"""
Convert pytest coverage output to markdown table format.
"""

import re
import sys


def coverage_to_markdown(output_file: str) -> None:
    """Convert pytest coverage output to markdown table.

    Args:
        output_file: Path to the pytest coverage text report.

    Returns:
        None: The function prints the markdown table to stdout.
    """
    try:
        with open(output_file) as f:
            content = f.read()
    except FileNotFoundError:
        print("| Error | Coverage output file not found | - | - | - |")
        return

    # Find the coverage section
    lines = content.split("\n")
    in_coverage_section = False
    coverage_lines = []
    total_line = ""

    for line in lines:
        if "Name" in line and "Stmts" in line and "Miss" in line and "Cover" in line:
            in_coverage_section = True
            continue
        elif in_coverage_section:
            if line.strip() == "" or line.startswith("="):
                continue
            elif line.startswith("TOTAL"):
                total_line = line.strip()
                break
            elif line.strip():
                coverage_lines.append(line.strip())

    # Print markdown table header
    print("| File | Statements | Missing | Coverage | Missing Lines |")
    print("|------|------------|---------|----------|---------------|")

    # Parse each coverage line
    for line in coverage_lines:
        # Match pattern: filename.py   123   45   67%   12, 34-56, 78
        match = re.match(r"^([^\s]+\.py)\s+(\d+)\s+(\d+)\s+(\d+)%\s*(.*)$", line)
        if match:
            filename = match.group(1)
            statements = int(match.group(2))
            missing = int(match.group(3))
            coverage_pct = int(match.group(4))
            missing_details = match.group(5).strip()

            # Clean up filename (remove src/ prefix if present)
            clean_filename = filename.replace("src/", "")

            # Format missing lines
            if missing_details and missing_details != "-":
                # Limit the missing details to avoid overly long tables
                if len(missing_details) > 40:
                    missing_details = missing_details[:37] + "..."
                missing_cell = f"`{missing_details}`"
            else:
                missing_cell = "None"

            print(
                f"| {clean_filename} | {statements} | {missing} | {coverage_pct}% | {missing_cell} |"
            )

    # Add total row
    if total_line:
        match = re.match(r"^TOTAL\s+(\d+)\s+(\d+)\s+(\d+)%", total_line)
        if match:
            statements = int(match.group(1))
            missing = int(match.group(2))
            coverage_pct = int(match.group(3))
            print(
                f"| **TOTAL** | **{statements}** | **{missing}** | **{coverage_pct}%** | - |"
            )


if __name__ == "__main__":
    output_file = sys.argv[1] if len(sys.argv) > 1 else "pytest-output.txt"
    coverage_to_markdown(output_file)