#!/usr/bin/za

#  you'll probably need to do this manually until i have the
#  patience to write a generic script. feel free to contribute one!

zahandler=`
 " Za shell scripts
  elseif s:name =~# '^za\>'
    set ft=za
`

if has_start(os(),"freebsd")
    pathRoot="/usr/local/share/vim"
else
    pathRoot="/usr/share/vim"
ei


# install for nvim
nvim=is_installed("nvim")
if nvim
  println "- Copying za.vim to nvim syntax file path"
  | ./install_nvim_syntax.sh
  exit
endif

# where's old vim at?
allPaths=[]
vim9=false
foreach p in dir(pathRoot)
    on has_start(p.name,"vim8") do allPaths=append(allPaths,p.name)
    if has_start(p.name,"vim9")
        allPaths=append(allPaths,p.name)
        vim9=true
    ei
ef

if allPaths.len>0

    println "allpaths: ({allPaths})"
    vnum=(allPaths -> "#.substr(#.len-2,2)").list_float.max
    newPath=join([pathRoot,"vim"+vnum],"/")

    println "working path: [{newPath}]"

    # check for scripts.vim stanza
    # vim9: /usr/share/vim/vim9*/autoload/dist/script.vim
    vfname="scripts.vim"
    on vim9 do vfname="script.vim"

    # construct script config file path
    infilename=join([newPath,vim9?"autoload/dist":"",vfname],"/")
    infile=infilename.read_file()

    if line_match(infile,"ft=za")
        println "stanza found"
    else
        println "In '{infilename}' insert this stanza manually:\n{zahandler}\n"
    ei

    | sudo cp -f za.vim {newPath}/ftplugin/
    | sudo cp -f za.vim {newPath}/syntax/
    | sudo chmod 755 {newPath}/{syntax,ftplugin}/za.vim

ei