/**
 * Generic build adapter.
 *
 * Handles any JS framework by:
 * 1. Installing dependencies
 * 2. Running the project's build script
 * 3. Copying the build output to the output directory
 *
 * This is the fallback for frameworks without a specific adapter,
 * and is also the base logic that specific adapters build on.
 */
import { cpSync, existsSync, mkdirSync, readdirSync, readFileSync, writeFileSync } from 'node:fs';
import { basename, join, relative, resolve } from 'node:path';
import { run } from "../../../node-compat/proc.js";
import { getRunCommand, isAgentuityCliInvocation } from "../detect/util.js";
/**
 * Run a shell command and return exit code.
 */
async function runCommand(cmd, cwd, env) {
    const result = await run({ cmd, cwd, env });
    return {
        exitCode: result.exitCode ?? 1,
        stdout: result.stdout,
        stderr: result.stderr,
    };
}
/**
 * Install dependencies using the detected package manager.
 */
export async function installDependencies(projectDir, packageManager, logger) {
    // Strict (lockfile-honoring) install first. If the lockfile is out
    // of sync — a common case after the user adds a dependency without
    // regenerating the lockfile, or after the lockfile picks up
    // platform-specific optional natives from a different machine —
    // fall back to a regular install. Better to deploy than to fail
    // builds on lockfile drift.
    let strict;
    let fallback;
    switch (packageManager) {
        case 'bun':
            // `bun install` already tolerates lockfile drift.
            strict = ['bun', 'install'];
            fallback = ['bun', 'install'];
            break;
        case 'pnpm':
            strict = ['pnpm', 'install', '--frozen-lockfile'];
            fallback = ['pnpm', 'install'];
            break;
        case 'yarn':
            strict = ['yarn', 'install', '--frozen-lockfile'];
            fallback = ['yarn', 'install'];
            break;
        default:
            strict = ['npm', 'ci'];
            // `--include=optional` so platform-specific optional natives
            // (lightningcss, @parcel/watcher, sharp, @emnapi/*) get pulled
            // for the current arch even when the lockfile only recorded a
            // different host's variants.
            fallback = ['npm', 'install', '--include=optional'];
            break;
    }
    logger.debug(`Installing dependencies with: ${strict.join(' ')}`);
    const result = await runCommand(strict, projectDir);
    if (result.exitCode === 0)
        return;
    if (strict.join(' ') === fallback.join(' ')) {
        throw new Error(`Dependency installation failed (exit ${result.exitCode}):\n${result.stderr}`);
    }
    logger.warn?.(`Lockfile-strict install failed; retrying with \`${fallback.join(' ')}\`. ` +
        'Regenerating the lockfile locally avoids this fallback.');
    logger.debug(`Installing dependencies with: ${fallback.join(' ')}`);
    const retry = await runCommand(fallback, projectDir);
    if (retry.exitCode !== 0) {
        throw new Error(`Dependency installation failed (exit ${retry.exitCode}):\n${retry.stderr}`);
    }
}
/**
 * Run the framework's build command.
 */
const ROOT_LIFECYCLE_SCRIPTS = new Set(['preinstall', 'install', 'postinstall', 'prepare']);
function promoteDependency(pkg, name) {
    const dependencies = (pkg.dependencies ?? {});
    const devDependencies = (pkg.devDependencies ?? {});
    const version = dependencies[name] ?? devDependencies[name];
    if (!version)
        return;
    dependencies[name] = version;
    delete devDependencies[name];
    pkg.dependencies = dependencies;
    pkg.devDependencies = devDependencies;
}
function rewriteRuntimePackageJson(packageJsonPath, runtimeDependencies) {
    const pkg = JSON.parse(readFileSync(packageJsonPath, 'utf-8'));
    const scripts = (pkg.scripts ?? {});
    for (const name of ROOT_LIFECYCLE_SCRIPTS) {
        delete scripts[name];
    }
    pkg.scripts = scripts;
    for (const dependency of runtimeDependencies) {
        promoteDependency(pkg, dependency);
    }
    writeFileSync(packageJsonPath, JSON.stringify(pkg, null, '\t') + '\n');
}
/**
 * Per-package-manager lockfile filenames, in canonical order.
