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package main

import (
	"fmt"
	"os"

	_ "modernc.org/sqlite"
)

func main() {
	if len(os.Args) < 2 {
		printUsage()
		os.Exit(1)
	}

	var err error
	switch os.Args[1] {
	case "pack":
		err = cmdPack(os.Args[2:])
	case "start":
		err = cmdStart(os.Args[2:])
	case "stop":
		err = cmdStop(os.Args[2:])
	case "run":
		err = cmdRun(os.Args[2:])
	case "hello":
		err = cmdHello(os.Args[2:])
	case "info":
		err = cmdInfo(os.Args[2:])
	case "config":
		err = cmdConfig(os.Args[2:])
	case "export":
		err = cmdExport(os.Args[2:])
	case "fs-serve":
		err = cmdFSServe(os.Args[2:])
	case "serve-ask":
		err = cmdServeAsk(os.Args[2:])
	case "-h", "--help", "help":
		printUsage()
	default:
		fmt.Fprintf(os.Stderr, "hosty: unknown subcommand %q\n\n", os.Args[1])
		printUsage()
		os.Exit(1)
	}

	if err != nil {
		fmt.Fprintf(os.Stderr, "hosty %s: %v\n", os.Args[1], err)
		os.Exit(1)
	}
}

func printUsage() {
	fmt.Print(`hosty — self-contained self-hosted web services distributed as SQLite databases.

Each .hosty file is a SQLite database containing the app's code (as a
compressed SQLite image) and all its data in one place. Drag it to a new
machine, run it, done.

To get started with the built-in example app:

  hosty pack -name hosty-hello -version 0.1 \
    -map $(which hosty):usr/bin/hosty \
    -ExecStart "/usr/bin/hosty hello run-v1" \
    -config "GREETING:Greeting message:optional,default=Hello from hosty!"
  hosty start -file hosty-hello.hosty
  curl http://localhost:$(hosty info -name hosty-hello | grep port | awk '{print $2}')/

Usage: hosty <subcommand> [options]

Subcommands:
  pack      Build a .hosty file from binaries and config declarations
  start     Install and start a hosty service under the user systemd daemon
  stop      Stop and uninstall a hosty service
  run       Start a hosty service, tail its logs, and clean up on exit
  info      Show installed hosty apps (all, or detail for one with -name)
  config    View and set app configuration values
  export    Export a portable .hosty file from installed app state
  hello     Example hosty app with guided walkthrough and DB migration demo
  fs-serve  Mount the _hosty_fs FUSE filesystem (used by companion unit)
  serve-ask On-demand TLS permission endpoint for Caddy (used by the reverse proxy)

Run 'hosty <subcommand> -h' for subcommand help.
`)
}