// Copyright (c) 2022, Compiler Explorer Authors
// All rights reserved.
//
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import path from 'path';

import type {ExecutionOptionsWithEnv} 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 {CompilationEnvironment} from '../compilation-env.js';
import {logger} from '../logger.js';
import {SPIRVAsmParser} from '../parsers/asm-parser-spirv.js';
import * as utils from '../utils.js';

export class CLSPVCompiler extends BaseCompiler {
    disassemblerPath: any;

    static get key() {
        return 'clspv';
    }

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

        this.asm = new SPIRVAsmParser(this.compilerProps);

        this.disassemblerPath = this.compilerProps('disassemblerPath');
    }

    getPrimaryOutputFilename(dirPath: string, outputFilebase: string) {
        return path.join(dirPath, `${outputFilebase}.spv`);
    }

    override optionsForFilter(filters: ParseFiltersAndOutputOptions, outputFilename: string) {
        const sourceDir = path.dirname(outputFilename);
        const spvBinFilename = this.getPrimaryOutputFilename(sourceDir, this.outputFilebase);
        return ['-o', spvBinFilename, '-g'];
    }

    // TODO: Check this to see if it needs key
    override getOutputFilename(dirPath: string, outputFilebase: string) {
        return path.join(dirPath, `${outputFilebase}.spvasm`);
    }

    override async runCompiler(
        compiler: string,
        options: string[],
        inputFilename: string,
        execOptions: ExecutionOptionsWithEnv,
    ) {
        const sourceDir = path.dirname(inputFilename);
        const spvBinFilename = this.getPrimaryOutputFilename(sourceDir, this.outputFilebase);

        if (!execOptions) {
            execOptions = this.getDefaultExecOptions();
        }
        execOptions.customCwd = path.dirname(inputFilename);

        const spvBin = await this.exec(compiler, options, execOptions);
        const result = this.transformToCompilationResult(spvBin, inputFilename);

        if (spvBin.code !== 0 || !(await utils.fileExists(spvBinFilename))) {
            return result;
        }

        const spvasmFilename = this.getOutputFilename(sourceDir, this.outputFilebase);
        const disassemblerFlags = [spvBinFilename, '-o', spvasmFilename, '--comment'];

        const spvasmOutput = await this.exec(this.disassemblerPath, disassemblerFlags, execOptions);
        if (spvasmOutput.code !== 0) {
            logger.error('SPIR-V binary to text failed', spvasmOutput);
        }

        result.stdout = result.stdout.concat(utils.parseOutput(spvasmOutput.stdout));
        result.stderr = result.stderr.concat(utils.parseOutput(spvasmOutput.stderr));
        result.languageId = 'spirv';
        return result;
    }
}
