package main

import (
	"bytes"
	"context"

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

// ImpactMetricsBlockMeta defines metadata for the impact metrics block.
var ImpactMetricsBlockMeta = blocks.BlockMeta{
	Key:         "impact_metrics",
	Title:       "Impact Metrics",
	Description: "Numerical impact metrics with optional botanical illustration",
	Source:      "earthen",
	Category:    blocks.CategoryContent,
}

// ImpactMetricsBlock renders a row of impact metrics.
// Content shape: {title, metrics:[{value,label,suffix}], illustration}
func ImpactMetricsBlock(ctx context.Context, content map[string]any) string {
	rawMetrics := getSlice(content, "metrics")

	items := make([]ImpactMetric, 0, len(rawMetrics))
	for _, m := range rawMetrics {
		items = append(items, ImpactMetric{
			Value:  getString(m, "value"),
			Label:  getString(m, "label"),
			Suffix: getString(m, "suffix"),
		})
	}

	data := ImpactMetricsData{
		Title:        getString(content, "title"),
		Illustration: getString(content, "illustration"),
		Metrics:      items,
		Empty:        len(content) == 0,
	}

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

// ImpactMetricsData contains data for the impact metrics component.
type ImpactMetricsData struct {
	Title        string
	Illustration string
	Metrics      []ImpactMetric
	Empty        bool
}

// ImpactMetric is one numerical metric tile.
type ImpactMetric struct {
	Value  string
	Label  string
	Suffix string
}