import path from 'path'
import esbuild from 'esbuild'
import process from 'process'
import builtins from 'builtin-modules'
import inlineWorkerPlugin from "esbuild-plugin-inline-worker"
import { visualizer } from "esbuild-visualizer";
const nodeBuiltins = [...builtins, ...builtins.map((mod) => `node:${mod}`)]

const banner = `/*
THIS IS A GENERATED/BUNDLED FILE BY ESBUILD
if you want to view the source, please visit the github repository of this plugin
*/
`

const prod = process.argv[2] === 'production'

const context = await esbuild.context({
	banner: {
		js: banner,
	},
	entryPoints: ['src/main.ts'],
	bundle: true,
	plugins: [
		inlineWorkerPlugin({
			define: {
				'process': '{}', // 继承主配置
			},
		})
	],
	external: [
		'fs',
		'obsidian',
		'electron',
		'path',
		'moment',
		'child_process',
		'@codemirror/autocomplete',
		'@codemirror/collab',
		'@codemirror/commands',
		'@codemirror/language',
		'@codemirror/lint',
		'@codemirror/search',
		'@codemirror/state',
		'@codemirror/view',
		'@lezer/common',
		'@lezer/highlight',
		'@lezer/lr',
		'@lexical/clipboard/clipboard',
		'pdfjs-dist',
		...nodeBuiltins,
	],
	format: 'cjs',
	define: {
		'import.meta.url': 'import_meta_url',
		// process: '{}',
		'process.env.NODE_ENV': JSON.stringify(prod ? 'production' : 'development'),
	},
	inject: [path.resolve('import-meta-url-shim.js')],
	target: 'es2022',
	logLevel: 'info', // 'debug' for more detailed output
	logOverride: {
		'import-is-undefined': 'silent', // 忽略 import-is-undefined 警告
	},
	sourcemap: prod ? false : 'inline',
	treeShaking: true,
	outfile: 'main.js',
	minify: prod,
	// 生产环境去掉调试语句与版权注释以进一步减小体积
	drop: prod ? ['console', 'debugger'] : [],
	legalComments: prod ? 'none' : 'inline',
	metafile: true,
})

if (prod) {
	const result = await context.rebuild()
	
	// 如果启用分析，生成可视化报告
	if (process.env.ANALYZE && result.metafile) {
		const fs = await import('fs')
		
		// 将 metafile 写入临时文件，然后使用命令行工具
		fs.writeFileSync('metafile.json', JSON.stringify(result.metafile))
		console.log('📊 Generating bundle analysis report...')
		
		// 使用命令行工具生成报告
		const { exec } = await import('child_process')
		exec('npx esbuild-visualizer --metadata metafile.json --filename bundle-analysis.html --template treemap --open', (error, stdout, stderr) => {
			if (error) {
				console.error('Error generating report:', error)
			} else {
				console.log('📊 Bundle analysis report generated: bundle-analysis.html')
				// 清理临时文件
				try {
					fs.unlinkSync('metafile.json')
				} catch (e) {}
			}
		})
	}
	
	process.exit(0)
} else {
	await context.watch()
}