 * `copyRuntimeManifests` uses this to ship only the lockfile that
 * matches the active package manager, so stale rogue lockfiles
 * (e.g. a `bun.lock` left over from a default-pm install in a
 * monorepo subpackage) don't end up next to the real one and
 * confuse Hadron's preference order (bun > npm > pnpm > yarn).
 */
const LOCKFILES_BY_PM = {
    npm: ['package-lock.json', 'npm-shrinkwrap.json'],
    pnpm: ['pnpm-lock.yaml'],
    yarn: ['yarn.lock'],
    bun: ['bun.lock', 'bun.lockb'],
};
export function copyRuntimeManifests(projectDir, outputDir, runtimeDependencies = [], packageManager) {
    // Always ship the manifest.
    const pkgSrc = join(projectDir, 'package.json');
    const pkgDst = join(outputDir, 'package.json');
    if (existsSync(pkgSrc) && !existsSync(pkgDst)) {
        cpSync(pkgSrc, pkgDst);
    }
    // Ship only the lockfile that matches the active pm. When the
    // caller didn't pin a pm (older call sites), fall back to the
    // legacy behavior of shipping every lockfile present — callers
    // should pass `packageManager` to avoid this ambiguity.
    const lockfiles = packageManager
        ? (LOCKFILES_BY_PM[packageManager] ?? [])
        : [
            'package-lock.json',
            'npm-shrinkwrap.json',
            'pnpm-lock.yaml',
            'yarn.lock',
            'bun.lock',
            'bun.lockb',
        ];
    for (const name of lockfiles) {
        const src = join(projectDir, name);
        const dst = join(outputDir, name);
        if (existsSync(src) && !existsSync(dst)) {
            cpSync(src, dst);
        }
    }
    const packageJsonPath = join(outputDir, 'package.json');
    if (existsSync(packageJsonPath)) {
        rewriteRuntimePackageJson(packageJsonPath, runtimeDependencies);
    }
}
export async function runBuildCommand(projectDir, buildCommand, packageManager, buildEnv, logger, extraBinDirs = []) {
    // If it's a package.json script name, use the package manager's run command
    // If it contains spaces or special chars, it's likely a direct command
    const isScriptName = /^[a-zA-Z0-9_:-]+$/.test(buildCommand);
    let cmd;
    if (isScriptName && buildCommand !== '__agentuity_internal__') {
        const runCmd = getRunCommand(packageManager);
        cmd = runCmd.split(' ').concat(buildCommand);
    }
    else {
        cmd = ['sh', '-c', buildCommand];
    }
    // Last-resort guard against build-loop recursion. The detector strips
    // `agentuity ...` scripts before they get here, but if some new code
    // path ever lets one through, fail loudly with a useful message instead
    // of silently shelling into ourselves.
    if (isAgentuityCliInvocation(buildCommand)) {
        throw new Error(`Refusing to run build command \`${buildCommand}\` — it would re-invoke the agentuity CLI ` +
            `and cause infinite recursion. Update the project's package.json "build" script ` +
            `to call the framework directly (e.g. "vite build", "next build"), or remove it ` +
            `so the framework default applies.`);
    }
    logger?.debug(`Running build command: ${cmd.join(' ')}`);
    // Mirror what `npm run`/`bun run` do automatically: prepend the
    // project's node_modules/.bin to PATH so locally-installed binaries
    // (vite, tsc, esbuild, etc.) resolve when shelling out to commands
    // like `vite build` or `tsc -b && vite build` via `sh -c`. Without
    // this, framework-defined buildCommands that aren't bare script
    // names fail with `command not found`.
