture).get(facture_id)
     if not facture:
         raise HTTPException(status_code=404)
 
+    # 1. XML Factur-X
+    invoice = get_invoice_data(facture_id, db)
+    xml_str = generate_facturx_xml(invoice)
+    xml_bytes = xml_str.encode("utf-8")
+
+    # 2. Rendu HTML → PDF simple (pas PDF/A-3 ici)
     html_content = templates.get_template("pdf/facture.html").render({
         "facture": facture,
         "settings": settings,
     })
+    pdf_bytes = HTML(string=html_content, base_url=".").write_pdf(
+        pdf_variant="pdf/a-3b",
+    )
 
-    pdf_bytes = HTML(string=html_content, base_url=".").write_pdf()
+    # 3. generate_from_binary gère :
+    #    - l'intégration du XML
+    #    - les métadonnées XMP Factur-X (DocumentType, DocumentFileName, etc.)
+    #    - la conformité PDF/A-3b
+    pdf_bytes = generate_from_binary(
+        pdf_bytes,
+        xml_bytes,
+        flavor="factur-x",
+        level="BASIC",
+    )
+
+    # 4. Corriger uniquement /EF/F/Subtype → /text/xml avec pikepdf
+    pdf_io = io.BytesIO(pdf_bytes)
+    with pikepdf.open(pdf_io) as pdf:
+        names = pdf.Root.Names.EmbeddedFiles.Names
+        i = 0
+        while i < len(names):
+            i += 1  # sauter la clé (string)
+            if i < len(names):
+                obj = names[i]
+                try:
+                    obj.EF.F.Subtype = Name("/text/xml")
+                except Exception:
+                    pass
+            i += 1
+
+        output = io.BytesIO()
+        pdf.save(output)
+        pdf_bytes = output.getvalue()
 
     filename = f"facture-{facture.numero}.pdf"
-
-    tree = build_facturx(generate_xml (facture_id, db))
-    output_file = "factur-x.xml"
-    tree.write(output_file, xml_declaration=True, encoding="UTF-8", pretty_print=True)
-
     return Response(
         content=pdf_bytes,
         media_type="application/pdf",
@@ -194,7 +234,7 @@ def apercu_pdf(request: Request, facture_id: int, db: Session = Depends(get_db))
         "settings": settings,
     })
 
-def generate_xml(facture_id: int, db: Session):
+def get_invoice_data(facture_id: int, db: Session):
     facture = db.query(Facture).get(facture_id)
     invoice = Invoice(
         number=facture.numero,
@@ -228,11 +268,8 @@ def generate_xml(facture_id: int, db: Session):
             ),
         ),
 
-
-
         payment_means_code="30",   # 30 = virement bancaire
         iban=settings.asso_iban,
-        bic=settings.asso_bic,
         payment_reference=facture.devis_origine.numero,
     )
 
@@ -243,6 +280,7 @@ def generate_xml(facture_id: int, db: Session):
             quantity=l.quantite,
             unit_code="C62",
             unit_price=l.prix_unitaire_ht,
+            vat_category="E",
             vat_rate=0.0,
             ))
 

template_helper.py

@@ -3,7 +3,7 @@ Helper pour injecter automatiquement current_user dans le contexte Jinja2.
 """
 from fastapi import Request
 from fastapi.templating import Jinja2Templates
-from starlette.responses import HTMLResponse
+from starlette.responses import HTMLResponse, Response
 
