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Krzysztof kuhy Rudnicki
e761926df4
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Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
99 lines
3.2 KiB
Python
99 lines
3.2 KiB
Python
"""CLI handler for the ``init`` subcommand.
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Split out of :mod:`diet_guard._cli` to hold the repo's 250-line cap, following
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the same thin-per-subcommand-handler shape as ``_cli_gate.py`` (``gate``),
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``_cli_log.py`` (``ate``) and ``_cli_sync.py`` (``sync``).
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The biometrics prompted for here seed the Body profile too (height, sex, a
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birth date estimated from the typed age, and today's weigh-in), so BMI and
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ideal weight work straight after ``init``. Refine the birth date with
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``diet_guard profile --birth``. See ``docs/DOCS-body.md``.
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"""
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from __future__ import annotations
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from typing import TYPE_CHECKING
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from diet_guard._body_store import set_profile, set_weight
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from diet_guard._budget import write_budget
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from diet_guard._budget_biometrics import Biometrics, compute_target_budget
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from diet_guard._state import now_local
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if TYPE_CHECKING:
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from collections.abc import Callable
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# Accepted answers for the sex prompt that map to the male BMR constant.
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MALE_ANSWERS = {"m", "male"}
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FEMALE_ANSWERS = {"f", "female"}
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def read_init_inputs(
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emit: Callable[[str], None],
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ask: Callable[[str], str],
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) -> tuple[Biometrics, float, float] | None:
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"""Prompt for biometrics on stdin; return (bio, activity, deficit) or None.
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Returns None (after printing why) on any unparsable or out-of-range input,
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so a typo never sets a wrong budget.
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"""
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try:
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weight = float(ask("weight in kg:"))
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height = float(ask("height in cm:"))
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age = float(ask("age in years:"))
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sex_raw = ask("sex (m/f):").lower()
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activity = float(
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ask(
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"activity factor "
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"(1.2 sedentary / 1.375 light / 1.55 moderate / 1.725 active):",
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),
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)
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deficit = float(ask("daily deficit in kcal (e.g. 200):"))
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except ValueError:
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emit("that was not a number; nothing was set.")
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return None
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if sex_raw in MALE_ANSWERS:
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is_male = True
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elif sex_raw in FEMALE_ANSWERS:
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is_male = False
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else:
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emit('sex must be "m" or "f"; nothing was set.')
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return None
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bio = Biometrics(
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weight_kg=weight,
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height_cm=height,
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age_years=age,
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is_male=is_male,
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)
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return bio, activity, deficit
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def cmd_init(
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emit: Callable[[str], None],
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ask: Callable[[str], str],
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) -> int:
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"""Compute the starting budget from biometrics and write it."""
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inputs = read_init_inputs(emit, ask)
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if inputs is None:
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return 2
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bio, activity, deficit = inputs
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budget = compute_target_budget(
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bio,
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activity_factor=activity,
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deficit_kcal=deficit,
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)
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write_budget(budget, weight_kg=bio.weight_kg)
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today = now_local().date()
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# Same month/day as today, so the estimated age is exact right now.
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birth = today.replace(year=today.year - int(bio.age_years), day=min(today.day, 28))
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set_profile(
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birth=birth.isoformat(),
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height_cm=bio.height_cm,
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sex="m" if bio.is_male else "f",
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)
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set_weight(today.isoformat(), bio.weight_kg, "init")
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emit(f"budget computed from your biometrics: {budget:g} kcal/day.")
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emit("edit it any time from the gate's calendar tab or the phone app.")
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return 0
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