/* eslint-disable @typescript-eslint/no-use-before-define */ import path from "path";
import { pathToFileURL } from "url";
import { platform, arch } from "os";
import { platformArchTriples } from "next/dist/compiled/@napi-rs/triples";
import * as Log from "../output/log";
import { getParserOptions } from "./options";
import { eventSwcLoadFailure } from "../../telemetry/events/swc-load-failure";
import { patchIncorrectLockfile } from "../../lib/patch-incorrect-lockfile";
import { downloadWasmSwc } from "../../lib/download-wasm-swc";
import { spawn } from "child_process";
const nextVersion = "13.2.5-canary.17";
const ArchName = arch();
const PlatformName = platform();
const triples = platformArchTriples[PlatformName][ArchName] || [];
const infoLog = (...args)=>{
    if (process.env.NEXT_PRIVATE_BUILD_WORKER) {
        return;
    }
    Log.info(...args);
};
// Allow to specify an absolute path to the custom turbopack binary to load.
// If one of env variables is set, `loadNative` will try to use any turbo-* interfaces from specified
// binary instead. This will not affect existing swc's transform, or other interfaces. This is thin,
// naive interface - `loadBindings` will not validate neither path nor the binary.
//
// Note these are internal flag: there's no stability, feature guarantee.
const __INTERNAL_CUSTOM_TURBOPACK_BINARY = process.env.__INTERNAL_CUSTOM_TURBOPACK_BINARY;
const __INTERNAL_CUSTOM_TURBOPACK_BINDINGS = process.env.__INTERNAL_CUSTOM_TURBOPACK_BINDINGS;
export const __isCustomTurbopackBinary = async ()=>{
    if (!!__INTERNAL_CUSTOM_TURBOPACK_BINARY && !!__INTERNAL_CUSTOM_TURBOPACK_BINDINGS) {
        throw new Error("Cannot use TURBOPACK_BINARY and TURBOPACK_BINDINGS both");
    }
    return !!__INTERNAL_CUSTOM_TURBOPACK_BINARY || !!__INTERNAL_CUSTOM_TURBOPACK_BINDINGS;
};
function checkVersionMismatch(pkgData) {
    const version = pkgData.version;
    if (version && version !== nextVersion) {
        Log.warn(`Mismatching @next/swc version, detected: ${version} while Next.js is on ${nextVersion}. Please ensure these match`);
    }
}
// These are the platforms we'll try to load wasm bindings first,
// only try to load native bindings if loading wasm binding somehow fails.
// Fallback to native binding is for migration period only,
// once we can verify loading-wasm-first won't cause visible regressions,
// we'll not include native bindings for these platform at all.
const knownDefaultWasmFallbackTriples = [
    "aarch64-linux-android",
    "x86_64-unknown-freebsd",
    "aarch64-pc-windows-msvc",
    "arm-linux-androideabi",
    "armv7-unknown-linux-gnueabihf",
    "i686-pc-windows-msvc", 
];
let nativeBindings;
let wasmBindings;
let downloadWasmPromise;
let pendingBindings;
let swcTraceFlushGuard;
let swcCrashReporterFlushGuard;
export const lockfilePatchPromise = {};
export async function loadBindings() {
    if (pendingBindings) {
        return pendingBindings;
    }
    const isCustomTurbopack = await __isCustomTurbopackBinary();
    pendingBindings = new Promise(async (resolve, _reject)=>{
        if (!lockfilePatchPromise.cur) {
            // always run lockfile check once so that it gets patched
            // even if it doesn't fail to load locally
            lockfilePatchPromise.cur = patchIncorrectLockfile(process.cwd()).catch(console.error);
        }
        let attempts = [];
        const shouldLoadWasmFallbackFirst = triples.some((triple)=>{
            return !!(triple == null ? void 0 : triple.raw) && knownDefaultWasmFallbackTriples.includes(triple.raw);
        });
        if (shouldLoadWasmFallbackFirst) {
            const fallbackBindings = await tryLoadWasmWithFallback(attempts);
            if (fallbackBindings) {
                return resolve(fallbackBindings);
            }
        }
        try {
            return resolve(loadNative(isCustomTurbopack));
        } catch (a) {
            attempts = attempts.concat(a);
        }
        // For these platforms we already tried to load wasm and failed, skip reattempt
        if (!shouldLoadWasmFallbackFirst) {
            const fallbackBindings = await tryLoadWasmWithFallback(attempts);
            if (fallbackBindings) {
                return resolve(fallbackBindings);
            }
        }
        logLoadFailure(attempts, true);
    });
    return pendingBindings;
}
async function tryLoadWasmWithFallback(attempts) {
    try {
        let bindings = await loadWasm();
        // @ts-expect-error TODO: this event has a wrong type.
