//go:build windows

package uac

import (
	"b612.me/wincmd"
	"strings"
)

func RunAsUacSimple(fpath string, cmdArgs string, workDir string, showWindow bool) error {
	intShow := 0
	if showWindow {
		intShow = 1
	}
	return wincmd.StartProcess(fpath, cmdArgs, workDir, true, intShow)
}

func RunAsUac(cmdLine, workDir string, showWindow bool) error {
	intShow := 0
	if showWindow {
		intShow = 1
	}
	fpath, args := getPathArgsFromString(cmdLine)
	return wincmd.StartProcess(fpath, strings.Join(args, " "), workDir, true, intShow)
}

func getPathArgsFromString(cmdLine string) (string, []string) {
	var fpath string
	var cmdArgs []string
	var markStart rune = -1

	var tmp []rune
	var lastRune rune
	cmdLine = strings.TrimSpace(cmdLine)
	for k, v := range cmdLine {
		if v == ' ' || v == '"' || v == '\'' {
			if k == 0 {
				markStart = v
				continue
			}
			if markStart == v && v == lastRune {
				continue
			}
			if lastRune != '\\' {
				lastRune = v
				if 0 == markStart {
					markStart = v
					continue
				} else if markStart == v || markStart == -1 {
					markStart = 0
					if v == ' ' {
						markStart = v
					}
					if fpath == "" {
						fpath = string(tmp)
					} else {
						cmdArgs = append(cmdArgs, string(tmp))
					}
					tmp = []rune{}
					continue
				}
			}
		}
		lastRune = v
		tmp = append(tmp, v)
	}
	if len(tmp) != 0 {
		if fpath == "" {
			fpath = string(tmp)
		} else {
			cmdArgs = append(cmdArgs, string(tmp))
		}
	}
	return fpath, cmdArgs
}