package gitclient

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

func TestGetBranch(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.URL.Path != "/api/v1/repos/test-owner/test-repo/branches/main" {
			t.Errorf("unexpected path: %s", r.URL.Path)
			http.NotFound(w, r)
			return
		}
		if r.Header.Get("Authorization") != "token test-token" {
			t.Errorf("unexpected auth header: %s", r.Header.Get("Authorization"))
		}
		json.NewEncoder(w).Encode(Branch{Name: "main", Commit: "abc123"})
	}))
	defer server.Close()

	client := NewClient(server.URL, "test-token")
	b, err := client.GetBranch("test-owner", "test-repo", "main")
	if err != nil {
		t.Fatalf("GetBranch: %v", err)
	}
	if b.Name != "main" {
		t.Errorf("Name = %q, want %q", b.Name, "main")
	}
	if b.Commit != "abc123" {
		t.Errorf("Commit = %q, want %q", b.Commit, "abc123")
	}
}

func TestListBranches(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		json.NewEncoder(w).Encode([]Branch{
			{Name: "main", Commit: "abc"},
			{Name: "dev", Commit: "def"},
		})
	}))
	defer server.Close()

	client := NewClient(server.URL, "test-token")
	branches, err := client.ListBranches("owner", "repo")
	if err != nil {
		t.Fatalf("ListBranches: %v", err)
	}
	if len(branches) != 2 {
		t.Errorf("len(branches) = %d, want 2", len(branches))
	}
}

func TestCreateRepository(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != "POST" {
			t.Errorf("unexpected method: %s", r.Method)
		}
		var body map[string]interface{}
		json.NewDecoder(r.Body).Decode(&body)
		if body["name"] != "new-repo" {
			t.Errorf("name = %v, want new-repo", body["name"])
		}
		json.NewEncoder(w).Encode(Repository{Name: "new-repo", FullName: "owner/new-repo"})
	}))
	defer server.Close()

	client := NewClient(server.URL, "test-token")
	repo, err := client.CreateRepository("owner", "new-repo", "test", false)
	if err != nil {
		t.Fatalf("CreateRepository: %v", err)
	}
	if repo.Name != "new-repo" {
		t.Errorf("Name = %q, want %q", repo.Name, "new-repo")
	}
}