package api

import (
	"net/http"
	"strconv"
	"time"

	"browser.local/platform/domain"
	"browser.local/platform/dto"
	"browser.local/platform/repo"
)

func (h *coreHandlers) serverGameClientBridgeStatus(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		writeMethodNotAllowed(w, http.MethodGet)
		return
	}
	status, err := h.core.GetGameClientBridgeStatusForSession(bearerToken(r), r.PathValue("id"))
	if err != nil {
		writeServiceError(w, err)
		return
	}
	writeJSON(w, http.StatusOK, dto.GameClientBridgeStatusFromDomain(status))
}

func (h *coreHandlers) serverGameClientBridgeCommands(w http.ResponseWriter, r *http.Request) {
	switch r.Method {
	case http.MethodGet:
		commands, err := h.core.ListGameClientBridgeCommandsForSession(bearerToken(r), domain.GameClientBridgeCommandFilter{ServerInstanceID: r.PathValue("id"), ProfileKey: r.URL.Query().Get("profileKey"), State: domain.GameClientBridgeCommandState(r.URL.Query().Get("state")), CommandType: r.URL.Query().Get("commandType")})
		if err != nil {
			writeServiceError(w, err)
			return
		}
		writeJSON(w, http.StatusOK, dto.GameClientBridgeCommandsFromDomain(commands))
	case http.MethodPost:
		request, err := decodeJSON[dto.GameClientBridgeQueueRequest](r)
		if err != nil {
			writeDecodeError(w, err)
			return
		}
		instance, err := h.core.GetServerInstanceForSession(bearerToken(r), r.PathValue("id"))
		if err != nil {
			writeServiceError(w, err)
			return
		}
		command, err := h.core.QueueGameClientBridgeCommandForSession(bearerToken(r), request.ToDomain(instance.ID, instance.PluginID))
		if err != nil {
			writeServiceError(w, err)
			return
		}
		writeJSON(w, http.StatusAccepted, dto.GameClientBridgeCommandFromDomain(command))
	default:
		w.Header().Set("Allow", http.MethodGet+", "+http.MethodPost)
		writeAPIError(w, http.StatusMethodNotAllowed, errorCodeMethodNotAllowed, "method not allowed", nil)
	}
}

func (h *coreHandlers) serverGameClientBridgeCommandDetail(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		writeMethodNotAllowed(w, http.MethodGet)
		return
	}
	command, err := h.core.GetGameClientBridgeCommandForSession(bearerToken(r), r.PathValue("commandId"))
	if err != nil {
		writeServiceError(w, err)
		return
	}
	if command.ServerInstanceID != r.PathValue("id") {
		writeServiceError(w, repo.ErrNotFound)
		return
	}
	writeJSON(w, http.StatusOK, dto.GameClientBridgeCommandFromDomain(command))
}

func (h *coreHandlers) serverGameClientBridgeCommandCancel(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		writeMethodNotAllowed(w, http.MethodPost)
		return
	}
	request, err := decodeJSON[dto.GameClientBridgeCancelRequest](r)
	if err != nil {
		writeDecodeError(w, err)
		return
	}
	command, err := h.core.GetGameClientBridgeCommandForSession(bearerToken(r), r.PathValue("commandId"))
	if err != nil {
		writeServiceError(w, err)
		return
	}
	if command.ServerInstanceID != r.PathValue("id") {
		writeServiceError(w, repo.ErrNotFound)
		return
	}
	cancelled, err := h.core.CancelGameClientBridgeCommandForSession(bearerToken(r), request.ToDomain(command.ID))
	if err != nil {
		writeServiceError(w, err)
		return
	}
	writeJSON(w, http.StatusOK, dto.GameClientBridgeCancelFromDomain(cancelled))
}

func (h *coreHandlers) serverGameClientBridgeSnapshots(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		writeMethodNotAllowed(w, http.MethodGet)
		return
	}
	instance, err := h.core.GetServerInstanceForSession(bearerToken(r), r.PathValue("id"))
	if err != nil {
		writeServiceError(w, err)
		return
	}
	limit, err := optionalPositiveInt(r.URL.Query().Get("limit"))
	if err != nil {
		writeAPIError(w, http.StatusBadRequest, errorCodeBadRequest, "invalid snapshot limit", nil)
		return
	}
	var observedAfter time.Time
	if value := r.URL.Query().Get("observedAfter"); value != "" {
		observedAfter, err = time.Parse(time.RFC3339Nano, value)
		if err != nil {
			writeAPIError(w, http.StatusBadRequest, errorCodeBadRequest, "invalid observedAfter timestamp", nil)
			return
		}
	}
	query := dto.GameClientBridgeSnapshotQuery{ProfileKey: r.URL.Query().Get("profileKey"), Type: r.URL.Query().Get("type"), StreamKey: r.URL.Query().Get("streamKey"), ObservedAfter: observedAfter, Limit: limit}
	snapshots, err := h.core.QueryGameClientBridgeSnapshotsForSession(bearerToken(r), query.ToDomain(instance.ID, instance.PluginID))
	if err != nil {
		writeServiceError(w, err)
		return
	}
	writeJSON(w, http.StatusOK, dto.GameClientBridgeSnapshotsFromDomain(snapshots))
}

func optionalPositiveInt(value string) (int, error) {
	if value == "" {
		return 0, nil
	}
	return strconv.Atoi(value)
}