import os
from app.db.session import SessionLocal
from app.models import Task

def sync_backlog():
    filepath = "BACKLOG.md"
    if not os.path.exists(filepath):
        return False
    
    db = SessionLocal()
    try:
        with open(filepath, "r", encoding="utf-8") as f:
            lines = f.readlines()
            
        table_lines = [l.strip() for l in lines if l.strip().startswith("|")]
        
        if len(table_lines) > 2:
            data_lines = table_lines[2:] # Skip header and separator
            
            for line in data_lines:
                cols = [c.strip() for c in line.split("|")]
                if len(cols) >= 8:
                    todo = cols[1]
                    details = cols[2]
                    ansprechpartner = cols[3]
                    quelle = cols[4]
                    deadline = cols[5]
                    prioritaet = cols[6].lower()
                    umfang = cols[7]
                    
                    if not todo:
                        continue
                        
                    priority_val = 4
                    if "sehr hoch" in prioritaet:
                        priority_val = 1
                    elif "hoch" in prioritaet:
                        priority_val = 2
                    elif "mittel" in prioritaet:
                        priority_val = 3
                        
                    # Build a structured description
                    description_parts = []
                    if details: description_parts.append(f"Details: {details}")
                    if ansprechpartner: description_parts.append(f"Ansprechpartner: {ansprechpartner}")
                    if deadline: description_parts.append(f"Deadline: {deadline}")
                    if umfang: description_parts.append(f"Umfang: {umfang}")
                    
                    full_desc = "\n".join(description_parts)
                    
                    existing_task = db.query(Task).filter(Task.title == todo).first()
                    if existing_task:
                        existing_task.description = full_desc
                        existing_task.origin = quelle
                        existing_task.priority = priority_val
                    else:
                        new_task = Task(
                            title=todo,
                            description=full_desc,
                            origin=quelle,
                            priority=priority_val,
                            status="open"
                        )
                        db.add(new_task)
            
            db.commit()
            return True
    except Exception as e:
        print(f"Error syncing backlog: {e}")
        db.rollback()
        return False
    finally:
        db.close()
    
    return False

if __name__ == "__main__":
    success = sync_backlog()
    print(f"Sync successful: {success}")