from fpdf import FPDF
from datetime import datetime

class ReportGenerator:
    def __init__(self):
        self.pdf = FPDF()
        self.pdf.add_page()
        self.pdf.set_font("Helvetica", size=12)
        
    def add_header(self):
        self.pdf.set_font("Helvetica", style="B", size=16)
        self.pdf.cell(200, 10, txt="Marketing Content Validation Report", ln=True, align='C')
        self.pdf.set_font("Helvetica", size=10)
        self.pdf.cell(200, 10, txt=f"Generated on: {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}", ln=True, align='R')
        self.pdf.ln(10)
        
    def add_input_text(self, text):
        self.pdf.set_font("Helvetica", style="B", size=12)
        self.pdf.cell(200, 10, txt="Input Marketing Content:", ln=True)
        self.pdf.set_font("Helvetica", size=12)
        
        # Clean and encode the text
        cleaned_text = (text
            .replace('"', '"')
            .replace('"', '"')
            .replace(''', "'")
            .replace(''', "'")
            .replace('—', '-')
            .replace('–', '-')
            .encode('ascii', 'replace')
            .decode()
        )
        
        self.pdf.multi_cell(0, 10, txt=cleaned_text)
        self.pdf.ln(10)
        
    def add_check_result(self, check_name, status, details=None):
        status_symbols = {
            "pass": "(PASS)",
            "fail": "(FAIL)",
            "warning": "(WARNING)"
        }
        
        self.pdf.set_font("Helvetica", style="B", size=12)
        status_symbol = status_symbols.get(status.lower(), "(?)")
        self.pdf.cell(0, 10, txt=f"{check_name} {status_symbol}", ln=True)
        
        if details:
            self.pdf.set_font("Helvetica", size=10)
            # Clean and encode the details
            cleaned_details = (details
                .replace('"', '"')
                .replace('"', '"')
                .replace(''', "'")
                .replace(''', "'")
                .replace('—', '-')
                .replace('–', '-')
                .encode('ascii', 'replace')
                .decode()
            )
            self.pdf.multi_cell(0, 10, txt=cleaned_details)
        self.pdf.ln(5)
        
    def save_report(self):
        timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
        filename = f"marketing_report_{timestamp}.pdf"
        try:
            self.pdf.output(filename)
            return filename
        except Exception as e:
            print(f"Error saving PDF: {str(e)}")
            return None