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import sqlite3
import models
import ui
def log_weight(conn: sqlite3.Connection) -> None:
ui.clear_screen()
ui.print_header("Log Weight")
date_time = ui.prompt_datetime("Date/Time")
weight = ui.prompt_float("Weight (kg): ", min_val=0.1)
assert weight is not None
models.add_weight_log(conn, date_time, weight)
print(f"Logged {weight:.1f}kg.")
ui.pause()
def _fmt_diff(current: float, previous: float) -> str:
diff = round(current - previous, 1)
if diff > 0:
return f"+{diff:.1f}"
elif diff < 0:
return f"{diff:.1f}"
return "0.0"
def view_weight_logs(conn: sqlite3.Connection) -> None:
while True:
ui.clear_screen()
logs = models.list_weight_logs(conn)
if not logs:
print("\nNo weight logs recorded yet.")
ui.pause()
return
ui.print_header("Weight Logs")
# Logs are newest-first; diff compares to the next row (previous in time)
rows = []
for i, log in enumerate(logs):
weight = log["weight"]
if i < len(logs) - 1:
diff = _fmt_diff(weight, logs[i + 1]["weight"])
else:
diff = ""
rows.append(
[
str(i + 1),
log["date_time"],
f"{weight:.1f}",
diff,
]
)
ui.print_table(["#", "Date", "Weight (kg)", "Diff"], rows)
choice = input("\nSelect # to delete ('b' = back): ").strip()
if choice.lower() == "b":
break
try:
idx = int(choice) - 1
if idx < 0 or idx >= len(logs):
print("Invalid selection.")
continue
except ValueError:
print("Invalid input.")
continue
if ui.confirm(f"Delete log from {logs[idx]['date_time']}?"):
models.delete_weight_log(conn, logs[idx]["id"])
print("Log deleted.")
ui.pause()
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