        eventSwcLoadFailure({
            wasm: "enabled"
        });
        return bindings;
    } catch (a) {
        attempts = attempts.concat(a);
    }
    try {
        // if not installed already download wasm package on-demand
        // we download to a custom directory instead of to node_modules
        // as node_module import attempts are cached and can't be re-attempted
        // x-ref: https://github.com/nodejs/modules/issues/307
        const wasmDirectory = path.join(path.dirname(require.resolve("next/package.json")), "wasm");
        if (!downloadWasmPromise) {
            downloadWasmPromise = downloadWasmSwc(nextVersion, wasmDirectory);
        }
        await downloadWasmPromise;
        let bindings = await loadWasm(pathToFileURL(wasmDirectory).href);
        // @ts-expect-error TODO: this event has a wrong type.
        eventSwcLoadFailure({
            wasm: "fallback"
        });
        // still log native load attempts so user is
        // aware it failed and should be fixed
        for (const attempt of attempts){
            Log.warn(attempt);
        }
        return bindings;
    } catch (a1) {
        attempts = attempts.concat(a1);
    }
}
function loadBindingsSync() {
    let attempts = [];
    try {
        return loadNative();
    } catch (a) {
        attempts = attempts.concat(a);
    }
    // we can leverage the wasm bindings if they are already
    // loaded
    if (wasmBindings) {
        return wasmBindings;
    }
    logLoadFailure(attempts);
}
let loggingLoadFailure = false;
function logLoadFailure(attempts, triedWasm = false) {
    // make sure we only emit the event and log the failure once
    if (loggingLoadFailure) return;
    loggingLoadFailure = true;
    for (let attempt of attempts){
        Log.warn(attempt);
    }
    // @ts-expect-error TODO: this event has a wrong type.
    eventSwcLoadFailure({
        wasm: triedWasm ? "failed" : undefined
    }).then(()=>lockfilePatchPromise.cur || Promise.resolve()).finally(()=>{
        Log.error(`Failed to load SWC binary for ${PlatformName}/${ArchName}, see more info here: https://nextjs.org/docs/messages/failed-loading-swc`);
        process.exit(1);
    });
}
async function loadWasm(importPath = "") {
    if (wasmBindings) {
        return wasmBindings;
    }
    let attempts = [];
    for (let pkg of [
        "@next/swc-wasm-nodejs",
        "@next/swc-wasm-web"
    ]){
        try {
            let pkgPath = pkg;
            if (importPath) {
                // the import path must be exact when not in node_modules
                pkgPath = path.join(importPath, pkg, "wasm.js");
            }
            let bindings = await import(pkgPath);
            if (pkg === "@next/swc-wasm-web") {
                bindings = await bindings.default();
            }
            infoLog("Using wasm build of next-swc");
            // Note wasm binary does not support async intefaces yet, all async
            // interface coereces to sync interfaces.
            wasmBindings = {
                isWasm: true,
                transform (src, options) {
                    // TODO: we can remove fallback to sync interface once new stable version of next-swc gets published (current v12.2)
                    return (bindings == null ? void 0 : bindings.transform) ? bindings.transform(src.toString(), options) : Promise.resolve(bindings.transformSync(src.toString(), options));
                },
                transformSync (src, options) {
                    return bindings.transformSync(src.toString(), options);
                },
                minify (src, options) {
                    return (bindings == null ? void 0 : bindings.minify) ? bindings.minify(src.toString(), options) : Promise.resolve(bindings.minifySync(src.toString(), options));
                },
                minifySync (src, options) {
                    return bindings.minifySync(src.toString(), options);
                },
                parse (src, options) {
                    return (bindings == null ? void 0 : bindings.parse) ? bindings.parse(src.toString(), options) : Promise.resolve(bindings.parseSync(src.toString(), options));
                },
                parseSync (src, options) {
                    const astStr = bindings.parseSync(src.toString(), options);
                    return astStr;
                },
                getTargetTriple () {
                    return undefined;
                },
                turbo: {
                    startDev: ()=>{
                        Log.error("Wasm binding does not support --turbo yet");
                    },
                    startTrace: ()=>{
                        Log.error("Wasm binding does not support trace yet");
                    }
                },
                mdx: {
                    compile: (src, options)=>bindings.mdxCompile(src, options),
                    compileSync: (src, options)=>bindings.mdxCompileSync(src, options)
                }
            };
            return wasmBindings;
        } catch (e) {
            // Only log attempts for loading wasm when loading as fallback
            if (importPath) {
                if ((e == null ? void 0 : e.code) === "ERR_MODULE_NOT_FOUND") {
                    attempts.push(`Attempted to load ${pkg}, but it was not installed`);
                } else {
                    attempts.push(`Attempted to load ${pkg}, but an error occurred: ${e.message ?? e}`);
                }
            }
        }
    }
    throw attempts;
}
function loadNative(isCustomTurbopack = false) {
    if (nativeBindings) {
        return nativeBindings;
    }
    let bindings;
    let attempts = [];
    for (const triple of triples){
        try {
            bindings = require(`@next/swc/native/next-swc.${triple.platformArchABI}.node`);
            infoLog("Using locally built binary of @next/swc");
            break;
        } catch (e) {}
    }
    if (!bindings) {
        for (const triple of triples){
            let pkg = `@next/swc-${triple.platformArchABI}`;
            try {
                bindings = require(pkg);
                checkVersionMismatch(require(`${pkg}/package.json`));
                break;
            } catch (e) {
                if ((e == null ? void 0 : e.code) === "MODULE_NOT_FOUND") {
                    attempts.push(`Attempted to load ${pkg}, but it was not installed`);
                } else {
                    attempts.push(`Attempted to load ${pkg}, but an error occurred: ${e.message ?? e}`);
                }
            }
        }
    }
    if (bindings) {
        // Initialize crash reporter, as earliest as possible from any point of import.
