package artifact

import (
	"context"
	"io"
	"net/http"
	"net/http/httptest"
	"strings"
	"testing"
)

func TestRepositoryClient_ListRunArtifacts(t *testing.T) {
	t.Parallel()

	var gotPath, gotAuth string
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		gotPath = r.URL.Path
		gotAuth = r.Header.Get("Authorization")
		w.Header().Set("content-type", "application/json")
		_, _ = io.WriteString(w, `{"total_count":1,"artifacts":[{"id":7,"name":"foo","size_in_bytes":10,"expired":false}]}`)
	}))
	defer server.Close()

	c := NewRepositoryClient(server.URL, "secret")
	res, err := c.ListRunArtifacts(context.Background(), "owner", "repo", 42)
	if err != nil {
		t.Fatal(err)
	}

	if got, want := gotPath, "/repos/owner/repo/actions/runs/42/artifacts"; got != want {
		t.Errorf("expected path %q to be %q", got, want)
	}
	if got, want := gotAuth, "Bearer secret"; got != want {
		t.Errorf("expected Authorization %q to be %q", got, want)
	}
	if len(res.Artifacts) != 1 || res.Artifacts[0].Id != 7 || res.Artifacts[0].Name != "foo" {
		t.Errorf("unexpected response: %+v", res)
	}
}

func TestRepositoryClient_ListRunArtifacts_Error(t *testing.T) {
	t.Parallel()

	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("content-type", "application/json")
		http.Error(w, `{"message":"not found"}`, http.StatusNotFound)
	}))
	defer server.Close()

	c := NewRepositoryClient(server.URL, "secret")
	if _, err := c.ListRunArtifacts(context.Background(), "owner", "repo", 42); err == nil {
		t.Fatal("expected error")
	}
}

func TestRepositoryClient_DownloadArtifact(t *testing.T) {
	t.Parallel()

	const zip = "zip-bytes"
	var gotPath string
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		gotPath = r.URL.Path
		_, _ = io.WriteString(w, zip)
	}))
	defer server.Close()

	c := NewRepositoryClient(server.URL, "secret")
	body, err := c.DownloadArtifact(context.Background(), "owner", "repo", 7)
	if err != nil {
		t.Fatal(err)
	}
	defer body.Close()

	if got, want := gotPath, "/repos/owner/repo/actions/artifacts/7/zip"; got != want {
		t.Errorf("expected path %q to be %q", got, want)
	}
	data, err := io.ReadAll(body)
	if err != nil {
		t.Fatal(err)
	}
	if string(data) != zip {
		t.Errorf("expected %q, got %q", zip, data)
	}
}

func TestRepositoryClient_DownloadArtifact_Redirect(t *testing.T) {
	t.Parallel()

	blob := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		_, _ = io.WriteString(w, "redirected-zip")
	}))
	defer blob.Close()

	api := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		http.Redirect(w, r, blob.URL+"/blob", http.StatusFound)
	}))
	defer api.Close()

	c := NewRepositoryClient(api.URL, "secret")
	body, err := c.DownloadArtifact(context.Background(), "owner", "repo", 7)
	if err != nil {
		t.Fatal(err)
	}
	defer body.Close()

	data, err := io.ReadAll(body)
	if err != nil {
		t.Fatal(err)
	}
	if string(data) != "redirected-zip" {
		t.Errorf("expected %q, got %q", "redirected-zip", data)
	}
}

func TestRepositoryClient_DownloadArtifact_Error(t *testing.T) {
	t.Parallel()

	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		http.Error(w, "nope", http.StatusNotFound)
	}))
	defer server.Close()

	c := NewRepositoryClient(server.URL, "secret")
	_, err := c.DownloadArtifact(context.Background(), "owner", "repo", 7)
	if err == nil || !strings.Contains(err.Error(), "download artifact") {
		t.Fatalf("expected download error, got %v", err)
	}
}