package main

import (
	"encoding/json"
	"net/http"
	"testing"
)

// The public price book (#1374): CORS-open pass-through of the provisioner's
// tiers, cached, empty when no provisioner is configured.
func TestPricebookServesTiersCORSOpenAndCached(t *testing.T) {
	tiers := []map[string]any{{"key": "family", "name": "Family", "label": "€5.50 a year"}}
	cloud, _, _ := fakeCloud(t, http.StatusOK, map[string]any{
		"billing": map[string]any{"tiers": tiers},
	})
	ts, s := newTestServer(t)
	s.cloud = newCloudProvisioner(cloud.URL, "caller-token")

	resp, err := http.Get(ts.URL + "/api/pricebook")
	if err != nil {
		t.Fatal(err)
	}
	defer resp.Body.Close()
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("status %d", resp.StatusCode)
	}
	// The caller is a SPACE origin's browser JS — the endpoint must be open.
	if got := resp.Header.Get("Access-Control-Allow-Origin"); got != "*" {
		t.Errorf("Access-Control-Allow-Origin = %q, want *", got)
	}
	var body struct {
		Tiers []map[string]any `json:"tiers"`
	}
	if err := json.NewDecoder(resp.Body).Decode(&body); err != nil {
		t.Fatal(err)
	}
	if len(body.Tiers) != 1 || body.Tiers[0]["key"] != "family" {
		t.Fatalf("tiers = %v, want the fake cloud's family tier", body.Tiers)
	}

	// Cached: kill the upstream; the answer must not change within the TTL.
	cloud.Close()
	resp2, err := http.Get(ts.URL + "/api/pricebook")
	if err != nil {
		t.Fatal(err)
	}
	defer resp2.Body.Close()
	var body2 struct {
		Tiers []map[string]any `json:"tiers"`
	}
	if err := json.NewDecoder(resp2.Body).Decode(&body2); err != nil {
		t.Fatal(err)
	}
	if len(body2.Tiers) != 1 {
		t.Fatalf("cached tiers = %v, want the earlier copy", body2.Tiers)
	}
}

func TestPricebookEmptyWithoutProvisioner(t *testing.T) {
	ts, _ := newTestServer(t)
	resp, err := http.Get(ts.URL + "/api/pricebook")
	if err != nil {
		t.Fatal(err)
	}
	defer resp.Body.Close()
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("status %d", resp.StatusCode)
	}
	var body struct {
		Tiers []map[string]any `json:"tiers"`
	}
	if err := json.NewDecoder(resp.Body).Decode(&body); err != nil {
		t.Fatal(err)
	}
	if len(body.Tiers) != 0 {
		t.Fatalf("tiers = %v, want empty (no provisioner)", body.Tiers)
	}
}