-----BigReactor Control Installer
-----by jaranvil aka jared314

-----feel free to use and/or mondify this code
-----------------------------------------------


--Run this program to install either reactor or turbine control programs.


-----------------PASTEBINs--------------------------
installer = "p4zeq7Ma"
reactor_control_pastebin = "RCPEHmxs"
turbine_control_pastebin = "5B8h94V4"

reactor_startup = "cZUH7y6k"
turbine_startup = "h0jmye6t"

reactor_update_check = "MkF2QQjH"
turbine_update_check = "QP3qrzNu"

dev_installer = "mCPQQ3Ge"
dev_reactor_control_pastebin = "eYwBw9a3"
dev_turbine_control_pastebin = "kJHeCx0Q"
---------------------------------------------

term.clear()
-------------------FORMATTING-------------------------------

function draw_text_term(x, y, text, text_color, bg_color)
    term.setTextColor(text_color)
    term.setBackgroundColor(bg_color)
    term.setCursorPos(x,y)
    write(text)
end

function draw_line_term(x, y, length, color)
        term.setBackgroundColor(color)
        term.setCursorPos(x,y)
        term.write(string.rep(" ", length))
end

function progress_bar_term(x, y, length, minVal, maxVal, bar_color, bg_color)
    draw_line_term(x, y, length, bg_color) --backgoround bar
    local barSize = math.floor((minVal/maxVal) * length)
    draw_line_term(x, y, barSize, bar_color)    --progress so far
end

function menu_bars()

    draw_line_term(1, 1, 55, colors.blue)
    draw_text_term(10, 1, "BigReactors Control Installer", colors.white, colors.blue)

    draw_line_term(1, 19, 55, colors.blue)
    draw_text_term(10, 19, "by jaranvil aka jared314", colors.white, colors.blue)
end

--------------------------------------------------------------



function install(program, pastebin)
    term.clear()
    menu_bars()

    draw_text_term(1, 3, "Installing "..program.."...", colors.yellow, colors.black)
    term.setCursorPos(1,5)
    term.setTextColor(colors.white)
    sleep(0.5)

    -----------------Install control program---------------


    --delete any old backups
    if fs.exists(program.."_old") then
        fs.delete(program.."_old")
    end

    --backup current program
    if fs.exists(program) then
        fs.copy(program, program.."_old")
        fs.delete(program)
    end

    --remove program and fetch new copy

    shell.run("pastebin get "..pastebin.." "..program)

    sleep(0.5)

    ------------------Install startup script-------------

    term.setCursorPos(1,8)

    --delete any old backups
    if fs.exists("startup_old") then
        fs.delete("startup_old")
    end

    --backup current program
    if fs.exists("startup") then
        fs.copy("startup", "startup_old")
        fs.delete("startup")
    end


    if program == "reactor_control" then
        shell.run("pastebin get "..reactor_startup.." startup")
    else if program == "turbine_control" then
        shell.run("pastebin get "..turbine_startup.." startup")
    end
    end

    if fs.exists(program) then
        draw_text_term(1, 11, "Success!", colors.lime, colors.black)
        draw_text_term(1, 12, "Press Enter to reboot...", colors.gray, colors.black)
        wait = read()
        shell.run("reboot")
    else
        draw_text_term(1, 11, "Error installing file.", colors.red, colors.black)
        sleep(0.1)
        draw_text_term(1, 12, "Restoring old file...", colors.gray, colors.black)
        sleep(0.1)
        fs.copy(program.."_old", program)
        fs.delete(program.."_old")

        draw_text_term(1, 14, "Press Enter to continue...", colors.gray, colors.black)
        wait = read()
        start()
    end
end


---------------------------------------------------------------

function start()
    term.clear()
    menu_bars()

    draw_text_term(1, 4, "What would you like to install or update?", colors.yellow, colors.black)
    draw_text_term(3, 6, "1 - Reactor Control", colors.white, colors.black)
    draw_text_term(3, 7, "2 - Turbine Control", colors.white, colors.black)
    draw_text_term(1, 9, "Enter 1 or 2:", colors.yellow, colors.black)

    term.setCursorPos(1,10)
    term.setTextColor(colors.white)
    input = read()

    if input == "1" then
        install("reactor_control", reactor_control_pastebin)
    else if input == "2" then
        install("turbine_control", turbine_control_pastebin)
    else if input == "dev1" then
        install("reactor_control", dev_reactor_control_pastebin)
    else if input == "dev2" then
        install("turbine_control", dev_turbine_control_pastebin)
    else
        draw_text_term(1, 12, "please enter a '1' or '2'.", colors.red, colors.black)
        sleep(1)
        start()
    end
    end
    end
    end

end

start()