package feeds

import (
	"testing"
	"time"
)

func TestPresentFeedLegacyFields(t *testing.T) {
	t.Parallel()
	ts := time.Date(2026, 8, 4, 11, 0, 0, 0, time.UTC)
	got := PresentFeed(map[string]any{
		"id":                    "22222222-2222-2222-2222-222222222222",
		"name":                  "Main catalog",
		"url":                   "https://example.com/feed.xml",
		"feed_type":             "xml",
		"status":                "active",
		"sync_interval_minutes": 60,
		"last_synced_at":        ts,
		"options":               map[string]any{"item_path": "channel/item"},
		"product_count":         int64(12),
		"created_at":            ts,
		"updated_at":            ts,
	})
	if got["item_path"] != "channel/item" {
		t.Fatalf("item_path=%v", got["item_path"])
	}
	if got["is_active"] != true {
		t.Fatalf("is_active=%v", got["is_active"])
	}
	if got["product_count"] != 12 {
		t.Fatalf("product_count=%v", got["product_count"])
	}
	if got["last_synced"] != "2026-08-04T11:00:00Z" {
		t.Fatalf("last_synced=%v", got["last_synced"])
	}
	if got["last_synced_at"] != got["last_synced"] {
		t.Fatalf("dual last_synced_at mismatch")
	}
	if got["feed_type"] != "xml" {
		t.Fatalf("feed_type=%v", got["feed_type"])
	}
	if got["last_data_at"] != got["last_synced_at"] {
		t.Fatalf("last_data_at should prefer live sync: %v", got["last_data_at"])
	}
}

func TestPresentFeedLastDataFromProducts(t *testing.T) {
	t.Parallel()
	ts := time.Date(2026, 8, 4, 11, 0, 0, 0, time.UTC)
	got := PresentFeed(map[string]any{
		"id":                  "1",
		"name":                "Imported",
		"status":              "active",
		"product_count":       int64(50),
		"mapping_field_count": 19,
		"has_mappings":        true,
		"products_updated_at": ts,
		"last_synced_at":      nil,
	})
	if got["last_synced_at"] != nil {
		t.Fatalf("last_synced_at=%v", got["last_synced_at"])
	}
	if got["last_data_at"] != "2026-08-04T11:00:00Z" {
		t.Fatalf("last_data_at=%v", got["last_data_at"])
	}
	if got["mapping_field_count"] != 19 {
		t.Fatalf("mapping_field_count=%v", got["mapping_field_count"])
	}
	if got["has_mappings"] != true {
		t.Fatalf("has_mappings=%v", got["has_mappings"])
	}
	if got["mapping_incomplete"] != false {
		t.Fatalf("mapping_incomplete=%v want false when has_mappings and unset", got["mapping_incomplete"])
	}
	if got["product_count"] != 50 {
		t.Fatalf("product_count=%v", got["product_count"])
	}
}

func TestPresentFeedMappingIncomplete(t *testing.T) {
	t.Parallel()
	got := PresentFeed(map[string]any{
		"id":                  "1",
		"name":                "Mapped incomplete",
		"status":              "mapped",
		"mapping_field_count": 2,
		"has_mappings":        true,
		"mapping_incomplete":  true,
	})
	if got["mapping_incomplete"] != true {
		t.Fatalf("mapping_incomplete=%v", got["mapping_incomplete"])
	}
}

func TestPresentFeedsPreservesMappingIncomplete(t *testing.T) {
	t.Parallel()
	out := PresentFeeds([]map[string]any{
		{
			"id":                  "a",
			"name":                "Incomplete",
			"status":              "mapped",
			"mapping_field_count": 1,
			"has_mappings":        true,
			"mapping_incomplete":  true,
		},
		{
			"id":                  "b",
			"name":                "Complete",
			"status":              "active",
			"mapping_field_count": 3,
			"has_mappings":        true,
			"mapping_incomplete":  false,
		},
	})
	if len(out) != 2 {
		t.Fatalf("len=%d", len(out))
	}
	if out[0]["mapping_incomplete"] != true || out[1]["mapping_incomplete"] != false {
		t.Fatalf("got %#v %#v", out[0]["mapping_incomplete"], out[1]["mapping_incomplete"])
	}
}

func TestPresentFeedEmptyURLAndInactive(t *testing.T) {
	t.Parallel()
	got := PresentFeed(map[string]any{
		"id":         "1",
		"name":       "Draft",
		"url":        "",
		"status":     "unmapped",
		"options":    map[string]any{},
		"created_at": time.Unix(0, 0).UTC(),
		"updated_at": time.Unix(0, 0).UTC(),
	})
	if got["url"] != nil {
		t.Fatalf("url=%v want nil", got["url"])
	}
	if got["is_active"] != false {
		t.Fatalf("is_active=%v", got["is_active"])
	}
	if got["item_path"] != "" {
		t.Fatalf("item_path=%v", got["item_path"])
	}
}