HeatGuard/internal/bettervent/provider_test.go

package bettervent

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

var testDevices = []apiDevice{
	{
		ID: 1, TradeName: "MITSUBISHI ELECTRIC", ModelName: "MSZ-AP25VGK",
		Range: "MSZ-AP series", Pc: 2.5, Ph: 3.2, EER: 4.0, COP: 4.6,
		SEER: 8.7, SEERClass: "A+++", SCOP: 4.6, SCOPClass: "A++",
		TOL: -25, Tbiv: -15, Mounting: "Wall mounted", Refrigerant: "R32",
	},
	{
		ID: 2, TradeName: "DAIKIN", ModelName: "FTXM25R",
		Range: "Perfera", Pc: 2.5, Ph: 3.0, EER: 3.8, COP: 4.5,
		SEER: 8.73, SEERClass: "A+++", SCOP: 5.1, SCOPClass: "A+++",
		TOL: -25, Tbiv: -15, Mounting: "Wall mounted", Refrigerant: "R32",
	},
	{
		ID: 3, TradeName: "MITSUBISHI ELECTRIC", ModelName: "MFZ-KT50VG",
		Range: "Floor standing", Pc: 5.0, Ph: 5.8, EER: 3.5, COP: 4.2,
		SEER: 7.0, SEERClass: "A++", SCOP: 4.3, SCOPClass: "A++",
		TOL: -15, Tbiv: -7, Mounting: "Floor standing", Refrigerant: "R410A",
	},
}

func newTestServer(t *testing.T) *httptest.Server {
	t.Helper()
	return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.URL.Path != "/api/devices" {
			http.NotFound(w, r)
			return
		}
		w.Header().Set("Content-Type", "application/json")
		json.NewEncoder(w).Encode(testDevices)
	}))
}

func TestSearch_MatchesByTradeName(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Close()

	p := NewWithBaseURL(nil, ts.URL)
	resp, err := p.Search(context.Background(), "daikin")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp.Total != 1 {
		t.Fatalf("got %d results, want 1", resp.Total)
	}
	if resp.Devices[0].TradeName != "DAIKIN" {
		t.Errorf("got trade name %q, want DAIKIN", resp.Devices[0].TradeName)
	}
	if resp.Devices[0].CoolingKW != 2.5 {
		t.Errorf("got cooling %v kW, want 2.5", resp.Devices[0].CoolingKW)
	}
}

func TestSearch_MatchesByModelName(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Close()

	p := NewWithBaseURL(nil, ts.URL)
	resp, err := p.Search(context.Background(), "MSZ-AP25")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp.Total != 1 {
		t.Fatalf("got %d results, want 1", resp.Total)
	}
	if resp.Devices[0].ID != 1 {
		t.Errorf("got ID %d, want 1", resp.Devices[0].ID)
	}
}

func TestSearch_MultipleMatches(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Close()

	p := NewWithBaseURL(nil, ts.URL)
	resp, err := p.Search(context.Background(), "mitsubishi")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp.Total != 2 {
		t.Fatalf("got %d results, want 2", resp.Total)
	}
}

func TestSearch_EmptyQuery(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Close()

	p := NewWithBaseURL(nil, ts.URL)
	resp, err := p.Search(context.Background(), "")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp.Total != 0 {
		t.Errorf("got %d results for empty query, want 0", resp.Total)
	}
}

func TestSearch_NoResults(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Close()

	p := NewWithBaseURL(nil, ts.URL)
	resp, err := p.Search(context.Background(), "nonexistent-brand-xyz")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp.Total != 0 {
		t.Errorf("got %d results, want 0", resp.Total)
	}
}

func TestSearch_CacheReuse(t *testing.T) {
	callCount := 0
	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		callCount++
		w.Header().Set("Content-Type", "application/json")
		json.NewEncoder(w).Encode(testDevices)
	}))
	defer ts.Close()

	p := NewWithBaseURL(nil, ts.URL)
	ctx := context.Background()

	_, _ = p.Search(ctx, "daikin")
	_, _ = p.Search(ctx, "mitsubishi")

	if callCount != 1 {
		t.Errorf("expected 1 API call (cached), got %d", callCount)
	}
}

func TestSearch_FieldMapping(t *testing.T) {
	ts := newTestServer(t)
	defer ts.Close()

	p := NewWithBaseURL(nil, ts.URL)
	resp, err := p.Search(context.Background(), "FTXM25R")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if resp.Total != 1 {
		t.Fatalf("got %d results, want 1", resp.Total)
	}

	d := resp.Devices[0]
	if d.SEER != 8.73 {
		t.Errorf("SEER = %v, want 8.73", d.SEER)
	}
	if d.SEERClass != "A+++" {
		t.Errorf("SEERClass = %q, want A+++", d.SEERClass)
	}
	if d.SCOP != 5.1 {
		t.Errorf("SCOP = %v, want 5.1", d.SCOP)
	}
	if d.TOL != -25 {
		t.Errorf("TOL = %v, want -25", d.TOL)
	}
	if d.Tbiv != -15 {
		t.Errorf("Tbiv = %v, want -15", d.Tbiv)
	}
	if d.Refrigerant != "R32" {
		t.Errorf("Refrigerant = %q, want R32", d.Refrigerant)
	}
	if d.Mounting != "Wall mounted" {
		t.Errorf("Mounting = %q, want Wall mounted", d.Mounting)
	}
}