package main

import (
	"bytes"
	"context"

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

// LogoStripMeta is the block metadata for corporate-modernist:logo_strip.
var LogoStripMeta = blocks.BlockMeta{
	Key:         "logo_strip",
	Title:       "Client Logo Strip",
	Description: "Row of client logos, greyscale until hover.",
	Source:      "corporate-modernist",
	Category:    blocks.CategoryContent,
}

// LogoStripItem represents a single logo entry in the strip.
type LogoStripItem struct {
	Src  string
	Alt  string
	Href string
}

// LogoStripData carries the parsed content for the logo_strip block.
type LogoStripData struct {
	Caption string
	Logos   []LogoStripItem
}

// LogoStripBlock renders the logo_strip block.
func LogoStripBlock(ctx context.Context, content map[string]any) string {
	rawLogos := getSlice(content, "logos")
	logos := make([]LogoStripItem, 0, len(rawLogos))
	for _, l := range rawLogos {
		alt := getString(l, "alt")
		src := getString(l, "src")
		href := getString(l, "href")
		// Skip entries with no asset reference and no alt text.
		if src == "" && alt == "" {
			continue
		}
		logos = append(logos, LogoStripItem{Src: src, Alt: alt, Href: href})
	}

	data := LogoStripData{
		Caption: getString(content, "caption"),
		Logos:   logos,
	}

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