`default_nettype none

module Windows_tb ();

  // Related Paras
  parameter int CLK_PERIOD = 20;
  parameter int DATA_WIDTH = 16;
  parameter int WINDOWS_WIDTH = 5;
  parameter int DATA_LENGTH = 100;
  parameter int DATA_HEIGHT = 100;
  parameter int DATA_FLAMES = 3;

  // Related Ports
  bit clk = 1;
  bit rst = 0;

  logic in_valid = 0;
  logic [DATA_WIDTH - 1:0] in_data = 0;
  logic [7:0] in_user = 0;

  logic out_valid = 0;
  logic [DATA_WIDTH - 1:0] out_data[WINDOWS_WIDTH ** 2] = '{default: 0};
  logic [7:0] out_user = 0;

  logic in_ready = 0;
  logic out_ready = 0;

  // Generate Clk
  always #(CLK_PERIOD / 2) clk = ~clk;

  // Reset Module
  initial begin
    rst = 1;
    #(10 * CLK_PERIOD);
    rst = 0;
  end

  // Send Data
  initial begin
    #(12 * CLK_PERIOD);
    in_ready = 1;

    #(3 * CLK_PERIOD);
    for (int f = 0; f < DATA_FLAMES; ++f) begin
      for (int j = 0; j < DATA_HEIGHT; ++j) begin
        for (int i = 0; i < DATA_LENGTH; ++i) begin
          in_user[1] = (j == 0 && i == 0) ? 1'b1 : 1'b0;
          in_user[0] = (i == 0) ? 1'b1 : 1'b0;
          in_data = j * DATA_LENGTH + i;
          in_valid = 1;
          #CLK_PERIOD;
        end
      end

      in_valid = 0;
      in_user  = 0;
      #(50 * CLK_PERIOD);
    end

    $finish(100 * CLK_PERIOD);
  end

  // Connect to modules
  GSR GSR (.GSRI(1'b1));
  Windows #(
      .DATA_WIDTH      (DATA_WIDTH),
      .WINDOWS_WIDTH   (WINDOWS_WIDTH),
      .WINDOWS_ANCHOR_X(2),
      .WINDOWS_ANCHOR_Y(2)
  ) Windows_inst (
      .clk  (clk),
      .reset(rst),

      .in_valid(in_valid),
      .in_data (in_data),
      .in_user (in_user),

      .out_valid(out_valid),
      .out_data (out_data),
      .out_user (out_user),

      .in_ready (in_ready),
      .out_ready(out_ready)
  );

endmodule