package cmd

import (
	"io"
	"text/template"

	"go.fifitido.net/cmd/opt"
)

func WritePowerShellCompletions(out io.Writer, rootCmd *Command) error {
	return powerShellTpl.Execute(out, map[string]any{
		"RootCmd":    rootCmd,
		"GlobalOpts": opt.Globals(),
	})
}

var powerShellTpl = template.Must(template.New("PowerShell").Funcs(tplFuncs).Parse(`
{{- $rootCmd := .RootCmd -}}
{{- $progName := $rootCmd.Name -}}
{{- $varName := $rootCmd.Name | camel -}}

[scriptblock]$__{{ $varName }}CompleterBlock = {
    param(
        $WordToComplete,
        $CommandAst,
        $CursorPosition
    )
}

Register-ArgumentCompleter -CommandName {{ $progName }} -ScriptBlock $__{{ $varName }}CompleterBlock
`))