import { useEffect, useMemo, useRef, useState } from "react"; import { useSQLQuery } from "@motherduck/react-sql-query"; import { AlertCircle, Pause, Play, RotateCcw, Search, Users, GitBranch } from "lucide-react"; export const REQUIRED_DATABASES = [ { type: 'share', path: 'md:_share/duckdbgit_md/e593a339-28b2-45a6-897a-e0b516d7fe23', alias: 'duckdbgit_md' } ]; const N = (v) => (v != null ? Number(v) : 0); const fmt = new Intl.NumberFormat("en-US"); const MONTH_LABEL = new Intl.DateTimeFormat("en-US", { month: "short", year: "numeric" }); const FAMILY_META = { src: { color: "#2eafff", label: "Core engine", accent: "#cfeeff" }, test: { color: "#ff6900", label: "Validation", accent: "#ffd6bd" }, tools: { color: "#7d66ff", label: "Tooling", accent: "#d9d1ff" }, extension: { color: "#00c770", label: "Extensions", accent: "#c0f2dc" }, ".github": { color: "#7d66ff", label: "Automation", accent: "#ddd7ff" }, data: { color: "#fff100", label: "Data", accent: "#fff9b8" }, benchmark: { color: "#ff6900", label: "Benchmark", accent: "#ffd8bf" }, third_party: { color: "#111827", label: "Third party", accent: "#d1d5db" }, default: { color: "#111827", label: "Repository", accent: "#d1d5db" } }; const FAMILY_ORDER = ["src", "test", "extension", "tools", ".github", "data", "benchmark", "third_party", "default"]; const edgeKey = (a, b) => `${Math.min(a, b)}__${Math.max(a, b)}`; const clamp = (v, min, max) => Math.max(min, Math.min(max, v)); function familyMeta(module) { const family = String(module || "").startsWith(".github/") ? ".github" : String(module || "").split("/")[0]; return { family, ...(FAMILY_META[family] || FAMILY_META.default) }; } function parseMonth(month) { const [year, mm] = String(month).split("-").map(Number); return new Date(year, mm - 1, 1); } function LoadingBlock({ height }) { return

; } function GraphLoadingOverlay() { return (

Building graph

loading repository topology

); } function SectionTitle({ eyebrow, title, detail }) { return (

{eyebrow}

{title}

{detail ?

{detail}

: null}

); } function ControlButton({ active, onClick, children }) { return ( ); } function Metric({ value, label, color }) { return (

