package main

import (
	"bytes"
	"context"

	"git.dev.alexdunmow.com/block/core/blocks"
)

// FooterBlockMeta defines metadata for the TTY footer block.
var FooterBlockMeta = blocks.BlockMeta{
	Key:         "footer",
	Title:       "TTY Footer",
	Description: "EOF rule, MOTD, optional newsletter signup",
	Source:      "terminal",
	Category:    blocks.CategoryLayout,
}

// FooterLink is a single footer link.
type FooterLink struct {
	Label string
	URL   string
}

// FooterData is the parsed content for the footer block.
type FooterData struct {
	Motd       string
	Links      []FooterLink
	ShowSignup bool
}

// FooterBlock renders the TTY footer.
// Content shape: {motd, links[{label, url}], showSignup}.
func FooterBlock(ctx context.Context, content map[string]any) string {
	links := getSlice(content, "links")
	footerLinks := make([]FooterLink, 0, len(links))
	for _, l := range links {
		footerLinks = append(footerLinks, FooterLink{
			Label: getString(l, "label"),
			URL:   getString(l, "url"),
		})
	}
	// showSignup tolerates bool, string "true", or select "true"/"false".
	signup := getBool(content, "showSignup")
	if !signup {
		if s := getString(content, "showSignup"); s == "true" {
			signup = true
		}
	}
	data := FooterData{
		Motd:       getStringDefault(content, "motd", "connection closed."),
		Links:      footerLinks,
		ShowSignup: signup,
	}

	var buf bytes.Buffer
	_ = footerComponent(data).Render(ctx, &buf)
	return buf.String()
}