    //
    // `extraBinDirs` is appended after the project-local `.bin`. In
    // monorepo mode, callers pass the workspace root's `node_modules/.bin`
    // so hoisted binaries (typical for npm/yarn workspaces — e.g. `next`,
    // `vite` end up at root rather than in the subpackage) still
    // resolve when the build shells out from inside the subpackage.
    const binDirs = [join(projectDir, 'node_modules', '.bin'), ...extraBinDirs];
    const envWithLocalBin = {
        ...(buildEnv ?? {}),
        PATH: `${binDirs.join(':')}:${buildEnv?.PATH ?? process.env.PATH ?? ''}`,
    };
    const result = await runCommand(cmd, projectDir, envWithLocalBin);
    if (result.exitCode !== 0) {
        throw new Error(`Build failed (exit ${result.exitCode}):\n${result.stderr || result.stdout}`);
    }
    return { stdout: result.stdout, stderr: result.stderr };
}
async function installTransientDevDependencies(projectDir, packageManager, dependencies, logger) {
    if (dependencies.length === 0)
        return;
    const cmd = (() => {
        switch (packageManager) {
            case 'bun':
                return ['bun', 'add', '--dev', '--no-save', ...dependencies];
            case 'pnpm':
                return ['pnpm', 'add', '--save-dev', '--config.save=false', ...dependencies];
            case 'yarn':
                return ['yarn', 'add', '--dev', '--no-lockfile', ...dependencies];
            default:
                return ['npm', 'install', '--save-dev', '--no-save', ...dependencies];
        }
    })();
    logger.debug(`Installing transient build dependencies with: ${cmd.join(' ')}`);
    const result = await runCommand(cmd, projectDir);
    if (result.exitCode !== 0) {
        throw new Error(`Failed to install transient build dependencies (exit ${result.exitCode}):\n${result.stderr || result.stdout}`);
    }
}
async function prepareFrameworkBuild(projectDir, framework, logger) {
    await installTransientDevDependencies(projectDir, framework.packageManager, framework.buildPreinstallDevDependencies ?? [], logger);
    const cleanups = [];
    for (const replacement of framework.buildFileReplacements ?? []) {
        const filePath = join(projectDir, replacement.path);
        if (!existsSync(filePath))
            continue;
        const original = readFileSync(filePath, 'utf-8');
        if (!original.includes(replacement.search))
            continue;
        writeFileSync(filePath, original.replace(replacement.search, replacement.replacement));
        cleanups.push(() => writeFileSync(filePath, original));
    }
    if (cleanups.length === 0)
        return undefined;
    return {
        cleanup: () => {
            for (const cleanup of cleanups.reverse())
                cleanup();
        },
    };
}
/**
 * Recursively copy the monorepo tree from `monorepo.root` into
 * `outputDir`, excluding directories that must never ship (or that
 * would explode upload size: every nested `node_modules`, the VCS dir,
 * agent dotfiles, dev env files).
 *
 * Build artifacts already live inside the tree at their natural
 * paths (e.g. `<root>/apps/web/dist/`); this single pass picks them
 * up along with every workspace package's source. The deploy zip
 * filter (`cmd/cloud/deploy/upload.ts`) re-applies the same
 * exclusions defensively so anything new we drop in here (e.g. a
 * staging `.agentuity/` sibling) doesn't slip through either.
 */
export function copyMonorepoTree(monorepo, outputDir, logger) {
    const absOut = resolve(outputDir);
    // If the staging dir lives inside the monorepo (it does by default
    // at `<root>/.agentuity/`), skipping it during the walk prevents an
    // infinite copy-into-self loop.