{value}

{label}

); } export default function DuckDBCodeProjector() { const [frameIndex, setFrameIndex] = useState(0); const [isPlaying, setIsPlaying] = useState(false); const [transitionProgress, setTransitionProgress] = useState(0); const [showPlaybackControls, setShowPlaybackControls] = useState(false); const [selectedModuleIdx, setSelectedModuleIdx] = useState(2); const [hoveredNodeIdx, setHoveredNodeIdx] = useState(0); const [hoveredEdgeKey, setHoveredEdgeKey] = useState(""); const [hoverScreen, setHoverScreen] = useState({ x: 0, y: 0 }); const [graphSize, setGraphSize] = useState({ width: 900, height: 720 }); const graphWrapRef = useRef(null); const canvasRef = useRef(null); const layoutRef = useRef({}); const hasAutoPlayedRef = useRef(false); const modulesQuery = useSQLQuery(` WITH module_base AS ( SELECT CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END AS module, COUNT(*) AS touches, COUNT(DISTINCT fr.commit_id) AS commits, COUNT(DISTINCT p.path) AS files FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id WHERE split_part(p.path, '/', 1) <> '' GROUP BY 1 ), ranked AS ( SELECT row_number() OVER (ORDER BY touches DESC, module) AS module_idx, module, CASE WHEN starts_with(module, '.github/') THEN '.github' ELSE split_part(module, '/', 1) END AS family, touches, commits, files FROM module_base ) SELECT module_idx, module, family, touches, commits, files FROM ranked WHERE module_idx <= 18 ORDER BY module_idx `); const nodeTimelineQuery = useSQLQuery(` WITH module_base AS ( SELECT CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END AS module, COUNT(*) AS touches FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id WHERE split_part(p.path, '/', 1) <> '' GROUP BY 1 ), top_modules AS ( SELECT module_idx, module FROM ( SELECT row_number() OVER (ORDER BY touches DESC, module) AS module_idx, module FROM module_base ) ranked WHERE module_idx <= 18 ), commit_modules AS ( SELECT DISTINCT strftime(date_trunc('month', c.committed_at), '%Y-%m') AS month, tm.module_idx, c.id AS commit_id FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id JOIN "duckdbgit_md"."main"."pgit_commits" c ON fr.commit_id = c.id JOIN top_modules tm ON CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END = tm.module ) SELECT month, module_idx, COUNT(*) AS commits FROM commit_modules GROUP BY 1, 2 ORDER BY 1, 2 `); const monthlyLeadersQuery = useSQLQuery(` WITH module_base AS ( SELECT CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END AS module, COUNT(*) AS touches FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id WHERE split_part(p.path, '/', 1) <> '' GROUP BY 1 ), top_modules AS ( SELECT module_idx, module FROM ( SELECT row_number() OVER (ORDER BY touches DESC, module) AS module_idx, module FROM module_base ) ranked WHERE module_idx <= 18 ), module_author_month AS ( SELECT tm.module_idx, strftime(date_trunc('month', c.committed_at), '%Y-%m') AS month, COALESCE(NULLIF(c.author_name, ''), c.author_email) AS author, COUNT(DISTINCT c.id) AS commits, ROW_NUMBER() OVER ( PARTITION BY tm.module_idx, strftime(date_trunc('month', c.committed_at), '%Y-%m') ORDER BY COUNT(DISTINCT c.id) DESC, COALESCE(NULLIF(c.author_name, ''), c.author_email) ) AS rn FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id JOIN "duckdbgit_md"."main"."pgit_commits" c ON fr.commit_id = c.id JOIN top_modules tm ON CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END = tm.module GROUP BY 1, 2, 3 ) SELECT module_idx, month, author, commits FROM module_author_month WHERE rn = 1 ORDER BY month, module_idx `); const topAuthorsQuery = useSQLQuery(` WITH module_base AS ( SELECT CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END AS module, COUNT(*) AS touches FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id WHERE split_part(p.path, '/', 1) <> '' GROUP BY 1 ), top_modules AS ( SELECT module_idx, module FROM ( SELECT row_number() OVER (ORDER BY touches DESC, module) AS module_idx, module FROM module_base ) ranked WHERE module_idx <= 18 ), ranked_authors AS ( SELECT tm.module_idx, COALESCE(NULLIF(c.author_name, ''), c.author_email) AS author, COUNT(DISTINCT c.id) AS commits, ROW_NUMBER() OVER ( PARTITION BY tm.module_idx ORDER BY COUNT(DISTINCT c.id) DESC, COALESCE(NULLIF(c.author_name, ''), c.author_email) ) AS rn FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id JOIN "duckdbgit_md"."main"."pgit_commits" c ON fr.commit_id = c.id JOIN top_modules tm ON CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END = tm.module GROUP BY 1, 2 ) SELECT module_idx, author, commits FROM ranked_authors WHERE rn <= 3 ORDER BY module_idx, rn `); const topPathsQuery = useSQLQuery(` WITH module_base AS ( SELECT CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END AS module, COUNT(*) AS touches FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id WHERE split_part(p.path, '/', 1) <> '' GROUP BY 1 ), top_modules AS ( SELECT module_idx, module FROM ( SELECT row_number() OVER (ORDER BY touches DESC, module) AS module_idx, module FROM module_base ) ranked WHERE module_idx <= 18 ), ranked_paths AS ( SELECT tm.module_idx, p.path, COUNT(*) AS touches, ROW_NUMBER() OVER (PARTITION BY tm.module_idx ORDER BY COUNT(*) DESC, p.path) AS rn FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id JOIN top_modules tm ON CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END = tm.module GROUP BY 1, 2 ) SELECT module_idx, path, touches FROM ranked_paths WHERE rn <= 2 ORDER BY module_idx, rn `); const edgeTimelineQuery = useSQLQuery(` WITH module_base AS ( SELECT CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END AS module, COUNT(*) AS touches FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id WHERE split_part(p.path, '/', 1) <> '' GROUP BY 1 ), top_modules AS ( SELECT module_idx, module FROM ( SELECT row_number() OVER (ORDER BY touches DESC, module) AS module_idx, module FROM module_base ) ranked WHERE module_idx <= 18 ), commit_modules AS ( SELECT DISTINCT c.id AS commit_id, strftime(date_trunc('month', c.committed_at), '%Y-%m') AS month, tm.module_idx FROM "duckdbgit_md"."main"."pgit_file_refs" fr JOIN "duckdbgit_md"."main"."pgit_paths" p ON fr.path_id = p.path_id JOIN "duckdbgit_md"."main"."pgit_commits" c ON fr.commit_id = c.id JOIN top_modules tm ON CASE WHEN split_part(p.path, '/', 1) = '.github' AND split_part(p.path, '/', 2) <> '' THEN '.github/' || split_part(p.path, '/', 2) WHEN split_part(p.path, '/', 2) <> '' THEN split_part(p.path, '/', 1) || '/' || split_part(p.path, '/', 2) ELSE split_part(p.path, '/', 1) END = tm.module ), pair_totals AS ( SELECT a.module_idx AS source_idx, b.module_idx AS target_idx, COUNT(*) AS total_cochanges FROM commit_modules a JOIN commit_modules b ON a.commit_id = b.commit_id AND a.module_idx < b.module_idx GROUP BY 1, 2 ), top_pairs AS ( SELECT source_idx, target_idx FROM pair_totals ORDER BY total_cochanges DESC, source_idx, target_idx LIMIT 15 ) SELECT a.month, tp.source_idx, tp.target_idx, COUNT(*) AS cochange_commits FROM top_pairs tp JOIN commit_modules a ON a.module_idx = tp.source_idx JOIN commit_modules b ON b.module_idx = tp.target_idx AND a.commit_id = b.commit_id AND a.month = b.month GROUP BY 1, 2, 3 ORDER BY 1, 2, 3 `); const summaryQuery = useSQLQuery(` SELECT COUNT(*) AS commits, COUNT(DISTINCT author_email) AS authors, strftime(MIN(committed_at), '%Y-%m-%d') AS first_commit, strftime(MAX(committed_at), '%Y-%m-%d') AS last_commit FROM "duckdbgit_md"."main"."pgit_commits" `); const moduleRows = Array.isArray(modulesQuery.data) ? modulesQuery.data : []; const nodeRows = Array.isArray(nodeTimelineQuery.data) ? nodeTimelineQuery.data : []; const leaderRows = Array.isArray(monthlyLeadersQuery.data) ? monthlyLeadersQuery.data : []; const authorRows = Array.isArray(topAuthorsQuery.data) ? topAuthorsQuery.data : []; const pathRows = Array.isArray(topPathsQuery.data) ? topPathsQuery.data : []; const edgeRows = Array.isArray(edgeTimelineQuery.data) ? edgeTimelineQuery.data : []; const summary = Array.isArray(summaryQuery.data) ? summaryQuery.data[0] : null; const months = useMemo(() => Array.from(new Set(nodeRows.map((row) => row.month))).sort(), [nodeRows]); const currentMonth = months[frameIndex] || ""; const currentMonthDate = currentMonth ? MONTH_LABEL.format(parseMonth(currentMonth)) : ""; useEffect(() => { if (!months.length) return; if (frameIndex >= months.length) setFrameIndex(months.length - 1); }, [months, frameIndex]); useEffect(() => { if (!moduleRows.length) return; const exists = moduleRows.some((row) => N(row.module_idx) === selectedModuleIdx); if (!exists) setSelectedModuleIdx(N(moduleRows[0].module_idx)); }, [moduleRows, selectedModuleIdx]); useEffect(() => { const el = graphWrapRef.current; if (!el) return; const observer = new ResizeObserver((entries) => { const rect = entries[0]?.contentRect; if (!rect) return; setGraphSize({ width: rect.width, height: Math.max(700, rect.height) }); }); observer.observe(el); return () => observer.disconnect(); }, []); useEffect(() => { if (!isPlaying || !months.length) return; const id = setInterval(() => { setTransitionProgress((prev) => { const next = prev + 0.0333333333; if (next < 1) return next; setFrameIndex((current) => { if (current >= months.length - 1) { setIsPlaying(false); return current; } return current + 1; }); return 0; }); }, 16); return () => clearInterval(id); }, [isPlaying, months.length]); useEffect(() => { const ready = moduleRows.length > 0 && nodeRows.length > 0 && edgeRows.length > 0; if (!ready || hasAutoPlayedRef.current) return; hasAutoPlayedRef.current = true; setShowPlaybackControls(true); setIsPlaying(true); }, [moduleRows.length, nodeRows.length, edgeRows.length]); const moduleByIdx = useMemo(() => { const map = {}; moduleRows.forEach((row) => { map[N(row.module_idx)] = row; }); return map; }, [moduleRows]); const monthLeaders = useMemo(() => { const map = {}; leaderRows.forEach((row) => { map[`${row.month}__${N(row.module_idx)}`] = { author: row.author, commits: N(row.commits) }; }); return map; }, [leaderRows]); const topAuthorsByModule = useMemo(() => { const map = {}; authorRows.forEach((row) => { const idx = N(row.module_idx); if (!map[idx]) map[idx] = []; map[idx].push({ author: row.author, commits: N(row.commits) }); }); return map; }, [authorRows]); const topPathsByModule = useMemo(() => { const map = {}; pathRows.forEach((row) => { const idx = N(row.module_idx); if (!map[idx]) map[idx] = []; map[idx].push({ path: row.path, touches: N(row.touches) }); }); return map; }, [pathRows]); const monthTotals = useMemo(() => { const map = {}; nodeRows.forEach((row) => { map[row.month] = (map[row.month] || 0) + N(row.commits); }); return map; }, [nodeRows]); const nodeCurrentByMonth = useMemo(() => { const map = {}; nodeRows.forEach((row) => { map[`${row.month}__${N(row.module_idx)}`] = N(row.commits); }); return map; }, [nodeRows]); const edgeCurrentByMonth = useMemo(() => { const map = {}; edgeRows.forEach((row) => { map[`${row.month}__${edgeKey(N(row.source_idx), N(row.target_idx))}`] = N(row.cochange_commits); }); return map; }, [edgeRows]); const nextMonth = months[Math.min(frameIndex + 1, Math.max(months.length - 1, 0))] || currentMonth; const easedProgress = transitionProgress * transitionProgress * (3 - 2 * transitionProgress); const nodeState = useMemo(() => { const map = {}; moduleRows.forEach((row) => { const idx = N(row.module_idx); map[idx] = { idx, module: row.module, family: row.family, touches: N(row.touches), totalCommits: N(row.commits), files: N(row.files), cumulativeCommits: 0, currentCommits: 0, firstSeen: "", leader: null }; }); nodeRows.forEach((row) => { const idx = N(row.module_idx); if (!map[idx] || !currentMonth) return; const commits = N(row.commits); if (row.month < currentMonth) { map[idx].cumulativeCommits += commits; if (!map[idx].firstSeen) map[idx].firstSeen = row.month; return; } if (row.month === currentMonth) { map[idx].cumulativeCommits += commits; if (!map[idx].firstSeen) map[idx].firstSeen = row.month; map[idx].currentCommits = commits; return; } if (row.month === nextMonth) { return; } }); Object.values(map).forEach((node) => { node.leader = monthLeaders[`${currentMonth}__${node.idx}`] || null; }); return map; }, [moduleRows, nodeRows, currentMonth, nextMonth, monthLeaders, easedProgress]); const edgeState = useMemo(() => { const map = {}; edgeRows.forEach((row) => { if (!currentMonth) return; const key = edgeKey(N(row.source_idx), N(row.target_idx)); if (!map[key]) { map[key] = { key, source: N(row.source_idx), target: N(row.target_idx), cumulative: 0, current: 0 }; } const commits = N(row.cochange_commits); if (row.month < currentMonth) { map[key].cumulative += commits; return; } if (row.month === currentMonth) { map[key].cumulative += commits; map[key].current = commits; return; } if (row.month === nextMonth) { return; } }); return map; }, [edgeRows, currentMonth, nextMonth, easedProgress]); const activeNodes = useMemo(() => Object.values(nodeState).filter((node) => node.cumulativeCommits > 0), [nodeState]); const visibleEdges = useMemo(() => Object.values(edgeState).filter((edge) => edge.cumulative > 0), [edgeState]); const currentVisibleNodes = useMemo(() => Object.values(nodeState).filter((node) => node.currentCommits > 0), [nodeState]); const maxCurrentNode = Math.max(1, ...Object.values(nodeState).map((row) => row.currentCommits)); const maxEdgeCumulative = Math.max(1, ...visibleEdges.map((row) => row.cumulative)); const