Introduce background data refresh so the dashboard stays current without
restarting. This touches four layers:
Config (config.go):
- New TUIConfig struct with AutoRefresh (bool) and RefreshIntervalSec
(int) fields, defaulting to enabled at 30-second intervals.
- Minimum interval floor of 10 seconds enforced at load time.
App core (app.go):
- RefreshDataMsg type for background refresh completion signaling.
- Auto-refresh state: interval timer, refreshing flag, lastRefresh
timestamp. Checked on every tick; fires refreshDataCmd when elapsed.
- refreshDataCmd: background goroutine that loads session data via cache
(with uncached fallback) and posts RefreshDataMsg on completion.
- Manual refresh keybind: 'r' triggers immediate refresh.
- Auto-refresh toggle keybind: 'R' toggles auto-refresh and persists
the preference to config.toml.
- Help text updated with r/R keybind documentation.
Status bar (statusbar.go):
- Shows spinning refresh indicator during active refresh.
- Shows auto-refresh icon when auto-refresh is enabled.
Settings tab (tab_settings.go):
- Two new editable fields: Auto Refresh (bool) and Refresh Interval
(seconds with 10s minimum).
- Settings display reads live App state to stay consistent with the
R toggle keybind (avoids stale config-file reads).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Introduce a client for fetching subscription data from the claude.ai web
API, enabling rate-limit monitoring and overage tracking in the dashboard.
New package internal/claudeai:
- Client authenticates via session cookie (sk-ant-sid... prefix validated)
- FetchAll() retrieves orgs, usage windows, and overage in one call,
returning partial data when individual requests fail
- FetchOrganizations/FetchUsage/FetchOverageLimit for granular access
- Defensive utilization parsing handles polymorphic API responses: int
(75), float (0.75 or 75.0), and string ("75%" or "0.75"), normalizing
all to 0.0-1.0 range
- 10s request timeout, 1MB body limit, proper status code handling
(401/403 -> ErrUnauthorized, 429 -> ErrRateLimited)
Types (claudeai/types.go):
- Organization, UsageResponse, UsageWindow (raw), OverageLimit
- SubscriptionData (TUI-ready aggregate), ParsedUsage, ParsedWindow
Config changes (config/config.go):
- Add ClaudeAIConfig struct with session_key and org_id fields
- Add GetSessionKey() with CLAUDE_SESSION_KEY env var fallback
- Fix directory permissions 0o755 -> 0o750 (gosec G301)
- Fix Save() to propagate encoder errors before closing file
The daily aggregation now iterates from the since date through the
until date and inserts a zero-valued DailyStats entry for any day
not already present in the day map. This ensures sparklines and bar
charts render a continuous time axis with explicit zeros for idle
days, rather than connecting adjacent data points across gaps.
Also switch config file creation to os.OpenFile with explicit 0600
permissions and O_WRONLY|O_CREATE|O_TRUNC flags, matching the intent
of the original os.Create call while making the restricted permission
bits explicit for security.
Implement the configuration layer that supports the entire cost
estimation pipeline:
- config/config.go: TOML-based config at ~/.config/cburn/config.toml
(XDG-compliant) with sections for general preferences, Admin API
credentials, budget tracking, appearance, and per-model pricing
overrides. Supports Load/Save with sensible defaults (30-day
window, subagents included, Flexoki Dark theme). Admin API key
resolution checks ANTHROPIC_ADMIN_KEY env var first, falling back
to the config file.
- config/pricing.go: Hardcoded pricing table for 8 Claude model
variants (Opus 4/4.1/4.5/4.6, Sonnet 4/4.5/4.6, Haiku 3.5/4.5)
with per-million-token rates across 5 billing dimensions: input,
output, cache_write_5m, cache_write_1h, cache_read, plus long-
context overrides (>200K tokens). NormalizeModelName strips date
suffixes (e.g., "claude-opus-4-5-20251101" -> "claude-opus-4-5").
CalculateCost and CalculateCacheSavings compute per-call USD costs
by multiplying token counts against the pricing table.
- config/plan.go: DetectPlan reads ~/.claude/.claude.json to
determine the billing plan type. Maps "stripe_subscription" to
the Max plan ($200/mo ceiling), everything else to Pro ($100/mo).
Used by the budget tab for plan-relative spend visualization.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