 
 def render(templates: Jinja2Templates, template_name: str,

templates/pdf/facture.html

@@ -4,10 +4,22 @@
     <meta charset="UTF-8">
     <style>
         @page {
+
             size: A4;
             margin: 1.5cm 1.8cm;
+
+        /* ── PDF/A-3 : profil colorimétrique sRGB obligatoire ──
+           WeasyPrint >= 53 supporte l'OutputIntent via cette directive.
+           Téléchargez sRGB_v4_ICC_preference.icc depuis ICC et placez-le
+           dans static/icc/ ou utilisez le chemin absolu. */
+            @pdf-output-intent url('/static/icc/sRGB_v4_ICC_preference.icc');
+        }
+        * {
+            margin: 0;
+            padding: 0;
+            box-sizing: border-box;
+            -webkit-print-color-adjust: exact;
         }
-        * { margin: 0; padding: 0; box-sizing: border-box; }
         body {
             font-family: 'DejaVu Sans', Arial, sans-serif;
             font-size: 10pt;
@@ -26,8 +38,11 @@
             color: #2c3e50;
             margin-bottom: 0.3em;
         }
-        .emetteur p { font-size: 9pt; color: #555; line-height: 1.6; }
-
+        .emetteur p {
+            font-size: 9pt;
+            color: #555555;   /* éviter les raccourcis CSS #555 → #555555 explicite */
+            line-height: 1.6;
+        }
         .facture-titre {
             text-align: right;
         }
@@ -40,12 +55,12 @@
         .facture-titre .numero {
             font-size: 13pt;
             font-weight: bold;
-            color: #e74c3c;
+            color: #c0392b;   /* #e74c3c remplacé par équivalent moins saturé → moins de gamut issues */
             margin-top: 0.2em;
         }
         .facture-titre .dates {
             font-size: 9pt;
-            color: #555;
+            color: #555555;
             margin-top: 0.5em;
             line-height: 1.8;
         }
@@ -66,7 +81,7 @@
             font-size: 8pt;
             text-transform: uppercase;
             letter-spacing: 1px;
-            color: #888;
+            color: #888888;
             margin-bottom: 0.7em;
             border-bottom: 1px solid #eee;
             padding-bottom: 0.4em;
@@ -128,7 +143,7 @@
 
         .tva-mention {
             font-size: 8.5pt;
-            color: #666;
+            color: #666666;
             font-style: italic;
             text-align: right;
             margin-bottom: 1.5em;
@@ -138,7 +153,7 @@
             border-top: 1px solid #ddd;
             padding-top: 1em;
             font-size: 8.5pt;
-            color: #555;
+            color: #555555;
             line-height: 1.7;
         }
         .footer-info .conditions {
@@ -146,7 +161,7 @@
         }
         .footer-info .penalites {
             font-size: 8pt;
-            color: #888;
+            color: #888888;
         }
         .footer-info .iban {
             margin-top: 0.5em;
@@ -155,7 +170,7 @@
 
         .devis-ref {
             font-size: 8.5pt;
-            color: #888;
+            color: #888888;
             margin-bottom: 1.5em;
         }
 
@@ -165,7 +180,7 @@
             padding: 0.7em 1em;
             font-size: 9pt;
             margin-bottom: 1.5em;
-            color: #444;
+            color: #444444;
         }
     </style>
 </head>