    const outRelToRoot = relative(monorepo.root, absOut);
    const skipNames = new Set(['node_modules', '.git', '.ssh', '.vite', '.agentuity', '.DS_Store']);
    function walk(src, dst) {
        mkdirSync(dst, { recursive: true });
        for (const entry of readdirSync(src, { withFileTypes: true })) {
            if (skipNames.has(entry.name))
                continue;
            if (entry.name.startsWith('.env'))
                continue;
            const srcChild = join(src, entry.name);
            const dstChild = join(dst, entry.name);
            const relFromMonorepo = relative(monorepo.root, srcChild);
            if (relFromMonorepo === outRelToRoot)
                continue; // skip the staging dir itself
            if (entry.isDirectory()) {
                walk(srcChild, dstChild);
            }
            else if (entry.isSymbolicLink()) {
                // Resolve symlinks during copy. `node_modules` symlinks have
                // already been skipped above; everything else is either a
                // genuine source link or a regular file pretending to be one.
                cpSync(srcChild, dstChild, { dereference: true, recursive: true });
            }
            else {
                cpSync(srcChild, dstChild);
            }
        }
    }
    logger.debug(`Mirroring monorepo from ${monorepo.root} to ${absOut}`);
    walk(monorepo.root, absOut);
}
/**
 * Finish the build for monorepo mode: pick the right start command,
 * inject the static server when none is set, copy root runtime
 * manifests, and return a `BuildResult`. Mirrors the post-copy steps
 * in `genericAdapter.build` but adapted to the monorepo tree layout
 * (start commands live under `<outputDir>/<subpath>/...`, manifests
 * come from the workspace root).
 */
async function finishMonorepoBuild(options, started, logs) {
    const { framework, outputDir, monorepo } = options;
    if (!monorepo)
        throw new Error('finishMonorepoBuild called without monorepo context');
    let { startCommand, serverEntry } = framework;
    if (!startCommand) {
        // Static SPA in a monorepo — inject the static server inside the
        // subpackage's build output directory so it serves the right
        // `index.html`. `processes[].workingDirectory` later points at
        // the subpackage so the launch command resolves correctly.
        const { injectStaticServer } = await import("./static-server.js");
        const subBuildOut = resolve(outputDir, monorepo.subpath, framework.buildOutput);
        if (existsSync(subBuildOut)) {
            const injected = injectStaticServer(subBuildOut);
            startCommand = injected.startCommand;
            serverEntry = injected.serverEntry;
            logs.push('✓ Injected static file server (no start script found)');
        }
        else {
            throw new Error(`Monorepo subpackage at ${monorepo.subpath} produced no start command and ` +
                `no build output at ${framework.buildOutput}. Add a "start" script or a build step.`);
        }
    }
    // Source root manifests so Hadron's runtime install sees the full
    // workspaces config. The subpackage's own manifest is still inside
    // the copied tree at <outputDir>/<subpath>/package.json.
    copyRuntimeManifests(monorepo.root, outputDir, framework.runtimeDependencies ?? [], framework.packageManager);
    // Static asset enumeration for CDN upload. In monorepo mode the
    // build output lives under `<outputDir>/<subpath>/<framework.buildOutput>`.
    let resolvedStaticDir;
    if (framework.staticDir) {
        const candidate = resolve(outputDir, monorepo.subpath, framework.staticDir);
        if (existsSync(candidate))
            resolvedStaticDir = candidate;
    }
    return {
        outputDir,
        startCommand,
        serverEntry,
        staticDir: resolvedStaticDir,
        staticAssetPublicPath: framework.staticAssetPublicPath,
        port: framework.port,
        duration: Date.now() - started,
        logs,
    };
}
export const genericAdapter = {
    name: 'generic',
    async build(options) {
        const { projectDir, framework, outputDir, logger } = options;
        const started = Date.now();
        const logs = [];
        let preparation;
        // Monorepo mode plumbing.
        //
        // When the project lives inside a workspace, `install` runs at
        // the workspace root so pnpm/npm/yarn/bun resolve `workspace:*`
        // refs natively. The build itself still runs in the subpackage
        // directory — each pm hoists `.bin` such that the local build
        // command (e.g. `next build`, `vite build`) resolves correctly
        // from inside the subpackage, and this matches how the user
        // invokes the build locally.
        const installCwd = options.monorepo?.root ?? projectDir;
        const buildCwd = projectDir;
        try {
            // Step 1: Install dependencies when the project has a package.json.
