#!/usr/local/bin/julia

###############################################################################
##
##    
##     Copyright (C) 2017 Justin Moore
##
##    This program is free software: you can redistribute it and/or modify
##    it under the terms of the GNU General Public License as published by
##    the Free Software Foundation, either version 3 of the License, or
##    (at your option) any later version.
##
##    This program is distributed in the hope that it will be useful,
##    but WITHOUT ANY WARRANTY; without even the implied warranty of
##    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
##    GNU General Public License for more details.
##
##    You should have received a copy of the GNU General Public License
##    along with this program.  If not, see <http://www.gnu.org/licenses/>.
##
##############################################################################
DEBUG = false # enable for verbose messages

function check_dir(directory)
    
    if ispath(directory)
        if DEBUG == true print("The directory: ", directory, " already exists\n") end
        return true
    
    else
        if DEBUG == true print("The directory: ", directory, " does not exist\n") end
        return false
    end


end

function check_file(filePath)
    if isfile(filePath) 
        if DEBUG == true print("File: ", filePath, " exists\n") end
        return true

    else
        if DEBUG == false print("File: ", filePath, " does not exist\n") end
        return false
    end
end

function create_default_structure(projectDir)
    
    subDirs = ["src", "lib"]
    for dirs in subDirs

        mkpath("$projectDir/$dirs")
    end


    projectName = rsearchindex(projectDir, "/" )

    if DEBUG == true print(projectName, "\n") end
    projectName = projectDir[projectName+1:length(projectDir)]
        

    touch("$projectDir/src/$projectName.jl")
    touch("$projectDir/README.md")
    touch("$projectDir/LICENSE")
    git_init("$projectDir")
end

function git_init(projectPath)
    LibGit2.init("$projectPath", false) # Initialize git repository
    if check_dir("$projectPath/.git") == true
        print("Initialized git repository in $projectPath\n")

    end
end

function help()
    print("\n", "useage:  jprog init <project name>", "\n", "\n")
    
    print("init     Create a new project\n")
end

function main()
    
    if (length(ARGS) == 2 && ARGS[1] == "init")

        if DEBUG == true print("ARGS Count: ", length(ARGS), "\n") end

        if check_dir(ARGS[2]) == true
            if DEBUG == true print("Dir exists") end

        else
            create_default_structure(ARGS[2])
            if check_dir(ARGS[2]) == true
                print("Project: ", ARGS[2], " created\n")
            else
                print("The directory: ", ARGS[2], " could not be created\n")
            end
        end
    else
        help()
    end
end

main()