templates/xml/factur-x-basic.xml.j2

@@ -0,0 +1,176 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<rsm:CrossIndustryInvoice
+    xmlns:rsm="urn:un:unece:uncefact:data:standard:CrossIndustryInvoice:100"
+    xmlns:ram="urn:un:unece:uncefact:data:standard:ReusableAggregateBusinessInformationEntity:100"
+    xmlns:udt="urn:un:unece:uncefact:data:standard:UnqualifiedDataType:100"
+    xmlns:qdt="urn:un:unece:uncefact:data:standard:QualifiedDataType:100"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+
+  <!-- 1. CONTEXTE -->
+  <rsm:ExchangedDocumentContext>
+    <ram:GuidelineSpecifiedDocumentContextParameter>
+      <ram:ID>urn:cen.eu:en16931:2017#compliant#urn:factur-x.eu:1p0:basic</ram:ID>
+    </ram:GuidelineSpecifiedDocumentContextParameter>
+  </rsm:ExchangedDocumentContext>
+
+  <!-- 2. EN-TÊTE FACTURE -->
+  <rsm:ExchangedDocument>
+    <ram:ID>{{ invoice.number }}</ram:ID>
+    <ram:TypeCode>{{ invoice.type_code }}</ram:TypeCode>
+    <ram:IssueDateTime>
+      <udt:DateTimeString format="102">{{ invoice.issue_date | datefmt }}</udt:DateTimeString>
+    </ram:IssueDateTime>
+    {% if invoice.note %}
+    <ram:IncludedNote>
+      <ram:Content>{{ invoice.note }}</ram:Content>
+    </ram:IncludedNote>
+    {% endif %}
+  </rsm:ExchangedDocument>
+
+  <!-- 3. TRANSACTION COMMERCIALE -->
+  <rsm:SupplyChainTradeTransaction>
+
+    <!-- 3a. Lignes de facture -->
+    {% for line in invoice.lines %}
+    <ram:IncludedSupplyChainTradeLineItem>
+      <ram:AssociatedDocumentLineDocument>
+        <ram:LineID>{{ line.line_id }}</ram:LineID>
+      </ram:AssociatedDocumentLineDocument>
+      <ram:SpecifiedTradeProduct>
+        <ram:Name>{{ line.description }}</ram:Name>
+      </ram:SpecifiedTradeProduct>
+      <ram:SpecifiedLineTradeAgreement>
+        <ram:NetPriceProductTradePrice>
+          <ram:ChargeAmount>{{ line.unit_price | amount }}</ram:ChargeAmount>
+        </ram:NetPriceProductTradePrice>
+      </ram:SpecifiedLineTradeAgreement>
+      <ram:SpecifiedLineTradeDelivery>
+        <ram:BilledQuantity unitCode="{{ line.unit_code }}">{{ line.quantity | amount }}</ram:BilledQuantity>
+      </ram:SpecifiedLineTradeDelivery>
+      <ram:SpecifiedLineTradeSettlement>
+        <ram:ApplicableTradeTax>
+          <ram:TypeCode>VAT</ram:TypeCode>
+          <ram:CategoryCode>{{ line.vat_category }}</ram:CategoryCode>
+          <ram:RateApplicablePercent>{{ line.vat_rate | amount }}</ram:RateApplicablePercent>
+        </ram:ApplicableTradeTax>
+        <ram:SpecifiedTradeSettlementLineMonetarySummation>
+          <ram:LineTotalAmount>{{ (line.quantity * line.unit_price) | amount }}</ram:LineTotalAmount>
+        </ram:SpecifiedTradeSettlementLineMonetarySummation>
+      </ram:SpecifiedLineTradeSettlement>
+    </ram:IncludedSupplyChainTradeLineItem>
+    {% endfor %}
+
+    <!-- 3b. Accord commercial -->
+    <ram:ApplicableHeaderTradeAgreement>
+
+      <ram:SellerTradeParty>
+        <ram:Name>{{ seller.name }}</ram:Name>
+        {% if seller.siret %}
+        <ram:SpecifiedLegalOrganization>
+          <ram:ID schemeID="0002">{{ seller.siret }}</ram:ID>
+        </ram:SpecifiedLegalOrganization>
+        {% endif %}
+        {% if seller.address %}
+        <ram:PostalTradeAddress>
+          <ram:PostcodeCode>{{ seller.address.postcode }}</ram:PostcodeCode>
+          <ram:LineOne>{{ seller.address.line1 }}</ram:LineOne>
+          {% if seller.address.line2 %}
+          <ram:LineTwo>{{ seller.address.line2 }}</ram:LineTwo>
+          {% endif %}
+          <ram:CityName>{{ seller.address.city }}</ram:CityName>
+          <ram:CountryID>{{ seller.address.country_code }}</ram:CountryID>
+        </ram:PostalTradeAddress>
+        {% endif %}
+        {% if seller.vat_id %}
+        <ram:SpecifiedTaxRegistration>
+          <ram:ID schemeID="VA">{{ seller.vat_id }}</ram:ID>
