/*
Copyright © 2024 NAME HERE <EMAIL ADDRESS>
*/
package cmd

import (
	"fmt"
	"os"

	"git.andreafazzi.eu/andrea/probo/cmd/filter"

	"bufio"
	"io"
	"strings"

	tea "github.com/charmbracelet/bubbletea"
	"github.com/charmbracelet/lipgloss"
	"github.com/muesli/termenv"
	"github.com/spf13/cobra"
)

// filterCmd represents the filter command
var filterCmd = &cobra.Command{
	Use:   "filter",
	Short: "Create a new filter",
	Long:  "Create a new filter to select quizzes and participants",
	Run:   createFilter,
}

func init() {
	createCmd.AddCommand(filterCmd)

	// Here you will define your flags and configuration settings.

	// Cobra supports Persistent Flags which will work for this command
	// and all subcommands, e.g.:
	// filterCmd.PersistentFlags().String("foo", "", "A help for foo")

	// Cobra supports local flags which will only run when this command
	// is called directly, e.g.:
	filterCmd.Flags().StringP("type", "t", "participants", "Select the type of filter (participants or quizzes)")
}

func createFilter(cmd *cobra.Command, args []string) {
	if len(os.Getenv("DEBUG")) > 0 {
		f, err := tea.LogToFile("debug.log", "debug")
		if err != nil {
			fmt.Println("fatal:", err)
			os.Exit(1)
		}
		defer f.Close()
	}

	var b strings.Builder

	stat, err := os.Stdin.Stat()
	if err != nil {
		panic(err)
	}

	if stat.Mode()&os.ModeNamedPipe != 0 || stat.Size() != 0 {
		reader := bufio.NewReader(os.Stdin)
		for {
			r, _, err := reader.ReadRune()
			if err != nil && err == io.EOF {
				break
			}
			_, err = b.WriteRune(r)
			if err != nil {
				fmt.Println("Error getting input:", err)
				os.Exit(1)
			}
		}
	}

	path, err := cmd.Flags().GetString("input")
	if err != nil {
		panic(err)
	}

	filterType, err := cmd.Flags().GetString("type")
	if err != nil {
		panic(err)
	}

	lipgloss.SetColorProfile(termenv.TrueColor)

	model, err := tea.NewProgram(
		filter.New(path, filterType, strings.TrimSpace(b.String())),
		tea.WithOutput(os.Stderr),
	).Run()
	if err != nil {
		fmt.Println("Error running program:", err)
		os.Exit(1)
	}

	result := model.(*filter.FilterModel)
	if result.FilteredJson != "" {
		fmt.Fprintf(os.Stdout, result.FilteredJson)
	}
}