            // Bare static HTML projects intentionally have no package setup; they
            // are copied as-is and launched by the platform static server command.
            if (existsSync(join(installCwd, 'package.json'))) {
                logger.debug('Installing dependencies...');
                const installStart = Date.now();
                await installDependencies(installCwd, framework.packageManager, logger);
                logs.push(`✓ Dependencies installed in ${Date.now() - installStart}ms`);
            }
            else {
                logs.push('✓ No package.json found; skipped dependency installation');
            }
            preparation = await prepareFrameworkBuild(projectDir, framework, logger);
            // Step 2: Run the build command
            if (framework.buildCommand && framework.buildCommand !== '__agentuity_internal__') {
                logger.debug(`Running build: ${framework.buildCommand}`);
                const buildStart = Date.now();
                await runBuildCommand(buildCwd, framework.buildCommand, framework.packageManager, framework.buildEnv, logger, options.monorepo ? [join(options.monorepo.root, 'node_modules', '.bin')] : []);
                logs.push(`✓ Build completed in ${Date.now() - buildStart}ms`);
            }
        }
        finally {
            preparation?.cleanup();
        }
        // In monorepo mode, the deploy artifact mirrors the monorepo
        // root: every workspace package, the root manifest, and the root
        // lockfile all ship together so Hadron's runtime install can
        // resolve `workspace:*` refs the same way the user does locally.
        // Build artifacts already live inside the subpackage tree (e.g.
        // `apps/web/dist/`), so a single recursive copy captures both
        // the source workspace and the built output in one pass.
        if (options.monorepo) {
            mkdirSync(resolve(outputDir), { recursive: true });
            copyMonorepoTree(options.monorepo, resolve(outputDir), logger);
            logs.push(`✓ Copied monorepo (root: ${relative(buildCwd, options.monorepo.root) || '.'})`);
            return finishMonorepoBuild(options, started, logs);
        }
        // Step 3: Copy build output to output directory.
        //
        // We have two valid layouts:
        //
        // (a) FLATTEN: copy the *contents* of buildOutput to the output
        //     dir. This is what static SPAs need so the injected
        //     `_serve.js` finds `index.html` at the root, and what
        //     SSR-with-no-start-script frameworks expect.
        //
        // (b) PRESERVE: keep the framework's output directory name
        //     (e.g. `.output/`, `dist/`) inside the deployed tree. Use
        //     this when the user's `start` script references that path
        //     (e.g. TanStack Start: `node .output/server/index.mjs`,
        //     Nuxt: same). Without preserve, the path in the start
        //     command wouldn't resolve at runtime.
        //
        // The presence of a user-defined start command (from
        // `framework.startCommand`, sourced from `pkg.scripts.start`
        // in detection) is the signal: a user-defined start script
        // implies user-known paths, so preserve.
        const buildOutputPath = resolve(projectDir, framework.buildOutput);
        const resolvedOutputDir = resolve(outputDir);
        const preserveBuildOutputDir = !!framework.startCommand &&
            framework.buildOutput !== '.' &&
            framework.buildOutput !== resolvedOutputDir;
        // Copy build output to the output directory when they differ.
