// Command glint is a modeless terminal markdown editor with live styling.
package main

import (
	"flag"
	"fmt"
	"os"

	"glint/internal/app"
	"glint/internal/config"

	tea "github.com/charmbracelet/bubbletea"
)

// version is the build version, overridden at release time via
// -ldflags "-X main.version=<v>" (the Homebrew formula sets it).
var version = "dev"

func main() {
	if a := os.Args[1:]; len(a) > 0 && (a[0] == "version" || a[0] == "--version" || a[0] == "-v") {
		fmt.Println("glint", version)
		return
	}

	cfg, err := config.Load()
	if err != nil {
		fmt.Fprintln(os.Stderr, "glint: config:", err)
	}
	a := app.New(cfg)

	// Subcommands run before flag parsing.
	if args := os.Args[1:]; len(args) > 0 {
		switch args[0] {
		case "new": // `glint new [name]` — blank buffer, or a named note under the inbox
			name := ""
			if len(args) > 1 {
				name = args[1]
			}
			if err := a.StartNew(name); err != nil {
				fmt.Fprintln(os.Stderr, "glint:", err)
				os.Exit(1)
			}
			run(a)
			return
		case "vault": // `glint vault` — open the picker over the configured vault, from anywhere
			if err := a.StartVault(); err != nil {
				fmt.Fprintln(os.Stderr, "glint:", err)
				os.Exit(1)
			}
			run(a)
			return
		}
	}

	daily := flag.Bool("daily", false, "open today's daily note")
	flag.Parse()

	var path string
	if args := flag.Args(); len(args) > 0 {
		path = args[0]
	}
	if err := a.Start(path, *daily); err != nil {
		fmt.Fprintln(os.Stderr, "glint:", err)
		os.Exit(1)
	}
	run(a)
}

// run drives the Bubbletea program in the alternate screen.
func run(a *app.App) {
	if _, err := tea.NewProgram(a, tea.WithAltScreen()).Run(); err != nil {
		fmt.Fprintln(os.Stderr, "glint:", err)
		os.Exit(1)
	}
}