"""
check_callback_attempts.py -- offline: the 3-checkbox re-contact tracker (crud/callback_attempts.py,
2026-09-29). No database, no network -- throwaway in-memory SQLite.

    uv run python scripts/check_callback_attempts.py

Covers:
  * record_attempt() appends a UTC timestamp per call, caps at 3 (a 4th call is a no-op)
  * undo_last_attempt() pops the most recently checked box, is a no-op on an empty list
  * next_attempt_due() is None with 0 or 3 attempts recorded, and gives the right gap otherwise
    (48h after the 1st, 72h after the 2nd)
  * the weekend push: a due date that would land on Saturday or Sunday (PKT) rolls forward to Monday,
    same time -- checked by picking a 1st-attempt timestamp that lands the 48h-later due date ON a
    Saturday with NO push, to prove the push is what moves it
  * the three contexts (callback / no_show / proposal) are genuinely independent -- checking one does not
    touch the other two on the same lead
  * LeadOut.from_model() serializes the raw history with a "Z" suffix (matching every other
    backend-generated timestamp) and exposes the same due date computed above
"""

from __future__ import annotations

import sys
from datetime import datetime, timedelta
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent.parent))

from sqlalchemy import create_engine  # noqa: E402
from sqlalchemy.orm import sessionmaker  # noqa: E402
from sqlalchemy.pool import StaticPool  # noqa: E402

import app.models  # noqa: E402,F401
from app.crud import callback_attempts as crud  # noqa: E402
from app.crud import leads as crud_leads  # noqa: E402
from app.database import Base  # noqa: E402
from app.schemas.lead import LeadOut  # noqa: E402

FAILED = 0


def check(label: str, ok: bool, detail: str = "") -> None:
    global FAILED
    FAILED += 0 if ok else 1
    print(f"  [{'ok  ' if ok else 'FAIL'}] {label}" + ("" if ok else f"   {detail}"))


def main() -> int:
    engine = create_engine("sqlite://", connect_args={"check_same_thread": False}, poolclass=StaticPool)
    Base.metadata.create_all(engine)
    db = sessionmaker(bind=engine)()

    lead = crud_leads.add_lead_dict(db, {"company_name": "Ancient Cherry Yachts"})

    print("\nrecord_attempt: appends, caps at 3")
    check("starts empty", (lead.callback_attempts or []) == [])
    crud.record_attempt(db, lead, "callback")
    check("1 recorded", len(lead.callback_attempts) == 1)
    crud.record_attempt(db, lead, "callback")
    crud.record_attempt(db, lead, "callback")
    check("3 recorded", len(lead.callback_attempts) == 3)
    third = list(lead.callback_attempts)
    crud.record_attempt(db, lead, "callback")
    check("4th call is a no-op, still 3", lead.callback_attempts == third)

    print("\nundo_last_attempt: pops the most recent, no-op on empty")
    crud.undo_last_attempt(db, lead, "callback")
    check("back to 2 after undo", len(lead.callback_attempts) == 2)
    crud.undo_last_attempt(db, lead, "callback")
    crud.undo_last_attempt(db, lead, "callback")
    check("back to 0 after 2 more undos", lead.callback_attempts == [])
    crud.undo_last_attempt(db, lead, "callback")
    check("undo on empty is a no-op, no crash", lead.callback_attempts == [])

    print("\ncontexts are independent")
    lead2 = crud_leads.add_lead_dict(db, {"company_name": "Raspy Darkness Marine"})
    crud.record_attempt(db, lead2, "callback")
    crud.record_attempt(db, lead2, "no_show")
    crud.record_attempt(db, lead2, "no_show")
    check("callback has 1", len(lead2.callback_attempts) == 1)
    check("no_show has 2, not shared with callback's count", len(lead2.no_show_attempts) == 2)
    check("proposal untouched", (lead2.proposal_attempts or []) == [])

    print("\nnext_attempt_due: gap math")
    check("0 attempts -> None (nothing to schedule yet)", crud.next_attempt_due([]) is None)
    check("3 attempts -> None (confirm point, not a reschedule point)", crud.next_attempt_due(["a", "b", "c"]) is None)

    # A Wednesday timestamp: 48h later is Friday -- no weekend push needed, isolates the gap math itself
    # from the push logic (checked separately below).
    wed = datetime(2026, 9, 30, 10, 0, 0)  # 2026-09-30 is a Wednesday
    due_after_1 = crud.next_attempt_due([wed.isoformat()])
    check(
        "after 1 attempt, due is +48h (no weekend in the way)",
        due_after_1 == (wed + timedelta(hours=48)).isoformat(),
        str(due_after_1),
    )
    due_after_2 = crud.next_attempt_due([wed.isoformat(), (wed + timedelta(hours=48)).isoformat()])
    check(
        "after 2 attempts, due is +72h from the 2nd (not the 1st)",
        due_after_2 == (wed + timedelta(hours=48 + 72)).isoformat(),
        str(due_after_2),
    )

    print("\nweekend push: a due date landing on Sat/Sun (PKT) rolls to Monday same time")
    # Thursday 2026-10-01, 10:00 PKT +48h (raw, no push) = Saturday 2026-10-03, 10:00 PKT -- lands ON a
    # weekend with NO push, so this specific timestamp proves the push actually moved it, not that it
    # happened to land on a weekday anyway. Stored as naive UTC (matching _utcnow()), so PKT = UTC + 5h --
    # pick the UTC instant whose PKT wall-clock is Thursday 10:00 (i.e. UTC 05:00).
    thu_utc = datetime(2026, 10, 1, 5, 0, 0)  # PKT: Thu 2026-10-01 10:00
    raw_due = thu_utc + timedelta(hours=48)  # PKT: Sat 2026-10-03 10:00 -- the weekend case
    check(
        "(context) the raw +48h WOULD land on a Saturday in PKT, proving a push is actually needed here",
        (raw_due + timedelta(hours=5)).weekday() == 5,
        str((raw_due + timedelta(hours=5)).weekday()),
    )
    pushed = crud.next_attempt_due([thu_utc.isoformat()])
    pushed_dt = datetime.fromisoformat(pushed)
    pushed_pkt_weekday = (pushed_dt + timedelta(hours=5)).weekday()
    check("pushed date is no longer a weekend day in PKT", pushed_pkt_weekday < 5, str(pushed_pkt_weekday))
    check(
        "pushed to the following Monday, same wall-clock time (not shifted)",
        pushed_dt == raw_due + timedelta(days=2) and pushed_dt.time() == raw_due.time(),
        str(pushed_dt),
    )

    print("\nLeadOut.from_model: 'Z' suffix, due date exposed")
    lead3 = crud_leads.add_lead_dict(db, {"company_name": "Z Suffix Check"})
    crud.record_attempt(db, lead3, "proposal")
    out = LeadOut.from_model(lead3)
    check("proposal_attempts has exactly 1 entry, 'Z'-suffixed", len(out.proposal_attempts) == 1 and out.proposal_attempts[0].endswith("Z"))
    check("proposal_next_attempt_due is set and 'Z'-suffixed", out.proposal_next_attempt_due.endswith("Z"), out.proposal_next_attempt_due)
    check("callback_attempts empty on this lead", out.callback_attempts == [])
    check("callback_next_attempt_due empty (0 attempts)", out.callback_next_attempt_due == "")

    print("\nFAILED: %d" % FAILED)
    return 1 if FAILED else 0


if __name__ == "__main__":
    sys.exit(main())