package handler

import (
	"database/sql"
	"errors"
	"fmt"
	"net/http"
)

// VcCleanup removes inventory entries for a vCenter instance.
// @Summary Cleanup vCenter inventory (deprecated)
// @Description Deprecated: Removes all inventory entries associated with a vCenter URL.
// @Tags maintenance
// @Deprecated
// @Produce json
// @Param vc_url query string true "vCenter URL"
// @Success 200 {object} models.StatusMessageResponse "Cleanup completed"
// @Failure 400 {object} models.ErrorResponse "Invalid request"
// @Router /api/cleanup/vcenter [delete]
func (h *Handler) VcCleanup(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodDelete {
		writeJSONError(w, http.StatusMethodNotAllowed, "method not allowed")
		return
	}

	if h.denyLegacyAPI(w, "/api/cleanup/vcenter") {
		return
	}

	ctx, cancel := withRequestTimeout(r, defaultRequestTimeout)
	defer cancel()

	// Get the parameters
	vcUrl := r.URL.Query().Get("vc_url")
	if vcUrl != "" {
		h.Logger.Debug("Checking inventory table for vCenter", "url", vcUrl)
		_, err := h.Database.Queries().GetInventoryVcUrl(ctx, vcUrl)

		if err != nil {
			if errors.Is(err, sql.ErrNoRows) {
				h.Logger.Error("No VMs found for vcenter", "url", vcUrl)
				writeJSONError(w, http.StatusBadRequest, fmt.Sprintf("No match to vcenter details specified. vc_url: '%s'", vcUrl))
				return
			} else {
				h.Logger.Error("Error checking for vcenter to cleanup", "error", err, "url", vcUrl)
				writeJSONError(w, http.StatusBadRequest, fmt.Sprintf("Error checking for vcenter to cleanup. error: '%s'", err))
				return
			}
		} else {
			// delete the VMs
			err = h.Database.Queries().InventoryCleanupVcenter(ctx, vcUrl)
			if err != nil {
				h.Logger.Error("Error cleaning up VMs from Inventory table", "error", err, "url", vcUrl)
				writeJSONError(w, http.StatusBadRequest, fmt.Sprintf("Error cleaning up VMs from Inventory table. error: '%s'", err))
				return
			} else {
				// Successful cleanup
				h.Logger.Debug("VMs successfully removed from inventory for vcenter", "url", vcUrl)
				writeJSONOKMessage(w, fmt.Sprintf("Removed VMs from Inventory table for vcenter '%s'", vcUrl))
				return
			}
		}
	} else {
		h.Logger.Error("Parameters not correctly specified", "url", vcUrl)
		writeJSONError(w, http.StatusBadRequest, fmt.Sprintf("Parameters not correctly specified. vc_url: '%s'", vcUrl))
		return
	}
}