town/cmd/signup/main.go

package main

import (
	"bytes"
	"fmt"
	"io"
	"os"
	"strings"

	"github.com/MakeNowJust/heredoc/v2"
	"github.com/gdamore/tcell/v2"
	"github.com/rivo/tview"
)

/*
Assumes:

Match User join
        ForceCommand /town/src/town/cmd/signup/signup
        PubkeyAuthentication no
        KbdInteractiveAuthentication no
        PasswordAuthentication yes
        PermitEmptyPasswords yes
        DisableForwarding yes

in sshd_config, and:

auth [success=done default=ignore] pam_succeed_if.so user ingroup join

in /etc/pam.d/sshd
*/

const maxInputLength int = 4000

type TownApplication struct {
	Email    string
	HowFound string
	Why      string
	Where    string
}

type streams struct {
	In  io.Reader
	Out io.Writer
	Err io.Writer
}

func cli(s *streams) error {
	pages := tview.NewPages()
	mainFlex := tview.NewFlex()
	innerFlex := tview.NewFlex()
	input := tview.NewTextArea()
	input.SetBorder(true).SetBorderColor(tcell.ColorPaleTurquoise)
	input.SetTitle("press ctrl+d to send")
	input.SetMaxLength(2000)

	title := tview.NewTextView()
	title.SetDynamicColors(true)
	title.SetTextAlign(tview.AlignCenter)
	title.SetText("[purple]the tilde town sign up portal[-]")

	msgScroll := tview.NewTextView()
	msgScroll.SetDynamicColors(true)
	msgScroll.SetBackgroundColor(tcell.ColorBlack)
	msgScroll.SetTextColor(tcell.ColorWhite)

	sidebar := tview.NewTextView()
	sidebar.SetBorder(true)
	sidebar.SetDynamicColors(true)
	sidebar.SetBackgroundColor(tcell.ColorBlack)
	sidebar.SetTextColor(tcell.ColorGray)
	sidebar.SetText(heredoc.Doc(`
		[-:-:b]hey here are some hints[-:-:-]

		quit by pressing [-:-:b]ctrl-c[-:-:-]
		(your responses won't be saved)

		type stuff. send it with [-:-:b]ctrl+d[-:-:-]

		try a [-:-:b]verb[-:-:-] using [-:-:b]/[-:-:-] like:

		[-:-:b]/nod[-:-:-]
	`))

	innerFlex.SetDirection(tview.FlexColumn)
	innerFlex.AddItem(msgScroll, 0, 3, false)
	innerFlex.AddItem(sidebar, 0, 1, false)

	mainFlex.SetDirection(tview.FlexRow)
	mainFlex.AddItem(title, 1, -1, false)
	mainFlex.AddItem(innerFlex, 0, 1, false)
	mainFlex.AddItem(input, 5, -1, true)

	pages.AddPage("main", mainFlex, true, true)

	app := tview.NewApplication()
	app.SetRoot(pages, true)

	player := newCharacter("you", "TODO")

	type scene struct {
		Name        string
		Description string
		InBuff      io.ReadWriter
		InLength    int
		Host        *character
	}

	scenes := []*scene{
		{
			Name: "start",
			Description: heredoc.Doc(`
				You open your eyes.

				You're in some kind of workshop. 
				Wires and computers in various state of disrepair are strewn across
				tables and shelves. It smells faintly of burnt cedar.

				The wires and components before you slowly drag 
				themselves into the shape of a small humanoid.

				[-:-:b]wire guy says:[-:-:-]
					hello, welcome to the application for membership in tilde town.
					first, please let me know what a good [-:-:b]email address[-:-:-] is for you?
					just say it out loud. as many times as you need. to get it right.
					when you're ready to move on, [-:-:b]/nod[-:-:-]
			`),
			Host:   newCharacter("wire guy", "a lil homonculus made of discarded computer cables"),
			InBuff: bytes.NewBuffer([]byte{}),
		},
		{
			Name: "nodded",
			Description: heredoc.Doc(`
				The workshop fades away. You hear the sound of a dial up modem 
				in the distance.

				Trees spring up out of the ground around you: birches, oaks, maples,
				firs, yews, pines, cypresses complete with tiny swamps around their trunks,
				junipers, redwoods, cedars, towering palms waving gently in a breeze, eucalyptus, 
				banyan. the smell is riotous like a canvas with all the colors splashed on. birds 
				start to sing.

				a shrike alights on a branch in front of you.

				[-:-:b]the shrike says:[-:-:-]
					phweeturpff. how did you find out about the town? did anyone refer you?

					just say your answer out loud. when you've said what you want, [-:-:b]/lean[-:-:-]
					against a tree.
			`),
			InBuff: bytes.NewBuffer([]byte{}),
			Host:   newCharacter("the shrike", "a little grey bird. it has a pretty song."),
		},
		{
			Name: "leaned",
			Description: heredoc.Doc(`
				You sink backwards into the forest. You find yourself floating in darkness.

				At the far reaches of your vision you can make out a faint neon grid. Around you
				float pieces of consumer electronic appliances from 1980s Earth. A VCR approaches
				you and speaks, flapping its tape slot cover with each word.

