import { defineConfig } from 'vite'
import path from 'node:path'
import { has } from '@aklive2d/operator'
import { envParser, file } from '@aklive2d/libs'
import { copyShowcaseData } from '@aklive2d/vite-helpers'
import * as dirs from './index.js'

// https://vite.dev/config/
export default defineConfig(({ command, isPreview }) => {
    let newOutDir = dirs.OUT_DIR
    if (command === 'serve') {
        const { name } = envParser.parse({
            name: {
                type: 'string',
                short: 'n',
            },
        })
        if (!name) {
            throw new Error('Please set the operator name.')
        }
        if (!has(name)) {
            throw new Error(`Invalid operator name: ${name}`)
        }
        if (isPreview) {
            newOutDir = path.join(dirs.DIST_DIR, name)
        } else {
            file.rm(dirs.DATA_DIR)
            copyShowcaseData(name, {
                dataDir: dirs.DATA_DIR,
                publicAssetsDir: dirs.PUBLIC_ASSETS_DIR,
            })
        }
    }

    return {
        base: '',
        resolve: {
            alias: {
                '@': path.resolve('./src'),
                '!': dirs.DATA_DIR,
            },
        },
        envDir: dirs.DATA_DIR,
        publicDir: dirs.PUBLIC_DIR,
        build: {
            chunkSizeWarningLimit: 10000,
            outDir: newOutDir,
            rollupOptions: {
                output: {
                    entryFileNames: `assets/[name].js`,
                    chunkFileNames: `assets/[name].js`,
                    assetFileNames: `assets/[name].[ext]`,
                },
            },
        },
    }
})