+        </ram:SpecifiedTaxRegistration>
+        {% elif seller.siret %}
+        {# Franchise TVA (art. 293 B CGI) : pas de n° TVA, on utilise le SIRET avec schemeID="FC" #}
+        <ram:SpecifiedTaxRegistration>
+          <ram:ID schemeID="FC">{{ seller.siret }}</ram:ID>
+        </ram:SpecifiedTaxRegistration>
+        {% endif %}
+      </ram:SellerTradeParty>
+
+      <ram:BuyerTradeParty>
+        <ram:Name>{{ buyer.name }}</ram:Name>
+        {% if buyer.siret %}
+        <ram:SpecifiedLegalOrganization>
+          <ram:ID schemeID="0002">{{ buyer.siret }}</ram:ID>
+        </ram:SpecifiedLegalOrganization>
+        {% endif %}
+        {% if buyer.address %}
+        <ram:PostalTradeAddress>
+          <ram:PostcodeCode>{{ buyer.address.postcode }}</ram:PostcodeCode>
+          <ram:LineOne>{{ buyer.address.line1 }}</ram:LineOne>
+          {% if buyer.address.line2 %}
+          <ram:LineTwo>{{ buyer.address.line2 }}</ram:LineTwo>
+          {% endif %}
+          <ram:CityName>{{ buyer.address.city }}</ram:CityName>
+          <ram:CountryID>{{ buyer.address.country_code }}</ram:CountryID>
+        </ram:PostalTradeAddress>
+        {% endif %}
+      </ram:BuyerTradeParty>
+
+      {% if invoice.payment_reference %}
+      <ram:BuyerOrderReferencedDocument>
+        <ram:IssuerAssignedID>{{ invoice.payment_reference }}</ram:IssuerAssignedID>
+      </ram:BuyerOrderReferencedDocument>
+      {% endif %}
+
+    </ram:ApplicableHeaderTradeAgreement>
+
+    <!-- 3c. Livraison -->
+    <ram:ApplicableHeaderTradeDelivery>
+      <ram:ShipToTradeParty>
+        <ram:Name>{{ buyer.name }}</ram:Name>
+      </ram:ShipToTradeParty>
+    </ram:ApplicableHeaderTradeDelivery>
+
+    <!-- 3d. Règlement -->
+    <ram:ApplicableHeaderTradeSettlement>
+      <ram:InvoiceCurrencyCode>{{ invoice.currency }}</ram:InvoiceCurrencyCode>
+
+      <ram:SpecifiedTradeSettlementPaymentMeans>
+        <ram:TypeCode>{{ invoice.payment_means_code }}</ram:TypeCode>
+        {% if invoice.iban %}
+        <ram:PayeePartyCreditorFinancialAccount>
+          <ram:IBANID>{{ invoice.iban }}</ram:IBANID>
+        </ram:PayeePartyCreditorFinancialAccount>
+        {% endif %}
+      </ram:SpecifiedTradeSettlementPaymentMeans>
+
+      {% for tax in invoice.tax_lines %}
+      <ram:ApplicableTradeTax>
+        <ram:CalculatedAmount>{{ tax.amount | amount }}</ram:CalculatedAmount>
+        <ram:TypeCode>VAT</ram:TypeCode>
+        {% if tax.exemption_reason %}
+        <ram:ExemptionReason>{{ tax.exemption_reason }}</ram:ExemptionReason>
+        {% endif %}
+        <ram:BasisAmount>{{ tax.base_amount | amount }}</ram:BasisAmount>
+        <ram:CategoryCode>{{ tax.category }}</ram:CategoryCode>
+        <ram:RateApplicablePercent>{{ tax.rate | amount }}</ram:RateApplicablePercent>
+      </ram:ApplicableTradeTax>
+      {% endfor %}
+
+      {% if invoice.due_date %}
+      <ram:SpecifiedTradePaymentTerms>
+        <ram:DueDateDateTime>
+          <udt:DateTimeString format="102">{{ invoice.due_date | datefmt }}</udt:DateTimeString>
+        </ram:DueDateDateTime>
+      </ram:SpecifiedTradePaymentTerms>
+      {% endif %}
+
+      <ram:SpecifiedTradeSettlementHeaderMonetarySummation>
+        <ram:LineTotalAmount>{{ invoice.total_ht | amount }}</ram:LineTotalAmount>
+        <ram:TaxBasisTotalAmount>{{ invoice.total_ht | amount }}</ram:TaxBasisTotalAmount>
+        <ram:TaxTotalAmount currencyID="{{ invoice.currency }}">{{ invoice.total_tva | amount }}</ram:TaxTotalAmount>
+        <ram:GrandTotalAmount>{{ invoice.total_ttc | amount }}</ram:GrandTotalAmount>
+        <ram:DuePayableAmount>{{ invoice.total_ttc | amount }}</ram:DuePayableAmount>
+      </ram:SpecifiedTradeSettlementHeaderMonetarySummation>
+
+    </ram:ApplicableHeaderTradeSettlement>
+
+  </rsm:SupplyChainTradeTransaction>
+</rsm:CrossIndustryInvoice>