Files
gitmost/apps/client/src/features/ai-chat/utils/context-badge.ts
claude code agent 227 ba5cd02439 Address PR #197 review: test coverage + dedup + CI log capture
Code-review follow-ups (Approve-with-comments) for batch #197
(context badge #189 / e2e in CI #187 / inline MCP test #170):

- server: extract the duplicated chatContextWindow ::text->positive-int
  coercion (resolve() + getMasked()) into an exported parsePositiveInt
  helper and unit-test its branches (200000/1.9/0/-5/""/abc/undefined),
  closing the untested read-path gap.
- client: merge the two backward scans over messageRows into one pure,
  exported selectContextBadge helper (numerator and denominator still
  taken from the most recent row carrying EACH value) and unit-test the
  different-rows and fresh-zero-doesn't-shadow cases.
- client: extract the MCP "Test" button tristate presentation into a pure
  mcpTestButtonView helper (collapses the two parallel if/else chains) and
  unit-test idle/ok-with-tools/ok-no-tools/failed label+tooltip branches.
- ci: redirect the backgrounded prod server's stdout/stderr to a log file
  in e2e-mcp and cat it on failure, so a start-up crash is diagnosable
  instead of surfacing only as the generic health timeout.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-26 17:24:29 +03:00

50 lines
2.0 KiB
TypeScript

import type { IAiChatMessageRow } from "@/features/ai-chat/types/ai-chat.types.ts";
/**
* Derive the header context badge figures from the persisted message rows.
*
* - `contextTokens` (numerator): how much the conversation now occupies in the
* model's context window. Read from the most recent row carrying a context
* figure — `contextTokens` (final-step input+output) on rows recorded after
* this shipped, else that turn's legacy `usage` total for older rows.
* - `maxContextTokens` (denominator): the model's configured max window, stamped
* alongside `contextTokens` on a completed turn.
*
* Each value is taken from the most recent row carrying THAT value
* independently — they may land on different rows (e.g. a fresh error row can
* carry `contextTokens` but not `maxContextTokens`), so the scan continues for
* whichever is still unset. `0` means "no row has it" (older rows, or no
* admin-configured limit); the badge then omits the value.
*/
export function selectContextBadge(
messageRows: readonly IAiChatMessageRow[] | undefined | null,
): { contextTokens: number; maxContextTokens: number } {
let contextTokens = 0;
let maxContextTokens = 0;
if (!messageRows) return { contextTokens, maxContextTokens };
for (let i = messageRows.length - 1; i >= 0; i--) {
const meta = messageRows[i].metadata;
if (!meta) continue;
if (contextTokens === 0) {
if (typeof meta.contextTokens === "number" && meta.contextTokens > 0) {
contextTokens = meta.contextTokens;
} else if (meta.usage) {
const usage = meta.usage;
const fallback =
usage.totalTokens ??
(usage.inputTokens ?? 0) + (usage.outputTokens ?? 0);
if (fallback > 0) contextTokens = fallback;
}
}
if (
maxContextTokens === 0 &&
typeof meta.maxContextTokens === "number" &&
meta.maxContextTokens > 0
) {
maxContextTokens = meta.maxContextTokens;
}
if (contextTokens !== 0 && maxContextTokens !== 0) break;
}
return { contextTokens, maxContextTokens };
}