# Timestamp logging pattern

import time
import logging

class TimedLogger:
    def __init__(self):
        self.start = time.time()

    def log(self, msg: str):
        elapsed = time.time() - self.start
        logging.info(f"[{elapsed:.2f}s] {msg}")

# Usage
timer = TimedLogger()
timer.log("Initialization started")

# ... auto login ...
timer.log("Auto login complete")

# ... GitHub API calls ...
timer.log("Banner data loaded")

# ... other init ...
timer.log("Ready")

# Actual log output (before optimization)

[0.00s] Initialization started
[0.12s] DB connection established
[3.45s] Config file loaded
[13.52s] Auto login complete          ← 10 seconds
[56.89s] Banner data loaded           ← 43 seconds!!
[66.91s] Heartbeat tracker started
[76.93s] Auto-start wait complete     ← 10 seconds
[77.01s] Ready                        ← 77 seconds total

# Before — 44 individual API calls

# Individual API call per file
for banner_id in banner_ids:  # 44 items
    response = github_api.get_content(
        repo="my-org/banners",
        path=f"banners/{banner_id}.json"
    )
    banners.append(parse_banner(response))

# After — directory listing + pattern matching

# 1. Fetch entire directory listing at once (1 API call)
all_files = github_api.get_contents(
    repo="my-org/banners",
    path="banners/"
)

# 2. Filter by pattern locally (0 API calls)
target_files = [
    f for f in all_files
    if f.name.startswith("banner_") and f.name.endswith(".json")
    and extract_id(f.name) in banner_ids
]

# 3. Fetch only the files we need (~5 API calls)
for f in target_files[:5]:  # Top 5 only
    content = github_api.get_content(repo="my-org/banners", path=f.path)
    banners.append(parse_banner(content))

# Before — fixed 10-second sleep

login_button.click()
time.sleep(10)  # Wait 10 seconds

# After — event-driven wait with 3s timeout

login_button.click()

# Detect actual login completion (URL change or element appears)
WebDriverWait(driver, timeout=3).until(
    lambda d: "login" not in d.current_url
             or EC.presence_of_element_located((By.ID, "user-menu"))(d)
)
# Moves on immediately when done. Max wait: 3 seconds