297 lines
13 KiB
Python
297 lines
13 KiB
Python
"""Surface-agnostic core for the ``/subscription`` TUI screen.
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Companion to :mod:`agent.billing_view` — same fail-open philosophy (``logged_in=False``
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when not logged in / portal unreachable; never crash) and decimal money end-to-end.
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The TUI drives plan changes in-terminal (preview, then schedule a downgrade/cancel/resume
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or apply an upgrade); the portal deep-link (``portal_url`` + ``org_id``) is the fallback
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for an upgrade that needs 3DS / was declined. A 404 from NAS takes the fail-open path.
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"""
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from __future__ import annotations
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import logging
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import os
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from dataclasses import dataclass
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from decimal import Decimal
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from typing import Any, Optional
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from agent.billing_view import OrgRoleCapability, fetch_portal_state, format_money, parse_money, parse_org_fields
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logger = logging.getLogger(__name__)
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@dataclass(frozen=True)
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class CurrentSubscription:
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"""Active subscription (``None``, not this object, = no plan). NAS guarantees ``tier_id`` /
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``tier_name`` / ``monthly_credits`` / ``cycle_ends_at`` are set; the rest are optional."""
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tier_id: Optional[str] = None
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tier_name: Optional[str] = None
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monthly_credits: Optional[Decimal] = None
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credits_remaining: Optional[Decimal] = None
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cycle_ends_at: Optional[str] = None # ISO
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pending_downgrade_tier_name: Optional[str] = None
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pending_downgrade_at: Optional[str] = None # ISO
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cancel_at_period_end: bool = False
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cancellation_effective_at: Optional[str] = None # ISO
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@dataclass(frozen=True)
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class SubscriptionTier:
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"""Tier-picker row (NAS ``SubscriptionTierOption``). ``is_current`` = active plan (shown, not
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selectable); ``is_enabled=False`` = grandfathered, no longer selectable; ``tier_order`` sorts
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the picker and drives the upgrade-vs-downgrade hint."""
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tier_id: str
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name: str
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tier_order: int = 0
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dollars_per_month: Optional[Decimal] = None
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monthly_credits: Optional[Decimal] = None
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is_current: bool = False
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is_enabled: bool = True
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@dataclass(frozen=True)
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class SubscriptionChangePreview:
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"""Parsed ``POST /api/billing/subscription/preview``. ``effect``: ``charge_now`` (upgrade; prorated
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``amount_due_now_cents``) · ``scheduled`` (downgrade / same-price change at ``effective_at``) ·
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``no_op`` (already on target) · ``blocked`` (commit refused; ``reason`` says why)."""
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effect: str
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reason: Optional[str] = None
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current_tier_id: Optional[str] = None
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current_tier_name: Optional[str] = None
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target_tier_id: Optional[str] = None
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target_tier_name: Optional[str] = None
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monthly_credits_delta: Optional[Decimal] = None
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amount_due_now_cents: Optional[int] = None
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effective_at: Optional[str] = None # ISO
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@dataclass(frozen=True)
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class SubscriptionState(OrgRoleCapability):
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"""Parsed ``GET /api/billing/subscription``. Fail-open: ``logged_in=False``
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(empty fields) when not logged in or the portal is unreachable."""
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logged_in: bool
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org_name: Optional[str] = None
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org_id: Optional[str] = None
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role: Optional[str] = None # "OWNER" | "ADMIN" | "FINANCE_ADMIN" | "SECURITY_ADMIN" | "MEMBER"
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can_change_plan_raw: Optional[bool] = None
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context: str = "personal" # "personal" | "team"
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current: Optional[CurrentSubscription] = None
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tiers: tuple[SubscriptionTier, ...] = () # selectable catalog (picker)
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portal_url: Optional[str] = None
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error: Optional[str] = None # set when the fetch failed (vs cleanly not-logged-in)
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# ── Payload parsing ──────────────────────────────────────────────────────────
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def _tier_id(raw: Any) -> Optional[str]:
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"""Real tier id of a NAS dict, else None ("no plan" is ``current: null``; junk is skipped)."""
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return (raw.get("tierId") or raw.get("id") or None) if isinstance(raw, dict) else None
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def _parse_current(raw: Any) -> Optional[CurrentSubscription]:
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tier_id = _tier_id(raw)
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if not tier_id:
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return None
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return CurrentSubscription(
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tier_id=tier_id,
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tier_name=raw.get("tierName") or raw.get("name"),
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monthly_credits=parse_money(raw.get("monthlyCredits")),
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credits_remaining=parse_money(raw.get("creditsRemaining")),
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cycle_ends_at=raw.get("cycleEndsAt"),
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pending_downgrade_tier_name=raw.get("pendingDowngradeTierName"),
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pending_downgrade_at=raw.get("pendingDowngradeAt"),
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cancel_at_period_end=bool(raw.get("cancelAtPeriodEnd")),
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cancellation_effective_at=raw.get("cancellationEffectiveAt") or None,
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)
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def _coalesce(*vals: Any) -> Any:
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"""First non-``None`` value (NAS sends ``0`` for the free tier, which ``x or default`` would drop)."""
