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3 commits

Author SHA1 Message Date
Trevin Chow
c0d24cc191 fix(plan): resolve type errors in plan summary and isActivePlan guard
Two pre-existing type errors surfaced during the rebase against main:

1. JsonPlanSummary.id was hardcoded to four plan ids, but PlanId now
   includes 'none' (PLAN_IDS was extended when 'codeburn plan clear'
   was added). toJsonPlanSummary only runs for active plans at runtime,
   but the static type still had to be widened. Use PlanId directly
   instead of the hand-rolled union.

2. isActivePlan used Boolean(plan) as the nullish guard, which doesn't
   narrow plan's type in TypeScript. Switch to an explicit
   'plan !== undefined' so the subsequent .id and .monthlyUsd accesses
   type-check.

npx tsc --noEmit is now clean; all 285 tests still pass.
2026-04-20 14:55:07 -07:00
Trevin Chow
1af4d73da4 fix(plan): scope TUI plan row to billing period, use currency-aware formatting
Address review feedback on #74:

1. TUI plan row previously used the active tab's filtered projects as
   plan spend, so 'Today' showed today's cost as plan spent. Switch
   renderDashboard and reloadData to getPlanUsageOrNull(), which uses
   the plan's own billing period regardless of tab.

2. Plan row rendered via a local formatUsd that hardcoded USD. Replace
   every call with formatCost so 'codeburn currency EUR' flows through.
   Removes the adjacent '$3,425.52' vs '$32.07' style mismatch.

3. renderPlanBar capped filled width at 100%, so 105% and 1700% looked
   identical. Past 100%, render a full bar plus chevron tail sized by
   order of magnitude (log10): 1.05x -> 1 chevron, 17x -> 2, 170x -> 3.

4. 'running on API overage pricing' is wrong for Claude Pro/Max (rate
   limited, not charged overage). Drop that claim; keep the Nx-over
   multiplier and match the under/near projection line structure.

5. Spell out 'equiv' as 'API-equivalent' in the plan label.

Dead code cleanup: getPlanUsageOrNullForProjects is now unused; remove
it. getPlanUsageFromProjects stays (unit tests still use it).
2026-04-20 14:55:07 -07:00
Trevin Chow
553cf2d706 feat(plan): subscription plan tracking with usage progress bar
Adds `codeburn plan set <id>` to configure a subscription plan (Claude Pro,
Claude Max, Cursor Pro, or custom). When set, the Overview panel renders
an API-equivalent progress bar against subscription price with a
projected month-end cost.

Closes the loudest demand signal on the repo: issue #11 ("Subscription
vs API Use") from two independent voices, plus the routing-decision use
case raised in #12.

- src/config.ts: extends CodeburnConfig with Plan, adds readPlan/savePlan/clearPlan
- src/plans.ts: presets (claude-pro $20, claude-max $200, cursor-pro $20)
- src/plan-usage.ts: getPlanUsage, resetDay-aware period math (1-28),
  median-of-7-day-trailing projection
- src/cli.ts: `codeburn plan [show|set|reset]` subcommand, plan wired
  into JSON outputs for report/today/month/status (only when active)
- src/dashboard.tsx: Plan row in Overview, color-coded (green under 80%,
  orange near, red over), with days-until-reset
- README.md: Plans section with honest framing (API-equivalent vs
  subscription price, not token allowance)
- tests/plan-usage.test.ts, tests/plans.test.ts, tests/cli-plan.test.ts:
  period math, presets, CLI round-trip

Resets respect resetDay across month boundaries. Uses median daily spend
(not mean) so one huge day doesn't distort the month-end projection.

Fixes #11

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-20 14:55:07 -07:00