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import Semver from 'semver';

import type {CompilationResult, ExecutionOptions} from '../../types/compilation/compilation.interfaces.js';
import type {PreliminaryCompilerInfo} from '../../types/compiler.interfaces.js';
import type {ParseFiltersAndOutputOptions} from '../../types/features/filters.interfaces.js';
import {BaseCompiler} from '../base-compiler.js';
import {asSafeVer} from '../utils.js';

import {TypeScriptNativeParser} from './argument-parsers.js';
import {LLVMIrBackendOptions} from '../../types/compilation/ir.interfaces.js';

export class TypeScriptNativeCompiler extends BaseCompiler {
    static get key() {
        return 'typescript';
    }

    tscJit: string;
    tscSharedLib: string;
    tscNewOutput: boolean;

    constructor(compilerInfo: PreliminaryCompilerInfo, env) {
        super(compilerInfo, env);

        this.compiler.supportsIntel = false;
        this.compiler.supportsIrView = true;

        this.tscJit = this.compiler.exe;
        this.tscSharedLib = this.compilerProps<string>(`compiler.${this.compiler.id}.sharedlibs`);
        this.tscNewOutput = Semver.gt(asSafeVer(this.compiler.semver || '0.0.0'), '0.0.32', true);
    }

    override getSharedLibraryPathsAsArguments() {
        return [];
    }

    override optionsForFilter(filters: ParseFiltersAndOutputOptions, outputFilename: string) {
        return [this.filename(outputFilename)];
    }

    override async handleInterpreting(key, executeParameters) {
        executeParameters.args = [
            '--emit=jit',
            this.tscSharedLib ? '--shared-libs=' + this.tscSharedLib : '-nogc',
            ...executeParameters.args,
        ];

        return await super.handleInterpreting(key, executeParameters);
    }

    override async runCompiler(
        compiler: string,
        options: string[],
        inputFilename: string,
        execOptions: ExecutionOptions,
    ): Promise<CompilationResult> {
        // These options make Clang produce an IR
        const newOptions = ['--emit=mlir-llvm', inputFilename];

        if (!this.tscSharedLib) {
            newOptions.push('-nogc');
        }

        const output = await this.runCompilerRawOutput(
            this.tscJit,
            newOptions,
            this.filename(inputFilename),
            execOptions,
        );
        if (output.code !== 0) {
            return {
                code: output.code,
                timedOut: false,
                stdout: [],
                stderr: [
                    {
                        text: 'Failed to run compiler to get MLIR code',
                    },
                ],
            };
        }

        return {code: 0, timedOut: false, stdout: [], stderr: []};
    }

    override async generateIR(
        inputFilename: string,
        options: string[],
        irOptions: LLVMIrBackendOptions,
        filters: ParseFiltersAndOutputOptions,
    ) {
        // These options make Clang produce an IR
        let newOptions = ['--emit=llvm', inputFilename];
        if (this.tscNewOutput) {
            newOptions = ['--emit=llvm', '-o=-', inputFilename];
        }

        if (!this.tscSharedLib) {
            newOptions.push('-nogc');
        }

        const execOptions = this.getDefaultExecOptions();
        // TODO: maybe this isn't needed?
        execOptions.maxOutput = 1024 * 1024 * 1024;

        const output = await this.runCompilerRawOutput(
            this.tscJit,
            newOptions,
            this.filename(inputFilename),
            execOptions,
        );
        if (output.code !== 0) {
            return [{text: 'Failed to run compiler to get IR code'}];
        }

        filters.commentOnly = false;
        filters.libraryCode = true;
        filters.directives = true;

        const ir = await this.llvmIr.process(this.tscNewOutput ? output.stdout : output.stderr, irOptions);
        return ir.asm;
    }

    override isCfgCompiler() {
        return true;
    }

    override getArgumentParser() {
        return TypeScriptNativeParser;
    }
}