package main

import (
	"bytes"
	"context"

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

// FooterMeta is the block metadata for corporate-modernist:footer.
var FooterMeta = blocks.BlockMeta{
	Key:         "footer",
	Title:       "Footer",
	Description: "Multi-column footer with legal line; compact and full variants.",
	Source:      "corporate-modernist",
	Category:    blocks.CategoryNavigation,
}

// FooterLink represents a single link in a footer column.
type FooterLink struct {
	Label string
	Href  string
}

// FooterColumn is a single labelled column of footer links.
type FooterColumn struct {
	Title string
	Links []FooterLink
}

// FooterData carries the parsed content for the footer block.
type FooterData struct {
	Columns   []FooterColumn
	LegalLine string
	ShowLegal bool
	Variant   string
}

// FooterBlock renders the footer block.
func FooterBlock(ctx context.Context, content map[string]any) string {
	rawColumns := getSlice(content, "columns")
	columns := make([]FooterColumn, 0, len(rawColumns))
	for _, c := range rawColumns {
		rawLinks := getSlice(c, "links")
		links := make([]FooterLink, 0, len(rawLinks))
		for _, l := range rawLinks {
			label := linkLabel(l, "")
			href := linkHref(l)
			if label == "" && href == "#" {
				continue
			}
			links = append(links, FooterLink{Label: label, Href: href})
		}
		columns = append(columns, FooterColumn{
			Title: getString(c, "title"),
			Links: links,
		})
	}

	variant := getString(content, "variant")
	if variant == "" {
		variant = "compact"
	}

	data := FooterData{
		Columns:   columns,
		LegalLine: getString(content, "legalLine"),
		ShowLegal: getBool(content, "showLegal", true),
		Variant:   variant,
	}

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