#run a command only once
export def "run" [
    name: string
    task: closure 
    #is the code which will be executed
    --reset: bool = false
    #means we redo the command
] { 
    let $state_dir = $"($env.BASE)/done"
    mkdir $state_dir
    let $state_file = $"($state_dir)/nu_done_($name)"
    if  ($reset or (not ($state_file | path exists ) ) ) {
        let start = date now
        # let result = do $task
        do $task
        let end = date now
        let total = $end - $start | format duration sec
        let body = $"given task finished in ($total)"  
        "" | save $state_file -f
        # return $result
    # } else {
    #     "Command " + $name + " has already been run."
    }

}

#reset all the done states
export def "reset" [
    prefix: string
] {
    ls $"($env.BASE)/done/nu_done*" | each { |it| rm $it.name}
}



# runonce once 'lls' { ls / } --reset true


# def "runonce" [
#     name: string
#     task: closure 
#     #is the code which will be executed
#     --reset: bool = false
#     #means we redo the command
# ] { 
#     let state_file = [ $env.BASE 'hero' ('nu_done_' + $name) ] | path join
#     if  ($reset or (not ($state_file | path exists ) ) ) {
#         let start = date now
#         # let result = do $task
#         do $task
#         let end = date now
#         let total = $end - $start | format duration sec
#         let body = $"given task finished in ($total)"  
#         "" | save $state_file -f
#         # return $result
#     # } else {
#     #     "Command " + $name + " has already been run."
#     }

# }