import { readFileSync, writeFileSync, cpSync, mkdirSync, rmSync } from 'fs'
import { join } from 'path'
import { execSync } from 'child_process'
import solidPlugin from '@opentui/solid/bun-plugin'

const rootDir = join(__dirname, '..')
const packageJsonPath = join(rootDir, 'package.json')
const distDir = join(rootDir, 'dist')

const packageJson = JSON.parse(readFileSync(packageJsonPath, 'utf-8')) as {
	version?: string
}
const buildVersion = packageJson.version ?? '0.0.0'

console.log('Cleaning dist...')
rmSync(distDir, { recursive: true, force: true })

console.log('Generating type declarations...')
execSync('tsc -p tsconfig.build.json --emitDeclarationOnly', {
	cwd: rootDir,
	stdio: 'inherit',
})

console.log('Bundling server plugin...')
const serverResult = await Bun.build({
	entrypoints: [join(rootDir, 'src', 'index.ts')],
	outdir: distDir,
	target: 'node',
	format: 'esm',
	naming: 'index.js',
	external: ['@opencode-ai/plugin', '@opencode-ai/sdk', '@opencode-ai/sdk/v2', 'better-sqlite3'],
	define: {
		__FORGECODE_VERSION_VALUE__: JSON.stringify(buildVersion),
	},
})

console.log('Compiling TUI plugin...')
const tuiResult = await Bun.build({
	entrypoints: [join(rootDir, 'src', 'tui.tsx')],
	outdir: distDir,
	target: 'node',
	format: 'esm',
	plugins: [solidPlugin],
	external: ['@opencode-ai/plugin/tui', '@opentui/core', '@opentui/solid', 'solid-js', 'better-sqlite3'],
	define: {
		__FORGECODE_VERSION_VALUE__: JSON.stringify(buildVersion),
	},
})

console.log('Bundling graph worker...')
const workerResult = await Bun.build({
	entrypoints: [join(rootDir, 'src', 'graph', 'worker.ts')],
	outdir: join(distDir, 'graph'),
	target: 'node',
	format: 'esm',
	// web-tree-sitter ships emscripten glue with WASI imports (clock_time_get, etc.).
	// Bundling it through Bun mangles the dynamic require/locateFile machinery and
	// strips the WASI shim, producing:
	//   LinkError: import function wasi_snapshot_preview1:clock_time_get must be callable
	// Keep it external so Node loads the package's runtime as-is.
	external: ['web-tree-sitter', 'tree-sitter-wasms', 'better-sqlite3'],
})

console.log('Bundling CLI...')
const cliOutDir = join(distDir, 'cli')
mkdirSync(cliOutDir, { recursive: true })
const cliResult = await Bun.build({
	entrypoints: [join(rootDir, 'src', 'cli', 'index.ts')],
	outdir: cliOutDir,
	target: 'node',
	format: 'esm',
	naming: 'index.js',
	external: ['@opencode-ai/plugin', '@opencode-ai/sdk', '@opencode-ai/sdk/v2', 'better-sqlite3'],
	define: {
		__FORGECODE_VERSION_VALUE__: JSON.stringify(buildVersion),
	},
})

for (const result of [serverResult, tuiResult, workerResult, cliResult]) {
	if (!result.success) {
		for (const log of result.logs) {
			console.error(log)
		}
		process.exit(1)
	}
}

console.log('Generating TUI type declarations...')
const tuiDtsContent = `import type { TuiPluginModule } from '@opencode-ai/plugin/tui';
declare const plugin: TuiPluginModule & { id: string };
export default plugin;
`
writeFileSync(join(distDir, 'tui.d.ts'), tuiDtsContent, 'utf-8')

console.log('Copying template files...')
const srcTemplateDir = join(rootDir, 'src', 'command', 'template')
const distTemplateDir = join(distDir, 'command', 'template')
mkdirSync(distTemplateDir, { recursive: true })
cpSync(srcTemplateDir, distTemplateDir, { recursive: true })

console.log('Build complete!')