import qbs
import qbs.FileInfo
import qbs.ModUtils
import qbs.Environment

Module {
    property stringList includes: []
    property path protoc
    property string prefix

    property var test

    FileTagger {
        patterns: "*.proto"
        fileTags: ["proto"]
    }

    Rule {
        id: roo
        inputs: ["proto"]

        outputArtifacts: {
            var artifacts = []

            var cpp = {
                fileTags: ["cpp"],
                filePath: input.baseName + ".pb.cc"
            }

            var hpp = {
                fileTags: ["hpp"],
                filePath: input.baseName + ".pb.h"
            }

            if(input.proto.prefix !== undefined) {
                hpp.fileTags.push("gen")
                product.proto.test = "testval" // try to push value to second rule
            }

            return [cpp, hpp]
        }
        outputFileTags: ["hpp", "gen", "cpp"]

        prepare: {
            var cppOutArg = "--cpp_out=" + product.buildDirectory
            var incArgs = input.proto.includes
            .map(function(path){ return "-I" + path })
            .concat(cppOutArg, input.filePath)

            var proto_gen = new Command(product.proto.protoc, incArgs)
            proto_gen.description = "protoc " + input.filePath + " -/- " + product.proto.test // "testval" if input.proto.prefix is not undefined
            proto_gen.highlight = "codegen"

            var cmds = [proto_gen]
            return cmds
        }
    }

    Rule {
        condition: true
        inputs: ["gen"]
        Artifact {
            fileTags: ["hpp"]
            filePath: input.baseName + "..." /* product.proto.test */ + ".pb.h"
        }
        outputFileTags: ["hpp"]

        prepare: {
            var cmd = new Command("echo", ["test"])
            cmd.description = "wtf: " + input.fileName + " -/- "+ product.proto.test // undefined
            cmd.highlight = "codegen"
            var cmds = [cmd]

            return cmds
        }
    }
}