feat(timeline): activity heatmap mode#33
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Add failing tests for plan item 2B: a calendar-style heatmap of session activity. Data layer (timeline.go, not yet present): - buildHeatmap(sessions, now) returns a 7x8 grid (Mon..Sun rows, 8 weeks of columns with the newest week on the right). - Cells aggregate sessions by Timestamp.Truncate(24h); sessions older than 8 weeks are excluded. - heatmapBucket(count) maps to intensity levels 0..3 with edges at 0, 1-2, 3-5, 6+. Model: - new modeTimeline constant. - timelineCursor time.Time field. - 'T' from list mode enters modeTimeline; cursor starts at today. - 'h' / 'l' (and arrow equivalents) move the cursor by one day, capped at today on the right and ~8 weeks back on the left. - 'enter' filters visibleSessions to the cursor's date and returns to modeList. - 'esc' returns to modeList without filtering. Rendering: - renderTimelineView draws weekday labels (Mon/Wed/Fri visible), the cell grid, and a footer that shows the highlighted date. These tests fail to build because none of buildHeatmap, heatmapBucket, modeTimeline, or m.timelineCursor exist yet. The next commit adds timeline.go and the model + render integration. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Implement plan item 2B: a calendar-style heatmap showing session activity over the last 8 weeks, with cursor navigation and enter-to-filter. Data layer (timeline.go): - buildHeatmap(sessions, now) returns a 7x8 grid (Mon..Sun rows, oldest..newest weeks). Cells aggregate session counts by day; sessions outside the 8-week window are ignored. - heatmapBucket(count) maps to four intensity levels: 0 / 1-2 / 3-5 / 6+. Lipgloss styles render dim..bright accordingly. - countOn / cellOf lookups by date. Model: - New modeTimeline constant. - timelineCursor (highlighted day) and dateFilter (selected day filter) fields. - 'T' from list mode enters timeline mode with the cursor on today. - handleTimelineKey: h/left moves cursor one day earlier, l/right one day later (capped at today on the right and the heatmap's earliest day on the left). enter applies the date filter and returns to list. esc/q returns without filtering. - applyFilter composes the existing fuzzy and bookmark filters with the new date filter; esc in list mode clears it along with the others. Rendering (render.go): - renderTimelineView: weekday-labeled grid + intensity legend + highlighted cursor cell. - renderTimelineHeader: total session count in the window. - renderTimelineFooter: highlighted date and session count, plus navigation hints; flashes in the same path as other footers. - Help overlay: new Timeline Mode block; list-mode help mentions T. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Summary
Implements PLAN.md item 2B — a calendar-style heatmap of session activity over the last 8 weeks, with cursor navigation and enter-to-filter.
Data layer (
timeline.go):buildHeatmap(sessions, now)returns a 7×8 grid (Mon..Sun rows, oldest..newest weeks). Cells aggregate session counts by day; sessions outside the 8-week window are ignored.heatmapBucket(count)maps to four intensity levels:0/1-2/3-5/6+. Lipgloss styles render dim → bright.countOn/cellOflookups by date.Model:
modeTimelineconstant.timelineCursoranddateFilterfields.Tfrom list mode enters timeline mode with cursor on today.h/←moves cursor one day earlier,l/→one day later (capped at today on the right, the heatmap's earliest day on the left).enterapplies the date filter and returns to list.esc/qreturns without filtering.applyFiltercomposes the existing fuzzy and bookmark filters with the new date filter;escin list mode clears it along with the others.Rendering (
render.go):renderTimelineView: weekday-labeled grid + intensity legend + highlighted cursor cellrenderTimelineHeader: total session count in the windowrenderTimelineFooter: highlighted date + count + navigation hints (flashes through the same path as other footers)TRed commit:
6e97bb2Green commit:
ffcc4d4Test plan
go test -race ./...passesgo vet ./...cleangofmt -l .clean🤖 Generated with Claude Code