package cmd

import (
	"context"
	"encoding/json"
	"flag"
	"fmt"
	"os"

	"skraak/tools"
)

// RunTime handles the "time" subcommand
//
// JSON output schema:
//
//	{
//	  "time": string,     // Current system time in RFC3339 format
//	  "timezone": string, // System timezone
//	  "unix": int         // Unix timestamp in seconds
//	}
func RunTime(args []string) {
	fs := flag.NewFlagSet("time", flag.ExitOnError)

	fs.Usage = func() {
		fmt.Fprintf(os.Stderr, "Usage: skraak time\n\n")
		fmt.Fprintf(os.Stderr, "Get the current system time with timezone information.\n\n")
		fmt.Fprintf(os.Stderr, "Examples:\n")
		fmt.Fprintf(os.Stderr, "  skraak time\n")
		fmt.Fprintf(os.Stderr, "  skraak time | jq '.iso'\n")
	}

	if err := fs.Parse(args); err != nil {
		os.Exit(1)
	}

	// Get current time
	output, err := tools.GetCurrentTime(context.Background(), tools.GetCurrentTimeInput{})
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
		os.Exit(1)
	}

	// Output as JSON
	enc := json.NewEncoder(os.Stdout)
	enc.SetIndent("", "  ")
	if err := enc.Encode(output); err != nil {
		fmt.Fprintf(os.Stderr, "Error encoding output: %v\n", err)
		os.Exit(1)
	}
}