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return next((v for v in vals if v is not None), None)
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def _parse_tier(raw: Any) -> Optional[SubscriptionTier]:
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tier_id = _tier_id(raw)
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if not tier_id:
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return None
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return SubscriptionTier(
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tier_id=tier_id,
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name=raw.get("name") or "",
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tier_order=int(_coalesce(raw.get("tierOrder"), 0)),
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dollars_per_month=parse_money(raw.get("dollarsPerMonthDisplay")),
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monthly_credits=parse_money(raw.get("monthlyCredits")),
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is_current=bool(raw.get("isCurrent")),
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is_enabled=bool(_coalesce(raw.get("isEnabled"), True)),
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)
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def subscription_change_preview_from_payload(payload: dict[str, Any]) -> SubscriptionChangePreview:
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"""Map a raw ``/subscription/preview`` JSON dict into :class:`SubscriptionChangePreview`."""
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effect = payload.get("effect")
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cents = payload.get("amountDueNowCents")
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return SubscriptionChangePreview(
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# Unrecognized/missing effect → ``blocked``: fail safe, never charge on a malformed quote.
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effect=effect if isinstance(effect, str) else "blocked",
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reason=payload.get("reason") or None,
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current_tier_id=payload.get("currentTierId"),
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current_tier_name=payload.get("currentTierName"),
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target_tier_id=payload.get("targetTierId"),
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target_tier_name=payload.get("targetTierName"),
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monthly_credits_delta=parse_money(payload.get("monthlyCreditsDelta")),
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amount_due_now_cents=int(cents) if isinstance(cents, (int, float)) else None,
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effective_at=payload.get("effectiveAt") or None,
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)
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def subscription_state_from_payload(payload: dict[str, Any], *, portal_url: Optional[str] = None) -> SubscriptionState:
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"""Map a raw ``/api/billing/subscription`` JSON dict into :class:`SubscriptionState`."""
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org, can_change_plan_raw = parse_org_fields(payload)
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raw_context, raw_tiers = payload.get("context"), payload.get("tiers")
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return SubscriptionState(
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logged_in=True,
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org_name=org.get("name"),
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org_id=org.get("id") or None,
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role=org.get("role"),
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can_change_plan_raw=can_change_plan_raw,
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context=raw_context if raw_context in ("personal", "team") else "personal",
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current=_parse_current(payload.get("current")),
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tiers=tuple(filter(None, map(_parse_tier, raw_tiers))) if isinstance(raw_tiers, list) else (),
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portal_url=portal_url,
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)
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# ── Fail-open builders (the surface front doors) ─────────────────────────────
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def build_subscription_state(*, timeout: float = 15.0) -> SubscriptionState:
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"""Fetch + parse ``GET /api/billing/subscription``; fail-open like ``fetch_portal_state``.
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``HERMES_DEV_SUBSCRIPTION_FIXTURE`` short-circuits to a fixture so every state is testable offline."""
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fixture = dev_fixture_subscription_state()
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if fixture is not None:
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return fixture
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return fetch_portal_state(
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"get_subscription_state", "subscription",
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failed=lambda **kw: SubscriptionState(logged_in=False, **kw),
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parse=lambda payload, portal_url: subscription_state_from_payload(payload, portal_url=portal_url),
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portal_fallback=lambda base: base, timeout=timeout, log=logger,
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)
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def subscription_manage_url(state: SubscriptionState, tier_id: Optional[str] = None) -> Optional[str]:
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"""Build ``{portal_origin}/manage-subscription?org_id=<id>[&plan=<tier_id>]`` (None if unresolvable).
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Mirrors the TUI's ``buildManageUrl``: the target is NAS's OWN ``/manage-subscription`` page
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(NOT the Stripe Billing Portal). ``org_id`` pins the account in multi-org situations; ``tier_id``
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(the stable ``tiers[]`` id, never a name/slug) preselects the plan — the portal ignores an
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unknown tier, so it's appended unconditionally.
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"""
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from urllib.parse import parse_qsl, urlencode, urlsplit, urlunsplit
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try:
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parts = urlsplit(state.portal_url or "")
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except Exception:
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return None
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if parts.scheme not in ("http", "https") or not parts.netloc:
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return None
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# Preserve unrelated portal query params; org_id / plan are contract-owned
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# (org_id before plan — insertion order is the emitted query order).
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params = dict(parse_qsl(parts.query, keep_blank_values=True))
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params.pop("org_id", None)
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params.pop("plan", None)
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if state.org_id:
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params["org_id"] = state.org_id
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if tier_id:
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params["plan"] = tier_id
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return urlunsplit((parts.scheme, parts.netloc, "/manage-subscription", urlencode(params), ""))
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# ── Shared plan-catalog helpers (CLI Free catalog + paid picker) ─────────────
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def selectable_tiers(state: SubscriptionState) -> list[SubscriptionTier]:
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"""Enabled paid tiers other than the current plan, cheapest first (dropping to free is a cancellation)."""