        // The first-time import to next-swc is not predicatble in the import tree of next.js, which makes
        // we can't rely on explicit manual initialization as similar to trace reporter.
        if (!swcCrashReporterFlushGuard) {
        // Crash reports in next-swc should be treated in the same way we treat telemetry to opt out.
        /* TODO: temporarily disable initialization while confirming logistics.
      let telemetry = new Telemetry({ distDir: process.cwd() })
      if (telemetry.isEnabled) {
        swcCrashReporterFlushGuard = bindings.initCrashReporter?.()
      }*/ }
        nativeBindings = {
            isWasm: false,
            transform (src, options) {
                var ref;
                const isModule = typeof src !== undefined && typeof src !== "string" && !Buffer.isBuffer(src);
                options = options || {};
                if (options == null ? void 0 : (ref = options.jsc) == null ? void 0 : ref.parser) {
                    options.jsc.parser.syntax = options.jsc.parser.syntax ?? "ecmascript";
                }
                return bindings.transform(isModule ? JSON.stringify(src) : src, isModule, toBuffer(options));
            },
            transformSync (src, options) {
                var ref;
                if (typeof src === undefined) {
                    throw new Error("transformSync doesn't implement reading the file from filesystem");
                } else if (Buffer.isBuffer(src)) {
                    throw new Error("transformSync doesn't implement taking the source code as Buffer");
                }
                const isModule = typeof src !== "string";
                options = options || {};
                if (options == null ? void 0 : (ref = options.jsc) == null ? void 0 : ref.parser) {
                    options.jsc.parser.syntax = options.jsc.parser.syntax ?? "ecmascript";
                }
                return bindings.transformSync(isModule ? JSON.stringify(src) : src, isModule, toBuffer(options));
            },
            minify (src, options) {
                return bindings.minify(toBuffer(src), toBuffer(options ?? {}));
            },
            minifySync (src, options) {
                return bindings.minifySync(toBuffer(src), toBuffer(options ?? {}));
            },
            parse (src, options) {
                return bindings.parse(src, toBuffer(options ?? {}));
            },
            getTargetTriple: bindings.getTargetTriple,
            initCustomTraceSubscriber: bindings.initCustomTraceSubscriber,
            teardownTraceSubscriber: bindings.teardownTraceSubscriber,
            teardownCrashReporter: bindings.teardownCrashReporter,
            turbo: {
                startDev: (options)=>{
                    const devOptions = {
                        ...options,
                        noOpen: options.noOpen ?? true
                    };
                    if (!isCustomTurbopack) {
                        bindings.startTurboDev(toBuffer(devOptions));
                    } else if (!!__INTERNAL_CUSTOM_TURBOPACK_BINARY) {
                        console.warn(`Loading custom turbopack binary from ${__INTERNAL_CUSTOM_TURBOPACK_BINARY}`);
                        return new Promise((resolve, reject)=>{
                            const args = [];
                            Object.entries(devOptions).forEach(([key, value])=>{
                                let cli_key = `--${key.replace(/[A-Z]/g, (m)=>"-" + m.toLowerCase())}`;
                                if (key === "dir") {
                                    args.push(value);
                                } else if (typeof value === "boolean" && value === true) {
                                    args.push(cli_key);
                                } else if (typeof value !== "boolean" && !!value) {
                                    args.push(cli_key, value);
                                }
                            });
                            console.warn(`Running turbopack with args: [${args.join(" ")}]`);
                            let child = spawn(__INTERNAL_CUSTOM_TURBOPACK_BINARY, args, {
                                stdio: "pipe"
                            });
                            child.on("message", (message)=>{
                                require("console").log(message);
                            });
                            child.stdout.on("data", (data)=>{
                                require("console").log(data.toString());
                            });
                            child.stderr.on("data", (data)=>{
                                require("console").log(data.toString());
                            });
                            child.on("close", (code)=>{
                                if (code !== 0) {
                                    reject({
