import fs from 'node:fs'
import path from 'node:path'
import process from 'node:process'
import { glob } from 'glob'

export function getProjects() {
  return glob
    .sync('packages/*')
    .sort()
    .filter(item => !item.endsWith('artplayer-vitepress'))
    .filter(item => fs.existsSync(path.join(item, 'package.json')))
    .reduce((result, item) => {
      const name = item.split(/\/|\\/g).pop()
      result[name] = path.resolve(process.cwd(), item)
      return result
    }, {})
}

// Convert kebab-case to PascalCase: artplayer-plugin-ads -> ArtplayerPluginAds
export function toPascalCase(name) {
  return name.replace(/(^|-)([a-z])/g, (_, _p, c) => c.toUpperCase())
}

// Get Vite build config
export function getViteBuildConfig(options) {
  const {
    entry,
    outDir,
    name,
    format,
    fileName,
    minify = 'esbuild',
    target = 'es2020',
    banner,
    emptyOutDir = false,
  } = options

  const config = {
    configFile: false,
    logLevel: 'warn',
    build: {
      outDir,
      emptyOutDir,
      minify,
      target,
      lib: {
        entry,
        name,
        formats: [format],
        fileName: () => fileName,
      },
      rollupOptions: {
        output: {
          exports: 'default',
        },
        plugins: banner
          ? [{
              name: 'add-banner-and-global',
              generateBundle(_, bundle) {
                for (const chunk of Object.values(bundle)) {
                  if (chunk.type === 'chunk') {
                    // Remove any inline worker banners (inside template literals)
                    // Match: `/*! ... */\n and replace with just `
                    let code = chunk.code.replace(/`\/\*![\s\S]*?\*\/\n/g, '`')
                    // Add main banner if not present
                    if (!code.startsWith('/*!')) {
                      code = `${banner}\n${code}`
                    }
                    // For UMD format, modify the wrapper to always expose global
                    // even when AMD loader is present (fix for RequireJS environments)
                    if (format === 'umd') {
                      // Match both original and minified UMD patterns:
                      // Original: typeof define === 'function' && define.amd ? define(factory) :
                      // Minified: "function"===typeof define&&define.amd?define(e):
                      // Change to: ... ? (global.Name = factory(), define(function() { return global.Name; })) :
                      code = code.replace(
                        /["']function["']\s*===?\s*typeof define\s*&&\s*define\.amd\s*\?\s*define\((\w+)\)\s*:/,
                        `"function"==typeof define&&define.amd?(t.${name}=$1(),define(function(){return t.${name}})):`,
                      )
                    }
                    chunk.code = code
                  }
                }
              },
            }]
          : [],
      },
    },
    // Disable banner for inline workers
    worker: {
      format: 'es',
      plugins: () => [{
        name: 'remove-worker-banner',
        generateBundle(_, bundle) {
          for (const chunk of Object.values(bundle)) {
            if (chunk.type === 'chunk' && chunk.code.startsWith('/*!')) {
              // Remove banner from worker code
              chunk.code = chunk.code.replace(/^\/\*![\s\S]*?\*\/\s*/, '')
            }
          }
        },
      }],
    },
    define: {
      'process.env.NODE_ENV': JSON.stringify(minify ? 'production' : 'development'),
    },
  }

  return config
}