import type { NextConfig } from "next";

const nextConfig: NextConfig = {
	// Desktop target (Electron wrapper, 2026-09-17): standalone output = a
	// self-contained .next/standalone/server.js the Electron shell spawns
	// on 127.0.0.1. Harmless for plain web deploys (extra build output).
	// The manual copies the docs require — public/ and .next/static — are
	// done by scripts/build-server.mjs.
	output: "standalone",
	// SAFETY (empirically verified 2026-09-17): without this, output file
	// tracing sweeps the repo's real data/ — chat records, graph ledgers —
	// INTO the standalone bundle. A shipped desktop app would carry the
	// developer's session data inside it.
	//
	// SECRETS (2026-10-08, caught in the payload audit): the same sweep
	// ships the repo-root auth.json — the DEV BYOK key store — byte-identical
	// into the DMG (the packaged app never reads it: the shell passes
	// LH_AUTH_FILE → userData). Excluded here; build-server.mjs also REFUSES
	// to package any standalone still containing it. .env* belt-and-braces
	// the same class (not observed swept, same seam).
	//
	// ⚠ EXCLUDE PATTERNS ARE LOAD-BEARING IN WAYS THE DOCS DON'T DESCRIBE
	// (empirically established 2026-10-08): adding dir excludes like
	// "dist/**/*" / "./dist/**/*" for repo-root output dirs STRIPPED THE
	// server-external packages (pi-ai / pi-agent-core lost everything
	// under their dist/ — the traced copy collapsed to a bare package.json
	// and the packaged server died on ERR_MODULE_NOT_FOUND; openai/
	// @anthropic-ai — pi-ai's deps — vanished from the trace entirely).
	// Anchored "./"-prefixed forms behave the same. Only the three entries
	// below are verified safe (complete externals trace + clean payload).
	// The 7.4 GB recursive-DMG payload (repo dist/ swept into the bundle,
	// shipping the previous build inside the next) is instead prevented by
	// the `rm -rf dist .next/standalone` clean step in desktop:dist —
	// verified sufficient, since the sweep can only copy what exists at
	// trace time. scripts/build-server.mjs guards the rest.
	outputFileTracingExcludes: {
		"*": [
			"data/**/*",
			"auth.json",
			".env*",
		],
	},
	// Empirically verified gaps (2026-09-17 standalone smoke): the tracer
	// misses JSON loaded via `import ... with { type: "json" }` attributes —
	// pi-ai's provider catalog (39 JSON files) vanished from the trace and
	// the server 500s on module load. Include the whole data dirs of the
	// runtime-loaded engine packages.
	// pdfjs-dist (sources v0 live smoke, 2026-09-19): its legacy build loads
	// the node fake worker (pdf.worker.mjs) and our standard_fonts dir via
	// runtime-resolved paths — invisible to the tracer. Bundling (without
	// serverExternalPackages below) additionally breaks the worker's
	// import.meta.url resolution inside .next/dev chunks — the live smoke
	// caught it; unit tests run unbundled and never see it.
	outputFileTracingIncludes: {
		"*": [
			"node_modules/pdfjs-dist/legacy/**/*",
			"node_modules/pdfjs-dist/standard_fonts/**/*",
			// Wave E (2026-10-10): pdf_render paints via @napi-rs/canvas — its
			// platform binary (@napi-rs/canvas-<platform>-<arch>) is a dynamic
			// optional-dep require the tracer cannot see. Builds run per-OS and
			// npm installs only the current platform's binary, so this glob
			// resolves to exactly one Skia binary per build.
			"node_modules/@napi-rs/canvas-*/**/*",
			// Wave E stage 2: resvg rasterizes visual-maker SVGs natively; same
			// per-platform-binary story as the canvas above (one per build).
			"node_modules/@resvg/resvg-js-*/**/*",
			"node_modules/@earendil-works/pi-ai/dist/providers/data/**/*",
			"node_modules/@earendil-works/pi-agent-core/dist/**/*.json",
		],
	},
	// Framework-free core lives in src/ (plain TS, imported by routes and CLI alike).
	// The pi engine must stay external: its providers are runtime-loaded Node
	// code (undici streams, catalog data) that breaks when bundled into routes.
	serverExternalPackages: [
		"@earendil-works/pi-ai",
		"@earendil-works/pi-agent-core",
		"pdfjs-dist", // sources v0: bundling breaks its node fake-worker path
		"@napi-rs/canvas", // native binding — bundling breaks the .node require
		"@resvg/resvg-js", // native binding — same
	],
};

export default nextConfig;