from datetime import datetime
from pathlib import Path

import matplotlib.dates as mdates
import matplotlib.pyplot as plt


months = [datetime(2026, month, 1) for month in range(1, 13)]
tickets_closed = [42, 45, 47, 51, 55, 58, 63, 61, 66, 70, 74, 79]

fig, ax = plt.subplots(figsize=(7, 4), layout="constrained")
ax.plot(months, tickets_closed, marker="o", linewidth=2)
ax.set_title("Support tickets closed by month")
ax.set_xlabel("Month closed")
ax.set_ylabel("Tickets closed")
ax.grid(True, axis="y", alpha=0.3)
ax.set_xlim(months[0], months[-1])

locator = mdates.MonthLocator(bymonth=range(1, 13, 2))
ax.xaxis.set_major_locator(locator)
ax.xaxis.set_major_formatter(mdates.DateFormatter("%b %Y"))
ax.tick_params(axis="x", rotation=30)

fig.canvas.draw()
tick_labels = [label.get_text() for label in ax.get_xticklabels() if label.get_text()]

output = Path("support-tickets-date-axis.png")
fig.savefig(output, dpi=160)

print(f"formatted tick labels: {', '.join(tick_labels)}")
print(f"saved chart: {output}")

plt.close(fig)