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return sorted(
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(t for t in (state.tiers or ()) if t.is_enabled and not t.is_current and (t.tier_order or 0) > 0),
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key=lambda t: t.tier_order or 0,
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)
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def format_tier_row(tier: SubscriptionTier) -> str:
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"""``name · $X/mo[ · $Y credits/mo]`` (grouped money, like the TUI); credits suffix only when > 0."""
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row = f"{tier.name} · {format_money(tier.dollars_per_month, grouped=True)}/mo"
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mc = tier.monthly_credits
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if mc is not None and mc > 0:
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row += f" · {format_money(mc, grouped=True)} credits/mo"
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return row
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def is_upgrade(state: SubscriptionState, tier_id: str) -> bool:
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"""True when ``tier_id`` ranks above the current plan by ``tier_order``. Prefers the
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active subscription's tier; falls back to the ``tiers[]`` ``is_current`` marker, else 0."""
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tiers = state.tiers or ()
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orders = {t.tier_id: (t.tier_order or 0) for t in tiers}
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cur_id = state.current.tier_id if state.current else None
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cur_order = orders[cur_id] if cur_id in orders else next((t.tier_order or 0 for t in tiers if t.is_current), 0)
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return orders.get(tier_id, 0) > cur_order
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# ── Dev fixtures (env-var driven, no live portal) ────────────────────────────
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_DEV_FIXTURE_PORTAL = "https://portal.nousresearch.com/billing"
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_DEV_TIER_SPECS = (("free", "Free", 0, "0", "0"), ("plus", "Plus", 1, "20", "1000"),
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("super", "Super", 2, "40", "3000"), ("ultra", "Ultra", 3, "80", "7000"))
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_DEV_FIXTURE_ALIASES = {"logged_out": "logged-out", "loggedout": "logged-out", "mid-tier": "mid",
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"top-tier": "top", "member": "not-admin"}
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def _dev_tiers(current_id: Optional[str]) -> tuple[SubscriptionTier, ...]:
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"""Sample plan catalog for fixtures (marks ``current_id`` as the active tier)."""
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return tuple(
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SubscriptionTier(
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tier_id=tid, name=name, tier_order=order, dollars_per_month=parse_money(dpm),
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monthly_credits=parse_money(mc), is_current=(tid == current_id), is_enabled=True,
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)
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for tid, name, order, dpm, mc in _DEV_TIER_SPECS
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)
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def _dev_plan(tier_id: str, remaining: str, **over: Any) -> dict[str, Any]:
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"""``current`` + ``tiers`` fixture fields for being on ``tier_id`` with ``remaining`` credits left."""
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tid, name, _order, _dpm, mc = next(spec for spec in _DEV_TIER_SPECS if spec[0] == tier_id)
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current = CurrentSubscription(
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tier_id=tid, tier_name=name, monthly_credits=Decimal(mc), credits_remaining=Decimal(remaining),
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cycle_ends_at="2026-07-01", **over,
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)
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return dict(current=current, tiers=_dev_tiers(tid))
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def dev_fixture_subscription_state() -> Optional[SubscriptionState]:
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"""``HERMES_DEV_SUBSCRIPTION_FIXTURE`` (``free | mid | top | not-admin | downgrade | cancel | team |
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logged-out``) -> fixture state; None when unset; unknown name → logged-out with ``error`` set."""
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name = (os.getenv("HERMES_DEV_SUBSCRIPTION_FIXTURE") or "").strip().lower()
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if not name:
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return None
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name = _DEV_FIXTURE_ALIASES.get(name, name)
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if name == "logged-out":
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return SubscriptionState(logged_in=False)
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common = dict(logged_in=True, org_name="Acme Inc", org_id="org_acme", role="OWNER", portal_url=_DEV_FIXTURE_PORTAL)
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states: dict[str, dict[str, Any]] = {
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"free": dict(current=None, tiers=_dev_tiers(None)),
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"mid": _dev_plan("plus", "420"),
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"top": _dev_plan("ultra", "5000"),
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"not-admin": {**_dev_plan("plus", "420"), "role": "MEMBER"},
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"downgrade": _dev_plan("super", "1500", pending_downgrade_tier_name="Plus", pending_downgrade_at="2026-07-15"),
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"cancel": _dev_plan("plus", "420", cancel_at_period_end=True, cancellation_effective_at="2026-07-01"),
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"team": dict(context="team", current=None, org_name="Acme Engineering", org_id="org_eng"),
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}
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if name not in states:
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return SubscriptionState(logged_in=False, error=f"unknown HERMES_DEV_SUBSCRIPTION_FIXTURE: {name}")
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return SubscriptionState(**{**common, **states[name]})
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