import { transform } from '@swc/core'
import type { RolldownPlugin } from 'rolldown'

export default function hermesSwcPlugin(): RolldownPlugin {
    return {
        name: 'swc',
        transform: {
            filter: {
                moduleType: ['js', 'jsx', 'ts', 'tsx'],
            },
            handler(code) {
                return transform(code, {
                    jsc: {
                        transform: {
                            react: {
                                runtime: 'automatic',
                            },
                        },
                        parser: {
                            syntax: 'typescript',
                            tsx: true,
                        },
                    },
                    env: {
                        // https://github.com/facebook/hermes/blob/main/doc/Features.md
                        targets: 'fully supports es6',
                        include: [
                            'transform-async-generator-functions',
                            'transform-block-scoping',
                            'transform-classes',
                            'transform-duplicate-named-capturing-groups-regex',
                            'transform-named-capturing-groups-regex',
                        ],
                        exclude: [
                            // Async functions are supported, only async arrow functions aren't
                            // Source: https://github.com/facebook/hermes/issues/1395
                            'transform-async-to-generator',
                            'transform-exponentiation-operator',
                            'transform-logical-assignment-operators',
                            'transform-nullish-coalescing-operator',
                            'transform-numeric-separator',
                            'transform-object-rest-spread',
                            'transform-optional-catch-binding',
                            'transform-optional-chaining',
                            'transform-parameters',
                            'transform-template-literals',
                        ],
                    },
                })
            },
        },
    }
}