package bitbucket

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

func TestBitbucketGetFileContentSuccess(t *testing.T) {
	const expected = "file content"
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		// Verify path structure
		if r.URL.Path != "/rest/api/1.0/projects/owner/repos/repo/raw/path/to/file.go" {
			t.Fatalf("unexpected URL path: %s", r.URL.Path)
		}
		w.WriteHeader(http.StatusOK)
		w.Write([]byte(expected))
	}))
	defer server.Close()

	// Trim trailing slash handling done in NewBitbucket
	adapter := NewBitbucket(server.URL, "")
	content, err := adapter.GetFileContent(context.Background(), "owner", "repo", "path/to/file.go", "")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if content != expected {
		t.Fatalf("expected %q, got %q", expected, content)
	}
}

func TestBitbucketGetFileContentError(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusNotFound)
		w.Write([]byte("not found"))
	}))
	defer server.Close()

	adapter := NewBitbucket(server.URL, "")
	_, err := adapter.GetFileContent(context.Background(), "owner", "repo", "missing.go", "")
	if err == nil {
		t.Fatalf("expected error for non‑200 response")
	}
}

func TestBitbucketGetPRHeadSHASuccess(t *testing.T) {
	const sha = "deadbeef"
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.URL.Path != "/rest/api/1.0/projects/owner/repos/repo/pull-requests/42" {
			t.Fatalf("unexpected URL: %s", r.URL.Path)
		}
		w.WriteHeader(http.StatusOK)
		w.Write([]byte(`{"toRef":{"latestCommit":"` + sha + `"}}`))
	}))
	defer server.Close()

	adapter := NewBitbucket(server.URL, "")
	got, err := adapter.GetPRHeadSHA(context.Background(), "owner", "repo", 42)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if got != sha {
		t.Fatalf("expected sha %s, got %s", sha, got)
	}
}

func TestBitbucketGetPRHeadSHAError(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusInternalServerError)
		w.Write([]byte("error"))
	}))
	defer server.Close()

	adapter := NewBitbucket(server.URL, "")
	_, err := adapter.GetPRHeadSHA(context.Background(), "owner", "repo", 1)
	if err == nil {
		t.Fatalf("expected error for non‑200 response")
	}
}