                                        command: `${__INTERNAL_CUSTOM_TURBOPACK_BINARY} ${args.join(" ")}`
                                    });
                                    return;
                                }
                                resolve(0);
                            });
                            process.on("beforeExit", ()=>{
                                if (child) {
                                    console.log("Killing turbopack process");
                                    child.kill();
                                    child = null;
                                }
                            });
                        });
                    } else if (!!__INTERNAL_CUSTOM_TURBOPACK_BINDINGS) {
                        console.warn(`Loading custom turbopack bindings from ${__INTERNAL_CUSTOM_TURBOPACK_BINARY}`);
                        console.warn(`Running turbopack with args: `, devOptions);
                        require(__INTERNAL_CUSTOM_TURBOPACK_BINDINGS).startDev(devOptions);
                    }
                },
                nextBuild: (options)=>{
                    return bindings.nextBuild(options);
                },
                startTrace: (options = {}, turboTasks)=>bindings.runTurboTracing(toBuffer({
                        exact: true,
                        ...options
                    }), turboTasks),
                createTurboTasks: (memoryLimit)=>bindings.createTurboTasks(memoryLimit)
            },
            mdx: {
                compile: (src, options)=>bindings.mdxCompile(src, toBuffer(options ?? {})),
                compileSync: (src, options)=>bindings.mdxCompileSync(src, toBuffer(options ?? {}))
            }
        };
        return nativeBindings;
    }
    throw attempts;
}
function toBuffer(t) {
    return Buffer.from(JSON.stringify(t));
}
export async function isWasm() {
    let bindings = await loadBindings();
    return bindings.isWasm;
}
export async function transform(src, options) {
    let bindings = await loadBindings();
    return bindings.transform(src, options);
}
export function transformSync(src, options) {
    let bindings = loadBindingsSync();
    return bindings.transformSync(src, options);
}
export async function minify(src, options) {
    let bindings = await loadBindings();
    return bindings.minify(src, options);
}
export function minifySync(src, options) {
    let bindings = loadBindingsSync();
    return bindings.minifySync(src, options);
}
export async function parse(src, options) {
    let bindings = await loadBindings();
    let parserOptions = getParserOptions(options);
    return bindings.parse(src, parserOptions).then((astStr)=>JSON.parse(astStr));
}
export function getBinaryMetadata() {
    let bindings;
    try {
        bindings = loadNative();
    } catch (e) {
    // Suppress exceptions, this fn allows to fail to load native bindings
    }
    return {
        target: bindings == null ? void 0 : bindings.getTargetTriple == null ? void 0 : bindings.getTargetTriple()
    };
}
/**
 * Initialize trace subscriber to emit traces.
 *
 */ export const initCustomTraceSubscriber = (traceFileName)=>{
    if (!swcTraceFlushGuard) {
        // Wasm binary doesn't support trace emission
        let bindings = loadNative();
        swcTraceFlushGuard = bindings.initCustomTraceSubscriber(traceFileName);
    }
};
/**
 * Teardown swc's trace subscriber if there's an initialized flush guard exists.
 *
 * This is workaround to amend behavior with process.exit
 * (https://github.com/vercel/next.js/blob/4db8c49cc31e4fc182391fae6903fb5ef4e8c66e/packages/next/bin/next.ts#L134=)
 * seems preventing napi's cleanup hook execution (https://github.com/swc-project/swc/blob/main/crates/node/src/util.rs#L48-L51=),
 *
 * instead parent process manually drops guard when process gets signal to exit.
 */ export const teardownTraceSubscriber = (()=>{
    let flushed = false;
    return ()=>{
        if (!flushed) {
            flushed = true;
            try {
                let bindings = loadNative();
                if (swcTraceFlushGuard) {
                    bindings.teardownTraceSubscriber(swcTraceFlushGuard);
                }
            } catch (e) {
            // Suppress exceptions, this fn allows to fail to load native bindings
            }
        }
    };
})();
export const teardownCrashReporter = (()=>{
    let flushed = false;
    return ()=>{
        if (!flushed) {
            flushed = true;
            try {
                let bindings = loadNative();
                if (swcCrashReporterFlushGuard) {
                    bindings.teardownCrashReporter(swcCrashReporterFlushGuard);
                }
            } catch (e) {
            // Suppress exceptions, this fn allows to fail to load native bindings
            }
        }
    };
})();

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