Lab: Log Parser

In this lab you'll parse a multi-line log string (using io.StringIO to simulate file reading) and produce a summary report.

The Log Format

Each log line follows this format:

Example: [2024-01-15 08:32:01] ERROR: Database connection timeout

Levels are: INFO, WARNING, ERROR, DEBUG

Your Task

Write a parse_logs(log_data: str) function that:

1. Reads the log string line by line using io.StringIO
2. Counts total lines (excluding empty lines)
3. Counts occurrences of each log level
4. Collects all ERROR messages into a list
5. Extracts all timestamps into a list

Then call parse_logs(LOG_DATA) and print:

• Total line count
• Count per level
• List of error messages
• First and last timestamp

Requirements

• Use io.StringIO to wrap the string and read it like a file
• Print Total lines: N
• Print ERROR count: N
• Print WARNING count: N
• Print INFO count: N
• Print each ERROR message on its own line prefixed with ERROR:
• Print First log: TIMESTAMP and Last log: TIMESTAMP