maxMonthTotal = Math.max(1, ...Object.values(monthTotals).map((v) => N(v))); const selectedNode = nodeState[selectedModuleIdx] || activeNodes[0] || null; const hoveredNode = hoveredNodeIdx ? nodeState[hoveredNodeIdx] : null; const hoveredEdge = hoveredEdgeKey ? edgeState[hoveredEdgeKey] : null; const groupedByFamily = useMemo(() => { const map = {}; moduleRows.forEach((row) => { const family = familyMeta(row.module).family; if (!map[family]) map[family] = []; map[family].push(row); }); Object.values(map).forEach((rows) => { rows.sort((a, b) => N(a.module_idx) - N(b.module_idx)); }); return map; }, [moduleRows]); useEffect(() => { const families = FAMILY_ORDER.filter((family) => groupedByFamily[family]?.length); if (!families.length) return; const leftPad = 120; const rightPad = 120; const topPad = 92; const bottomPad = 84; const usableWidth = Math.max(graphSize.width - leftPad - rightPad, 200); const usableHeight = Math.max(graphSize.height - topPad - bottomPad, 200); const columnGap = families.length > 1 ? usableWidth / (families.length - 1) : 0; const nextLayout = {}; families.forEach((family, familyIndex) => { const rows = groupedByFamily[family] || []; const x = leftPad + familyIndex * columnGap; const rowGap = rows.length > 1 ? Math.min(104, usableHeight / (rows.length - 1)) : 0; const blockHeight = rows.length > 1 ? rowGap * (rows.length - 1) : 0; const startY = topPad + (usableHeight - blockHeight) / 2; rows.forEach((row, rowIndex) => { nextLayout[N(row.module_idx)] = { x, y: startY + rowIndex * rowGap, family }; }); }); layoutRef.current = nextLayout; }, [graphSize, groupedByFamily]); useEffect(() => { const canvas = canvasRef.current; if (!canvas) return; const ratio = window.devicePixelRatio || 1; canvas.width = graphSize.width * ratio; canvas.height = graphSize.height * ratio; canvas.style.width = `${graphSize.width}px`; canvas.style.height = `${graphSize.height}px`; const ctx = canvas.getContext("2d"); if (!ctx) return; ctx.setTransform(1, 0, 0, 1, 0, 0); ctx.scale(ratio, ratio); ctx.clearRect(0, 0, graphSize.width, graphSize.height); ctx.fillStyle = "#ffffff"; ctx.fillRect(0, 0, graphSize.width, graphSize.height); ctx.save(); ctx.globalAlpha = 0.12; for (let y = 24; y < graphSize.height; y += 28) { ctx.beginPath(); ctx.moveTo(0, y); ctx.lineTo(graphSize.width, y); ctx.strokeStyle = "#d1d5db"; ctx.lineWidth = 0.7; ctx.stroke(); } ctx.restore(); const visibleFamilies = FAMILY_ORDER.filter((family) => groupedByFamily[family]?.length); visibleFamilies.forEach((family) => { const rows = groupedByFamily[family]; const first = rows?.[0]; if (!first) return; const pos = layoutRef.current[N(first.module_idx)]; if (!pos) return; const meta = FAMILY_META[family] || FAMILY_META.default; ctx.fillStyle = meta.color; ctx.font = "700 11px ui-sans-serif, system-ui, sans-serif"; ctx.textAlign = "center"; ctx.fillText(meta.label, pos.x, 36); ctx.fillStyle = "#9ca3af"; ctx.font = "10px ui-sans-serif, system-ui, sans-serif"; ctx.fillText(family === ".github" ? ".github/*" : `${family}/*`, pos.x, 50); }); visibleEdges.forEach((edge) => { const source = layoutRef.current[edge.source]; const target = layoutRef.current[edge.target]; const sourceNode = nodeState[edge.source]; const targetNode = nodeState[edge.target]; if (!source || !target || !sourceNode || !targetNode) return; const blendedEdge = edge.current; const gradient = ctx.createLinearGradient(source.x, source.y, target.x, target.y); gradient.addColorStop(0, familyMeta(sourceNode.module).color); gradient.addColorStop(1, familyMeta(targetNode.module).color); ctx.beginPath(); ctx.moveTo(source.x, source.y); ctx.lineTo(target.x, target.y); ctx.strokeStyle = gradient; ctx.globalAlpha = hoveredEdgeKey === edge.key ? 0.95 : 0.08 + (edge.cumulative / maxEdgeCumulative) * 0.22 + (blendedEdge / Math.max(1, edge.cumulative)) * 0.08; ctx.lineWidth = 1 + Math.sqrt(edge.cumulative / maxEdgeCumulative) * 4.2 + (blendedEdge > 0 ? Math.sqrt(blendedEdge / Math.max(1, edge.cumulative)) * 1.2 : 0); ctx.stroke(); }); moduleRows.forEach((row) => { const idx = N(row.module_idx); const state = nodeState[idx]; const pos = layoutRef.current[idx]; if (!state || !pos) return; const meta = familyMeta(state.module); const blendedNode = state.currentCommits; const radius = state.cumulativeCommits > 0 ? 