package agentapi

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

func netStub(t *testing.T) (*httptest.Server, string, *struct {
	addBody AddNetStorageRequest
	removed string
}) {
	captured := &struct {
		addBody AddNetStorageRequest
		removed string
	}{}
	mux := http.NewServeMux()
	mux.HandleFunc("POST /netstorage/add", func(w http.ResponseWriter, r *http.Request) {
		_ = decodeJSON(r, &captured.addBody)
		_, _ = w.Write([]byte(`{"ok":true,"data":{"name":"media","protocol":"nfs","where":"/mnt/felhom-drives/media","guest_path":"/mnt/felhom-drives/media","host_uid":101000,"host_gid":101000}}`))
	})
	mux.HandleFunc("GET /netstorage", func(w http.ResponseWriter, r *http.Request) {
		_, _ = w.Write([]byte(`{"ok":true,"data":{"vmid":8200,"network_mounts":[
			{"name":"media","protocol":"nfs","server":"10.0.0.5","export":"/srv/media","where":"/mnt/felhom-drives/media","configured":true,"mounted":true,"reachable":true,"health":"ok"},
			{"name":"photos","protocol":"smb","server":"10.0.0.5","export":"photos","where":"/mnt/felhom-drives/photos","configured":true,"mounted":false,"reachable":true,"health":"idle"},
			{"name":"vids","protocol":"nfs","server":"10.0.0.6","export":"/srv/vids","where":"/mnt/felhom-drives/vids","configured":true,"mounted":true,"reachable":false,"health":"unreachable"}
		]}}`))
	})
	mux.HandleFunc("POST /netstorage/remove", func(w http.ResponseWriter, r *http.Request) {
		var body struct {
			Name string `json:"name"`
		}
		_ = decodeJSON(r, &body)
		captured.removed = body.Name
		_, _ = w.Write([]byte(`{"ok":true,"data":{"name":"` + body.Name + `","removed":true}}`))
	})
	s := httptest.NewTLSServer(mux)
	return s, strings.TrimPrefix(s.URL, "https://"), captured
}

func TestNetStorage_Add_ForwardsCredsAndMapping(t *testing.T) {
	s, ep, cap := netStub(t)
	defer s.Close()
	c := clientFor(t, s, ep)

	res, err := c.AddNetStorage(context.Background(), AddNetStorageRequest{
		Name: "media", Protocol: "smb", Server: "10.0.0.5", Export: "media",
		MappedUID: 1000, MappedGID: 1000, Username: "u", Password: "p",
	})
	if err != nil {
		t.Fatal(err)
	}
	if res.GuestPath != "/mnt/felhom-drives/media" || res.HostUID != 101000 {
		t.Fatalf("add result mismatch: %+v", res)
	}
	// The SMB creds + mapping must be forwarded to the agent verbatim (the agent writes the 0600 file).
	if cap.addBody.Username != "u" || cap.addBody.Password != "p" {
		t.Fatalf("creds not forwarded to the agent: %+v", cap.addBody)
	}
	if cap.addBody.MappedUID != 1000 || cap.addBody.Protocol != "smb" {
		t.Fatalf("mapping/protocol not forwarded: %+v", cap.addBody)
	}
}

func TestNetStorage_List_HealthStates(t *testing.T) {
	s, ep, _ := netStub(t)
	defer s.Close()
	c := clientFor(t, s, ep)

	mounts, err := c.ListNetStorage(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	if len(mounts) != 3 {
		t.Fatalf("want 3 mounts, got %d", len(mounts))
	}
	byName := map[string]NetworkMountStatus{}
	for _, m := range mounts {
		byName[m.Name] = m
	}
	// ok + idle are NOT degraded; only unreachable is.
	if byName["media"].Unreachable() || byName["photos"].Unreachable() {
		t.Fatalf("ok/idle must not be unreachable: %+v", byName)
	}
	if byName["photos"].Health != "idle" {
		t.Fatalf("photos should be idle (benign), got %q", byName["photos"].Health)
	}
	if !byName["vids"].Unreachable() {
		t.Fatalf("vids should be unreachable (degraded), got %q", byName["vids"].Health)
	}
}

func TestNetStorage_Remove(t *testing.T) {
	s, ep, cap := netStub(t)
	defer s.Close()
	c := clientFor(t, s, ep)

	if err := c.RemoveNetStorage(context.Background(), "media"); err != nil {
		t.Fatal(err)
	}
	if cap.removed != "media" {
		t.Fatalf("remove did not forward the name, got %q", cap.removed)
	}
}