invoicing-app/utils.py at main · EwenLive/invoicing-app · GitHub

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from fpdf import FPDF

def generate_invoice_pdf(invoice, client, supplier, target):
    pdf = FPDF()
    pdf.add_page()

    # --- TES INFOS (L'intermédiaire / Ta boutique) ---
    # Tu peux aussi mettre ça dans ton fichier .env
    MY_COMPANY_NAME = "MA BOUTIQUE E-COMMERCE"
    MY_COMPANY_ADDRESS = "123 Rue du Commerce, 75001 Paris, France"

    # --- STYLE & COULEURS ---
    primary_color = (41, 128, 185) # Bleu pro

    # --- LOGIQUE DE L'EN-TÊTE ---
    if target == "client":
        title = "FACTURE CLIENT"
        sender_name = MY_COMPANY_NAME
        sender_address = MY_COMPANY_ADDRESS
        receiver_name = client.name
        receiver_address = client.address if client.address else ""
        amount = invoice.amount_client
    else:
        title = "FACTURE FOURNISSEUR"
        sender_name = supplier.name
        sender_address = supplier.address if supplier.address else ""
        receiver_name = MY_COMPANY_NAME
        receiver_address = MY_COMPANY_ADDRESS
        amount = invoice.amount_supplier

    # --- DESSIN DU PDF ---
    pdf.set_font("Arial", "B", 20)
    pdf.set_text_color(*primary_color)
    pdf.cell(190, 15, txt=title, ln=True, align='L') # type: ignore

    pdf.set_line_width(0.5)
    pdf.set_draw_color(*primary_color)
    pdf.line(10, 25, 200, 25)
    pdf.ln(10)

    # --- INFOS ÉMETTEUR & RÉCEPTEUR ---
    pdf.set_text_color(0, 0, 0)
    pdf.set_font("Arial", "B", 10)
    pdf.cell(95, 5, "DE LA PART DE :", ln=0)
    pdf.cell(95, 5, "DESTINÉ À :", ln=1)

    pdf.set_font("Arial", "", 10)
    pdf.cell(95, 5, f"{sender_name}", ln=0)
    pdf.cell(95, 5, f"{receiver_name}", ln=1)

    # Gestion des adresses (si vides)
    pdf.multi_cell(95, 5, f"{sender_address}")
    # Positionnement manuel pour la deuxième colonne de l'adresse destinataire
    curr_y = pdf.get_y()
    pdf.set_xy(105, curr_y - 5)
    pdf.multi_cell(95, 5, f"{receiver_address}")

    pdf.ln(10)

    # --- DÉTAILS FACTURE ---
    pdf.set_fill_color(245, 245, 245)
    pdf.set_font("Arial", "B", 10)
    pdf.cell(60, 10, f"Numéro : {invoice.invoice_number}", border=0, fill=True)
    pdf.cell(70, 10, f"Date : {invoice.created_at.strftime('%d/%m/%Y')}", border=0, fill=True)
    pdf.cell(60, 10, f"Statut : {invoice.status.upper()}", border=0, fill=True, ln=1)
    pdf.ln(10)

    # --- TABLEAU DES PRIX ---
    pdf.set_font("Arial", "B", 11)
    pdf.set_text_color(255, 255, 255)
    pdf.set_fill_color(*primary_color)
    pdf.cell(140, 10, " Description des services", border=0, fill=True)
    pdf.cell(50, 10, "Total HT ", border=0, fill=True, ln=1, align='R')

    pdf.set_text_color(0, 0, 0)
    pdf.set_font("Arial", "", 11)
    desc = "Prestation de service / Commande Shopify" if target == "client" else f"Achat de marchandises / Commande {invoice.invoice_number}"
    pdf.cell(140, 12, f" {desc}", border="B")
    pdf.cell(50, 12, f"{amount:.2f} EUR ", border="B", ln=1, align='R')

# --- TOTAL ---
    pdf.ln(10)
    pdf.set_font("Arial", "B", 12)
    pdf.cell(140, 10, "TOTAL A PAYER", align='R')
    pdf.set_text_color(*primary_color)
    pdf.cell(50, 10, f"{amount:.2f} EUR", align='R')

    # FIX FINAL :
    # 1. On récupère le contenu (qui est déjà un bytearray en fpdf2)
    pdf_output = pdf.output()

    # 2. On s'assure que c'est bien au format 'bytes' pour FastAPI
    return bytes(pdf_output)