from core.models import Task, ProgressReport

class SheetMapper:
    @staticmethod
    def map_rows_to_report(rows: list[list]) -> ProgressReport:
        tasks = []
        current_phase = "General"
        
        for row in rows:
            if not row or len(row) < 2:
                continue
                
            # Detect Phase row (e.g. Row 1: ['', 'Phase 1: ...'])
            # Phase rows usually have few columns or column 2/3 is empty
            if len(row) <= 2 or (len(row) > 2 and row[2] == ""):
                if row[1] and "Phase" in row[1]:
                    current_phase = row[1].strip()
                continue
            
            # Detect Task row (e.g. Row 2: ['', '1.1', 'Task Name', ...])
            if len(row) >= 10:
                task = Task(
                    phase=current_phase,
                    task_id=row[1],
                    task_name=row[2],
                    assignee=row[3],
                    start_date=row[4],
                    end_date=row[5],
                    progress_val=row[8],
                    status=row[9]
                )
                tasks.append(task)
        
        return ProgressReport(tasks=tasks)