				[-:-:b]the vcr says:[-:-:-]
					welcome! thank you for coming this far. just two questions left. what about
					tilde town interests you? what kind of stuff might you want to get up to here?

					as usual, just say your answer. when you're satisfied, please [-:-:b]/spin[-:-:-]
					around in this void.
			`),
			InBuff: bytes.NewBuffer([]byte{}),
			Host:   newCharacter("the vcr", "a black and grey VCR from 1991"),
		},
		{
			Name: "spun",
			Description: heredoc.Doc(`
				You realize your eyes have been shut. You open them and, in an instant,
				the neon grid and polygons are gone. You're in a convenience store. Outside
				it's dark besides a single pool of light coming from a street lamp. it's illuminating
				some litter and a rusty, blue 1994 pontiac grand am.

				The shelves around you are stocked with products you've never heard of before like
				Visible Pants, Petty Burgers, Gentle Rice, Boo Sponge, Power Banjo, Superware, Kneephones,
				and Diet Coagulator. A mop is mopping the floor and turns to you.

				[-:-:b]the mop says:[-:-:-]
					swishy slop. last question. where online can we get to know you? do you have a personal 
					website or social media presence? we'll take whatever.

					say some links and words out loud, you know the drill.

					when you're happy you can submit this whole experience by leaving the
					store. just [-:-:b]/open[-:-:-] the door.
			`),
			InBuff: bytes.NewBuffer([]byte{}),
			Host:   newCharacter("the mop", "a greying mop with a wooden handle."),
		},
		{
			Name: "spun",
			Description: heredoc.Doc(`
				thank you for applying to tilde.town! 

				please be on the look out for an email from [-:-:b]root@tilde.town[-:-:-]

				you can [-:-:b]/quit[-:-:-] now

				ok bye have a good one~
			`),
			InBuff: bytes.NewBuffer([]byte{}),
		},
	}

	sceneIx := 0
	currentScene := scenes[sceneIx]

	advanceScene := func(fromScene, sorryMsg string) {
		if currentScene.Name != fromScene {
			return
		}
		if currentScene.InLength == 0 {
			fmt.Fprintln(msgScroll, currentScene.Host.Say(sorryMsg))
			return
		}
		sceneIx++
		currentScene = scenes[sceneIx]
		fmt.Fprintln(msgScroll, heredoc.Doc(`

			[purple]----------[-:-:-]
			
		`))
		fmt.Fprintln(msgScroll, currentScene.Description)
	}

	handleInput := func(msg string) {
		trimmed := strings.TrimSpace(msg)
		if trimmed == "" {
			return
		}
		if strings.HasPrefix(trimmed, "/") {
			split := strings.Split(trimmed, " ")
			if len(split) > 0 {
				trimmed = split[0]
			}
			switch strings.TrimPrefix(trimmed, "/") {
			case "quit":
				app.Stop()
			case "look":
				fmt.Fprintln(msgScroll, "")
				fmt.Fprintln(msgScroll, currentScene.Description)
			// TODO refactor into a state machine
			case "nod":
				advanceScene("start",
					"i'm sorry, before going further could you share an email with me?")
			case "lean":
				advanceScene("nodded", "phweeturpff")
			case "spin":
				advanceScene("leaned", "hmm did you say something?")
			case "open":
				advanceScene("spun", "just the one last thing please")
			}
			return
		}
		fmt.Fprintln(msgScroll, player.Say(msg))
		fmt.Fprintln(currentScene.InBuff, msg)
		currentScene.InLength += len(msg)
	}

	app.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
		switch event.Key() {
		case tcell.KeyCtrlD:
			handleInput(input.GetText())
			input.SetText("", false)
			return nil
		}

		return event
	})

	app.SetAfterDrawFunc(func(_ tcell.Screen) {
		fmt.Fprintln(msgScroll, currentScene.Description)
		app.SetAfterDrawFunc(nil)
	})

	return app.Run()
}

/*

I need a script for how this interaction should go. It should feel more organic and fluid than just filling out a form. It shouldn't, however, take more than 10 minutes to get through stuff. The end result is to collect:

- an email address
- how a user found out about the town
- if they have a referral from an existing member
- what interests them about the town
- any links to personal websites or social media

A given is that the applicant is interacting with a "host" that guides them through the process. Should there be more than one host?

How many rooms should there be? 1? more?

in terms of data collection, I intend to just save the transcript of their interaction instead of more structured data. The only real structured data are email and referral.

another idea/thought/dream:

the whole point of this is to spatialize a form. it's a form! a set of questions and corresponding textarea elements. but in order to trigger self reflection -- as well as a feeling of being seen by another (in a good way) -- i want to turn the form into a shape. i'm thinking about this like the room in Eclipse Penumbra:

(For the Hollow Head was drug paraphenalia you could walk into. The building itself was the syringe, or the hookah, or the sniff-tube)

so, spatialized, every room is a question. the rooms take shape as a linear script the user moves through by:

1. answering a question
2. executing a verb

and finally at the end, a verb to confirm submission.

*/

type character struct {
	Name        string
	Description string
}

func newCharacter(name, description string) *character {
	return &character{
		Name:        name,
		Description: description,
	}
}

func (c *character) Say(msg string) string {
	verb := "says"
	if c.Name == "you" {
		verb = "say"
	}
	return fmt.Sprintf("[-:-:b]%s[-:-:-] %s: '%s'",
		c.Name,
		verb,
		strings.TrimSpace(msg))
}

func main() {
	s := &streams{
		In:  os.Stdin,
		Out: os.Stdout,
		Err: os.Stderr,
	}
	err := cli(s)
	if err != nil {
		fmt.Fprintln(os.Stderr, err)
		os.Exit(1)
	}
}