package forge

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

	"dappco.re/go/core/forge/types"
)

func TestMiscService_Good_RenderMarkdown(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != http.MethodPost {
			t.Errorf("expected POST, got %s", r.Method)
		}
		if r.URL.Path != "/api/v1/markdown" {
			t.Errorf("wrong path: %s", r.URL.Path)
		}
		var opts types.MarkdownOption
		if err := json.NewDecoder(r.Body).Decode(&opts); err != nil {
			t.Fatal(err)
		}
		if opts.Text != "# Hello" {
			t.Errorf("got text=%q, want %q", opts.Text, "# Hello")
		}
		if opts.Mode != "gfm" {
			t.Errorf("got mode=%q, want %q", opts.Mode, "gfm")
		}
		w.Header().Set("Content-Type", "text/html")
		w.Write([]byte("<h1>Hello</h1>\n"))
	}))
	defer srv.Close()

	f := NewForge(srv.URL, "tok")
	html, err := f.Misc.RenderMarkdown(context.Background(), "# Hello", "gfm")
	if err != nil {
		t.Fatal(err)
	}
	want := "<h1>Hello</h1>\n"
	if html != want {
		t.Errorf("got %q, want %q", html, want)
	}
}

func TestMiscService_Good_GetVersion(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != http.MethodGet {
			t.Errorf("expected GET, got %s", r.Method)
		}
		if r.URL.Path != "/api/v1/version" {
			t.Errorf("wrong path: %s", r.URL.Path)
		}
		json.NewEncoder(w).Encode(types.ServerVersion{
			Version: "1.21.0",
		})
	}))
	defer srv.Close()

	f := NewForge(srv.URL, "tok")
	ver, err := f.Misc.GetVersion(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	if ver.Version != "1.21.0" {
		t.Errorf("got version=%q, want %q", ver.Version, "1.21.0")
	}
}

func TestMiscService_Good_ListLicenses(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != http.MethodGet {
			t.Errorf("expected GET, got %s", r.Method)
		}
		if r.URL.Path != "/api/v1/licenses" {
			t.Errorf("wrong path: %s", r.URL.Path)
		}
		json.NewEncoder(w).Encode([]types.LicensesTemplateListEntry{
			{Key: "mit", Name: "MIT License"},
			{Key: "gpl-3.0", Name: "GNU General Public License v3.0"},
		})
	}))
	defer srv.Close()

	f := NewForge(srv.URL, "tok")
	licenses, err := f.Misc.ListLicenses(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	if len(licenses) != 2 {
		t.Fatalf("got %d licenses, want 2", len(licenses))
	}
	if licenses[0].Key != "mit" {
		t.Errorf("got key=%q, want %q", licenses[0].Key, "mit")
	}
	if licenses[1].Key != "gpl-3.0" {
		t.Errorf("got key=%q, want %q", licenses[1].Key, "gpl-3.0")
	}
}

func TestMiscService_Good_GetLicense(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != http.MethodGet {
			t.Errorf("expected GET, got %s", r.Method)
		}
		if r.URL.Path != "/api/v1/licenses/mit" {
			t.Errorf("wrong path: %s", r.URL.Path)
		}
		json.NewEncoder(w).Encode(types.LicenseTemplateInfo{
			Key:  "mit",
			Name: "MIT License",
			Body: "MIT License body text...",
		})
	}))
	defer srv.Close()

	f := NewForge(srv.URL, "tok")
	lic, err := f.Misc.GetLicense(context.Background(), "mit")
	if err != nil {
		t.Fatal(err)
	}
	if lic.Key != "mit" {
		t.Errorf("got key=%q, want %q", lic.Key, "mit")
	}
	if lic.Name != "MIT License" {
		t.Errorf("got name=%q, want %q", lic.Name, "MIT License")
	}
}

func TestMiscService_Good_ListGitignoreTemplates(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != http.MethodGet {
			t.Errorf("expected GET, got %s", r.Method)
		}
		if r.URL.Path != "/api/v1/gitignore/templates" {
			t.Errorf("wrong path: %s", r.URL.Path)
		}
		json.NewEncoder(w).Encode([]string{"Go", "Python", "Node"})
	}))
	defer srv.Close()

	f := NewForge(srv.URL, "tok")
	names, err := f.Misc.ListGitignoreTemplates(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	if len(names) != 3 {
		t.Fatalf("got %d templates, want 3", len(names))
	}
	if names[0] != "Go" {
		t.Errorf("got [0]=%q, want %q", names[0], "Go")
	}
}

func TestMiscService_Good_GetGitignoreTemplate(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != http.MethodGet {
			t.Errorf("expected GET, got %s", r.Method)
		}
		if r.URL.Path != "/api/v1/gitignore/templates/Go" {
			t.Errorf("wrong path: %s", r.URL.Path)
		}
		json.NewEncoder(w).Encode(types.GitignoreTemplateInfo{
			Name:   "Go",
			Source: "*.exe\n*.test\n/vendor/",
		})
	}))
	defer srv.Close()

	f := NewForge(srv.URL, "tok")
	tmpl, err := f.Misc.GetGitignoreTemplate(context.Background(), "Go")
	if err != nil {
		t.Fatal(err)
	}
	if tmpl.Name != "Go" {
		t.Errorf("got name=%q, want %q", tmpl.Name, "Go")
	}
}

func TestMiscService_Good_GetNodeInfo(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.Method != http.MethodGet {
			t.Errorf("expected GET, got %s", r.Method)
		}
		if r.URL.Path != "/api/v1/nodeinfo" {
			t.Errorf("wrong path: %s", r.URL.Path)
		}
		json.NewEncoder(w).Encode(types.NodeInfo{
			Version: "2.1",
			Software: &types.NodeInfoSoftware{
				Name:    "forgejo",
				Version: "1.21.0",
			},
		})
	}))
	defer srv.Close()

	f := NewForge(srv.URL, "tok")
	info, err := f.Misc.GetNodeInfo(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	if info.Version != "2.1" {
		t.Errorf("got version=%q, want %q", info.Version, "2.1")
	}
	if info.Software.Name != "forgejo" {
		t.Errorf("got software name=%q, want %q", info.Software.Name, "forgejo")
	}
}

func TestMiscService_Bad_NotFound(t *testing.T) {
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusNotFound)
		json.NewEncoder(w).Encode(map[string]string{"message": "not found"})
	}))
	defer srv.Close()

	f := NewForge(srv.URL, "tok")
	_, err := f.Misc.GetLicense(context.Background(), "nonexistent")
	if err == nil {
		t.Fatal("expected error, got nil")
	}
	if !IsNotFound(err) {
		t.Errorf("expected not-found error, got %v", err)
	}
}