7 + (Math.sqrt(Math.max(blendedNode, 0)) / Math.sqrt(Math.max(1, maxCurrentNode))) * 11 : 6; const halo = 3 + (Math.sqrt(Math.max(blendedNode, 0)) / Math.sqrt(Math.max(1, maxCurrentNode))) * 6; const isSelected = selectedModuleIdx === idx; const isHovered = hoveredNodeIdx === idx; if (state.cumulativeCommits > 0) { ctx.beginPath(); ctx.arc(pos.x, pos.y, radius + halo, 0, Math.PI * 2); ctx.fillStyle = `${meta.accent}66`; ctx.fill(); } ctx.beginPath(); ctx.arc(pos.x, pos.y, radius, 0, Math.PI * 2); ctx.fillStyle = state.cumulativeCommits > 0 ? meta.color : "rgba(156,163,175,0.18)"; ctx.fill(); if (isSelected || isHovered) { ctx.beginPath(); ctx.arc(pos.x, pos.y, radius + 5, 0, Math.PI * 2); ctx.strokeStyle = isSelected ? "#fff100" : meta.accent; ctx.lineWidth = isSelected ? 2.4 : 1.6; ctx.globalAlpha = 1; ctx.stroke(); } ctx.globalAlpha = state.cumulativeCommits > 0 ? 0.96 : 0.42; ctx.fillStyle = "#111827"; ctx.font = `${isSelected ? 700 : 600} 11px ui-sans-serif, system-ui, sans-serif`; ctx.textAlign = "center"; ctx.fillText(state.module, pos.x, pos.y + radius + 18); ctx.font = "10px ui-sans-serif, system-ui, sans-serif"; ctx.fillStyle = "#4b5563"; ctx.fillText(`${fmt.format(state.currentCommits)} this frame`, pos.x, pos.y + radius + 30); }); }, [graphSize, groupedByFamily, visibleEdges, moduleRows, nodeState, hoveredEdgeKey, hoveredNodeIdx, selectedModuleIdx, maxCurrentNode, maxEdgeCumulative, edgeCurrentByMonth, nodeCurrentByMonth, nextMonth, easedProgress]); const hitTest = (x, y) => { let nodeHit = 0; let bestDistance = Infinity; moduleRows.forEach((row) => { const idx = N(row.module_idx); const pos = layoutRef.current[idx]; const state = nodeState[idx]; if (!pos || !state || !state.cumulativeCommits) return; const radius = 7 + (Math.sqrt(Math.max(state.currentCommits, 0)) / Math.sqrt(Math.max(1, maxCurrentNode))) * 11; const d = Math.hypot(x - pos.x, y - pos.y); if (d < radius + 12 && d < bestDistance) { bestDistance = d; nodeHit = idx; } }); if (nodeHit) return { type: "node", id: nodeHit }; let edgeHit = ""; let bestEdgeDistance = 7; visibleEdges.forEach((edge) => { const a = layoutRef.current[edge.source]; const b = layoutRef.current[edge.target]; if (!a || !b) return; const length = Math.hypot(b.x - a.x, b.y - a.y); if (!length) return; const t = clamp(((x - a.x) * (b.x - a.x) + (y - a.y) * (b.y - a.y)) / (length * length), 0, 1); const px = a.x + (b.x - a.x) * t; const py = a.y + (b.y - a.y) * t; const distance = Math.hypot(x - px, y - py); if (distance < bestEdgeDistance) { bestEdgeDistance = distance; edgeHit = edge.key; } }); return edgeHit ? { type: "edge", id: edgeHit } : { type: "none", id: 0 }; }; const handleMouseMove = (event) => { const rect = canvasRef.current?.getBoundingClientRect(); if (!rect) return; const x = event.clientX - rect.left; const y = event.clientY - rect.top; setHoverScreen({ x, y }); const hit = hitTest(x, y); setHoveredNodeIdx(hit.type === "node" ? hit.id : 0); setHoveredEdgeKey(hit.type === "edge" ? hit.id : ""); }; const handleClick = (event) => { const rect = canvasRef.current?.getBoundingClientRect(); if (!rect) return; const x = event.clientX - rect.left; const y = event.clientY - rect.top; const hit = hitTest(x, y); if (hit.type === "node") setSelectedModuleIdx(hit.id); }; const hoverNodeData = hoveredNode; const hoverEdgeData = hoveredEdge; const neighborRows = useMemo(() => { if (!selectedNode) return []; return visibleEdges .filter((edge) => edge.source === selectedNode.idx || edge.target === selectedNode.idx) .map((edge) => { const otherIdx = edge.source === selectedNode.idx ? edge.target : edge.source; const other = nodeState[otherIdx]; return { module: other?.module || String(otherIdx), current: edge.current, cumulative: edge.cumulative, family: familyMeta(other?.module).label }; }) .sort((a, b) => b.cumulative - a.cumulative) .slice(0, 6); }, [selectedNode, visibleEdges, nodeState]); const familyRollup = useMemo(() => { const map = {}; activeNodes.forEach((node) => { const meta = familyMeta(node.module); if (!map[meta.family]) map[meta.family] = { family: meta.family, label: meta.label, color: meta.color, cumulative: 0, current: 0, modules: 0 }; map[meta.family].cumulative += node.cumulativeCommits; map[meta.family].current += node.currentCommits; map[meta.family].modules += 1; }); return Object.values(map).sort((a, b) => b.cumulative - a.cumulative); }, [activeNodes]); const anyError = modulesQuery.isError || nodeTimelineQuery.isError || monthlyLeadersQuery.isError || topAuthorsQuery.isError || topPathsQuery.isError || edgeTimelineQuery.isError || summaryQuery.isError; return (

