`ListState` and `UsageState` were the same three cases -- Loading, Loaded,
Error -- differing only in what Loaded carried, which is the shape rule 17
asks to parameterize rather than copy. They are now one `LoadState<T>`,
covariant so a single `LoadState.Loading` serves both.
Worth keeping as a type rather than a value beside a nullable error: it is
what stops "we couldn't find out" from sharing a representation with
"there is nothing", so a failed fetch cannot render as an empty list.
`LoadState.failed(e)` also collects the `e.message ?: "Unknown error"` both
screens were spelling out, so there is one answer to what an ApiException
looks like on screen instead of one per caller.
No behaviour change. Verified on the emulator against a real ai-server, not
just compiled: the list empty, the list with two sessions, usage with three
real windows, and both screens' error state with the server stopped.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017xn8nHw1tw1R6PtiY1eEtw
GET /usage serves the numbers behind Claude Code's /usage, read with the
CLI's own stored OAuth credentials (nothing to configure). The endpoint
is undocumented, so parsing is defensive -- the generic limits[] array
becomes labeled window bars, unknown kinds surface under their raw name,
and any failure degrades to an 'unavailable' snapshot with the reason.
One UsageProvider per paid service behind a caching monitor that
enforces the >=180s minimum poll regardless of phone refreshes; no
background polling at all. ureq (rustls) does the outbound call, with
the process-level CryptoProvider now chosen explicitly in main -- ureq
brings ring while axum-server brings aws-lc-rs, and with both in the
graph rustls refuses to guess.
App: a Usage screen off the session list -- per-window bars colored by
utilization with relative reset times. Verified live: 74%/26%/16%
windows rendered against the real endpoint.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017xn8nHw1tw1R6PtiY1eEtw
irisandClaude Opus 5