"""
Technical Debt Calculator

Calculates:
- SQALE rating (A-E)
- Remediation effort estimates
- Debt categorization
"""

from pathlib import Path
from typing import Dict, List


def analyze(codebase_path: Path, metadata: Dict) -> List[Dict]:
    """
    Calculate technical debt metrics.

    Args:
        codebase_path: Path to codebase
        metadata: Project metadata

    Returns:
        List of technical debt findings
    """
    findings = []

    # Placeholder implementation
    # In production, this would calculate SQALE rating based on all findings

    return findings


def calculate_sqale_rating(all_findings: List[Dict], total_loc: int) -> str:
    """
    Calculate SQALE rating (A-E) based on findings.

    Args:
        all_findings: All findings from all analyzers
        total_loc: Total lines of code

    Returns:
        SQALE rating (A, B, C, D, or E)
    """
    # Estimate remediation time in hours
    severity_hours = {
        'critical': 8,
        'high': 4,
        'medium': 2,
        'low': 0.5
    }

    total_remediation_hours = sum(
        severity_hours.get(finding.get('severity', 'low'), 0.5)
        for finding in all_findings
    )

    # Estimate development time (1 hour per 50 LOC is conservative)
    development_hours = total_loc / 50

    # Calculate debt ratio
    if development_hours == 0:
        debt_ratio = 0
    else:
        debt_ratio = (total_remediation_hours / development_hours) * 100

    # Assign SQALE rating
    if debt_ratio <= 5:
        return 'A'
    elif debt_ratio <= 10:
        return 'B'
    elif debt_ratio <= 20:
        return 'C'
    elif debt_ratio <= 50:
        return 'D'
    else:
        return 'E'