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import qbs
import qbs.File
import qbs.FileInfo
import qbs.Probes

Module {
    // jar is a suitable fallback for creating zip files as they are the same format
    // This will most likely end up being used on Windows
    Depends { name: "java"; required: false }

    Probes.BinaryProbe {
        id: zipProbe
        names: ["zip"]
    }

    property string type
    property string archiveBaseName: product.targetName
    property string workingDirectory
    property stringList flags: []
    property path outputDirectory: product.destinationDirectory
    property string archiveExtension: {
        if (type === "7zip")
            return "7z";
        if (type == "tar") {
            var extension = "tar";
            if (compressionType !== "none")
                extension += "." + compressionType;
            return extension;
        }
        if (type === "zip")
            return "zip";
        return undefined;
    }
    property string command: {
        if (type === "7zip")
            return "7z";
        if (type === "tar")
            return "tar";
        if (type === "zip") {
            // Prefer zip (probably Info-Zip) and fall back to jar when it's not available
            // (as is the likely case on Windows)
            if (zipProbe.found)
                return zipProbe.filePath;
            if (java.present)
                return java.jarFilePath;
        }
        return undefined;
    }

    property string compressionLevel
    property string compressionType: {
        if (type === "tar")
            return "gz";
        return undefined;
    }

    PropertyOptions {
        name: "type"
        description: "The type of archive to create."
        allowedValues: ["7zip", "tar", "zip"]
    }

    PropertyOptions {
        name: "compressionLevel"
        description: "How much effort to put into compression.\n"
            + "Higher numbers mean smaller archive files at the cost of taking more time.\n"
            + "This property is only used for the '7zip' and 'zip' types.\n"
            + "'7zip' only supports 0 and odd numbers."
        allowedValues: [undefined, "0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
    }

    PropertyOptions {
        name: "compressionType"
        description: "The compression format to use.\n"
            + "For tar archives, the respective tool needs to be present.\n"
            + "This property is only used for the 'tar' and 'zip' types."
        allowedValues: ["none", "gz", "bz2", "Z", "xz", "deflate", "store"]
    }

    Rule {
        inputs: ["archiver.input-list"]

        Artifact {
            filePath: FileInfo.joinPaths(product.moduleProperty("archiver", "outputDirectory"),
                              product.moduleProperty("archiver", "archiveBaseName") + '.'
                                         + product.moduleProperty("archiver", "archiveExtension"));
            fileTags: ["archiver.archive"]
        }

        prepare: {
            var binary = product.moduleProperty("archiver", "command");
            var args = [];
            var commands = [];
            var type = product.moduleProperty("archiver", "type");
            var compression = product.moduleProperty("archiver", "compressionType");
            var compressionLevel = product.moduleProperty("archiver", "compressionLevel");
            if (type === "7zip") {
                var rmCommand = new JavaScriptCommand();
                rmCommand.silent = true;
                rmCommand.sourceCode = function() {
                    if (File.exists(output.filePath))
                        File.remove(output.filePath);
                };
                commands.push(rmCommand);
                args.push("a", "-y", "-mmt=on");
                if (compressionLevel)
                    args.push("-mx" + compressionLevel);
                args = args.concat(product.moduleProperty("archiver", "flags"));
                args.push(output.filePath);
                args.push("@" + input.filePath);
            } else if (type === "tar") {
                args.push("-c");
                if (compression === "gz")
                    args.push("-z");
                else if (compression === "bz2")
                    args.push("-j");
                else if (compression === "Z")
                    args.push("-Z");
                else if (compression === "xz")
                    args.push("-J");
                args.push("-f", output.filePath, "-T", input.filePath);
                args = args.concat(product.moduleProperty("archiver", "flags"));
            } else if (type === "zip") {
                var binaryName = FileInfo.baseName(binary);
                if (binaryName === "jar") {
                    if (compression === "none" || compressionLevel === "0")
                        args.push("-0");

                    args.push("-cfM", output.filePath, "@" + input.filePath);
                } else if (binaryName === "zip") {
                    // The "zip" program included with most Linux and Unix distributions
                    // (including OS X) is Info-ZIP's Zip, so this should be fairly portable.
                    if (compression === "none") {
                        args.push("-0");
                    } else {
                        compression = compression === "bz2" ? "bzip2" : compression;
                        if (["store", "deflate", "bzip2"].contains(compression))
                            args.push("-Z", compression);

                        if (compressionLevel)
                            args.push("-" + compressionLevel);
                    }

                    args.push("-r", output.filePath, ".", "-i@" + input.filePath);
                } else {
                    throw "Unknown zip tool '" + binaryName + "'";
                }

                args = args.concat(product.moduleProperty("archiver", "flags"));
            }
            var archiverCommand = new Command(binary, args);
            archiverCommand.description = "Creating archive file " + output.fileName;
            archiverCommand.highlight = "linker";
            archiverCommand.workingDirectory
                    = product.moduleProperty("archiver", "workingDirectory");
            commands.push(archiverCommand);
            return commands;
        }
    }
}