        // When buildOutput is '.' (project root), the output dir is a subdirectory
        // of the source, so we iterate entries to avoid cpSync's self-copy check.
        const shouldCopy = existsSync(buildOutputPath) && buildOutputPath !== resolvedOutputDir;
        if (shouldCopy) {
            mkdirSync(resolvedOutputDir, { recursive: true });
            if (preserveBuildOutputDir) {
                // Mirror the framework's output directory name inside the
                // deployed tree, so user-supplied paths in the start command
                // resolve unchanged.
                const preservedDst = join(resolvedOutputDir, framework.buildOutput);
                logger.debug(`Copying build output from ${buildOutputPath} to ${preservedDst} (preserved)`);
                mkdirSync(preservedDst, { recursive: true });
                cpSync(buildOutputPath, preservedDst, { recursive: true });
            }
            else {
                logger.debug(`Copying build output from ${buildOutputPath} to ${resolvedOutputDir}`);
                // Skip directories that shouldn't be deployed
                const skipEntries = new Set([
                    'node_modules',
                    '.git',
                    '.env',
                    basename(resolvedOutputDir), // e.g., '.agentuity'
                ]);
                const entries = readdirSync(buildOutputPath);
                for (const entry of entries) {
                    if (skipEntries.has(entry))
                        continue;
                    const srcPath = join(buildOutputPath, entry);
                    const dstPath = join(resolvedOutputDir, entry);
                    cpSync(srcPath, dstPath, { recursive: true });
                }
            }
        }
        else {
            // Ensure output dir exists even when we skip the copy
            mkdirSync(resolvedOutputDir, { recursive: true });
        }
        // Step 4: Determine start command — inject static file server if none exists
        let { startCommand, serverEntry } = framework;
        if (!startCommand) {
            // No start command (static-only build) — inject a minimal file server
            const { injectStaticServer } = await import("./static-server.js");
            const injected = injectStaticServer(outputDir);
            startCommand = injected.startCommand;
            serverEntry = injected.serverEntry;
            logs.push('✓ Injected static file server (no start script found)');
        }
        // Step 5: Copy package manifests for Hadron's runtime dependency install.
        // Do not copy node_modules: Hadron installs production dependencies before launch.
        // (Monorepo mode takes a separate early-return path above and
        // sources manifests from the workspace root in `finishMonorepoBuild`.)
        copyRuntimeManifests(projectDir, outputDir, framework.runtimeDependencies ?? [], framework.packageManager);
        // Step 6: Resolve static asset directory for CDN upload
        // staticDir is relative to the project root (set by framework detection).
        // If it matches buildOutput, the files are already in outputDir from the copy.
        // Otherwise, copy the static assets into the output so deploy can find them.
        let resolvedStaticDir;
        if (framework.staticDir) {
            const staticSrcPath = resolve(projectDir, framework.staticDir);
            const buildOutputPath = resolve(projectDir, framework.buildOutput);
            // Check if the static dir is inside the build output (already copied)
            if (staticSrcPath.startsWith(buildOutputPath + '/') || staticSrcPath === buildOutputPath) {
                // Static assets are within the copied build output. The destination
                // path depends on whether we preserved the build output dir name.
                const copyRoot = preserveBuildOutputDir
                    ? join(resolvedOutputDir, framework.buildOutput)
                    : resolvedOutputDir;
                const relativeToOutput = relative(buildOutputPath, staticSrcPath);
                resolvedStaticDir = relativeToOutput ? join(copyRoot, relativeToOutput) : copyRoot;
            }
            else if (existsSync(staticSrcPath)) {
                // Static assets are outside the build output — copy them into the output
                const staticDstPath = join(resolvedOutputDir, framework.staticDir);
                logger.debug(`Copying static assets from ${staticSrcPath} to ${staticDstPath}`);
                mkdirSync(staticDstPath, { recursive: true });
                cpSync(staticSrcPath, staticDstPath, { recursive: true });
                resolvedStaticDir = staticDstPath;
                logs.push(`✓ Copied static assets from ${framework.staticDir}`);
            }
        }
        return {
            outputDir,
            startCommand,
            serverEntry,
            staticDir: resolvedStaticDir && existsSync(resolvedStaticDir) ? resolvedStaticDir : undefined,
            staticAssetPublicPath: framework.staticAssetPublicPath,
            port: framework.port,
            duration: Date.now() - started,
            logs,
        };
    },
};
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