fix prometheus performance issue

});

/**

 * Rough estimate of empty pixels

 * Rough estimate of filled pixels

 */

export const EmptyPixels = new client.Gauge({

  name: "empty_pixels",

  help: "total number of empty pixels",

export const FilledPixels = new client.Gauge({

  name: "filled_pixels",

  help: "total number of filled pixels",

  async collect() {

    let queries: Promise<boolean>[] = [];

    for (let x = 0; x < Canvas.getCanvasConfig().size[0]; x++) {

      for (let y = 0; y < Canvas.getCanvasConfig().size[1]; y++) {

        queries.push(Canvas.isPixelEmpty(x, y));

      }

    }

    let count = 0;

    const allSettled = await Promise.allSettled(queries);

    for (const settle of allSettled) {

      if (settle.status === "fulfilled") {

        count += Number(settle.value);

      } else {

        count++;

      }

    }

    const [width, height] = Canvas.getCanvasConfig().size;

    const filledPixels = await prisma.pixel.findMany({

      where: {

        x: {

          gte: 0,

          lt: width,

        },

        y: {

          gte: 0,

          lt: height,

        },

        isTop: true,

      },

    });

    this.set(count);

    this.set(filledPixels.length);

  },

});