package handler

import (
	"context"
	"database/sql"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"time"
	queries "vctp/db/queries"
	models "vctp/server/models"
)

// VmCreate receives the CloudEvent for a VM creation
func (h *Handler) VmCreate(w http.ResponseWriter, r *http.Request) {
	var unixTimestamp int64

	reqBody, err := io.ReadAll(r.Body)
	if err != nil {
		fmt.Fprintf(w, "Invalid data received")
		w.WriteHeader(http.StatusInternalServerError)
		return
	} else {
		h.Logger.Debug("received input data", "length", len(reqBody))
	}

	// Decode the JSON body into vmModel struct
	var vm models.CloudEventReceived
	//if err := json.NewDecoder(r.Body).Decode(&vm); err != nil {
	if err := json.Unmarshal(reqBody, &vm); err != nil {
		h.Logger.Error("unable to decode json", "error", err)
		http.Error(w, "Invalid JSON body", http.StatusBadRequest)
		return
	}

	// Convert vmModel to CreateInventoryParams using the utility function
	//var params queries.CreateInventoryParams
	//db.ConvertToSQLParams(&vm, &params)

	// Parse the datetime string to a time.Time object
	eventTime, err := time.Parse(time.RFC3339, vm.CloudEvent.Time)
	if err != nil {
		h.Logger.Warn("unable to convert cloud event time to timestamp", "error", err)
		unixTimestamp = time.Now().Unix()
	} else {
		// Convert to Unix timestamp
		unixTimestamp = eventTime.Unix()
	}

	// Create an instance of CreateInventoryParams
	params := queries.CreateInventoryParams{
		Name:         vm.CloudEvent.Data.VM.Name,
		Vcenter:      vm.CloudEvent.Source,
		VmId:         sql.NullString{String: "VirtualMachine-" + vm.CloudEvent.Data.VM.VM.Value, Valid: vm.CloudEvent.Data.VM.VM.Value != ""},
		CreationTime: sql.NullInt64{Int64: unixTimestamp, Valid: unixTimestamp > 0},
	}

	h.Logger.Debug("database params", "vm", vm)

	// Insert the new inventory record into the database
	result, err := h.Database.Queries().CreateInventory(context.Background(), params)
	if err != nil {
		h.Logger.Error("unable to perform database insert", "error", err)
		w.WriteHeader(http.StatusInternalServerError)
		fmt.Fprintf(w, "Error : %v\n", err)
		return
	}

	h.Logger.Debug("received create request", "body", string(reqBody))
	w.WriteHeader(http.StatusOK)
	fmt.Fprintf(w, "Create Request : %v\n", result)
}