Temporal Code Projection

DuckDB Code Atlas

Module activity and co-change across the imported history.

Static import snapshot

{summaryQuery.isLoading ? : summary ? (

Repository Window

{summary.first_commit} to {summary.last_commit}

{fmt.format(N(summary.commits))} commits across {fmt.format(N(summary.authors))} authors

) : null}

{anyError ? (

One or more sections failed to load. The app will render available data.

) : null}

{showPlaybackControls ? (

setIsPlaying((v) => !v)}> {isPlaying ? : } {isPlaying ? "Pause" : "Play"} { setIsPlaying(false); setFrameIndex(0); setTransitionProgress(0); }}> Restart

) :

}

{months.length ? ( { setIsPlaying(false); setFrameIndex(Number(e.target.value)); setTransitionProgress(0); }} style={{ width: "100%" }} /> ) : }

{nodeTimelineQuery.isLoading ? : ( <> )}

{nodeTimelineQuery.isLoading ? : (

{months.map((month, idx) => { const total = N(monthTotals[month]); const height = 14 + (total / maxMonthTotal) * 72; const active = idx === frameIndex; return (

)}

{months[0] || ""}

{months[Math.max(months.length - 1, 0)] || ""}

{modulesQuery.isLoading || nodeTimelineQuery.isLoading ? : selectedNode ? ( <>

Lead

{selectedNode.leader ? selectedNode.leader.author : "No active lead"}

{selectedNode.leader ? `${fmt.format(selectedNode.leader.commits)} commits` : "Inactive in this frame."}

Top authors

{topAuthorsQuery.isLoading ? : (

{(topAuthorsByModule[selectedNode.idx] || []).map((row) => (

{row.author}

{fmt.format(row.commits)}

))}

)}

Top files

{topPathsQuery.isLoading ? : (

{(topPathsByModule[selectedNode.idx] || []).map((row) => (

{row.path}

{selectedNode.module}

{fmt.format(row.touches)}

))}

)}

Top neighbors

{neighborRows.length ? neighborRows.map((row) => (

{row.module}

{row.family}

{fmt.format(row.current)} now

{fmt.format(row.cumulative)}

)) :

No active strong edges.

}

) : null}

{modulesQuery.isLoading ? : (

{familyRollup.map((row) => (

{row.label}

{fmt.format(row.modules)} active modules

{fmt.format(row.current)} now

{fmt.format(row.cumulative)}

))}

)}

); }

DuckDB Code Atlas

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