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#include <limits.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "nuklear.h"
#include <nfd.h>

#include "constants.h"
#include "logger.h"
#include "process_url.h"
#include "ui.h"

static nk_size pct;
static nfdchar_t *outPath;

void load_ui(struct ui_struct *ui) {
  static char text[USHRT_MAX], box_buffer[UINT16_MAX], status_string[UCHAR_MAX];
  float logGroup_height =
      nk_window_get_height(ui->ctx) - 80 - 45 - 50 - 35 - 80;
  ui->logger->extend_box =
      (logGroup_height - 15) <
      ((ui->logger->box_lines + 1) * (ui->logger->font_height + 2));

  poll_status(ui->stat);
  if (ui->stat->total) {
    pct = (ui->stat->cur) * 100 / (ui->stat->total);
    sprintf(status_string, "%lu/%lu, %lu%%", ui->stat->cur, ui->stat->total,
            pct);
  }
  if (ui->stat->is_done) {
    (ui->stat->total) = 0; // To prevent nuklear further updating status_string
  }

  nk_layout_row_dynamic(ui->ctx, 80, 1);
  nk_label(ui->ctx, "Hinata", NK_TEXT_CENTERED);

  nk_layout_row_template_begin(ui->ctx, 45);
  nk_layout_row_template_push_static(ui->ctx, 5);
  nk_layout_row_template_push_dynamic(ui->ctx);
  nk_layout_row_template_push_static(ui->ctx, 5);
  nk_layout_row_template_push_static(ui->ctx, 100);
  nk_layout_row_template_push_static(ui->ctx, 5);
  nk_layout_row_template_end(ui->ctx);

  SPACER;
  nk_edit_string_zero_terminated(ui->ctx, NK_EDIT_FIELD | NK_EDIT_AUTO_SELECT,
                                 text, USHRT_MAX - 1, nk_filter_ascii);
  SPACER;
  if (nk_button_label(ui->ctx, "下载")) {
    // Clear logger text
    clear_log();

    nfdresult_t result = NFD_PickFolder(&outPath, "");
    if (result == NFD_OKAY) {
      DEBUG_PRINT("[NFD] outPath: %s\n", outPath);
    } else if (result == NFD_ERROR) {
      LOG("NFD", "Error: %s\n", NFD_GetError());
    }

    if (outPath) {
      append_log("Got URL: %s\n", text);
      add_url(text, outPath, NULL, NULL);
    } else {
      LOG("NFD", "Please specify a valid file PATH to write to!\n");
    }
  }
  SPACER;

  nk_layout_row_dynamic(ui->ctx, 50, 1);
  nk_label(ui->ctx, status_string, NK_TEXT_CENTERED);

  nk_layout_row_template_begin(ui->ctx, 35);
  nk_layout_row_template_push_static(ui->ctx, 5);
  nk_layout_row_template_push_dynamic(ui->ctx);
  nk_layout_row_template_push_static(ui->ctx, 5);
  nk_layout_row_template_end(ui->ctx);
  SPACER;
  if (nk_progress(ui->ctx, &pct, MAX_VALUE, !NK_MODIFIABLE)) {
    // the value of the progress bar changed, the new value is stored in
    // currentValue
  }
  SPACER;

  nk_layout_row_dynamic(ui->ctx, logGroup_height, 1);
  ui->ctx->style.window.group_padding = nk_vec2(0, 0);
  if (nk_group_scrolled_begin(ui->ctx, ui->logger->scrollbar, "LogGroup", 0)) {
    nk_layout_row_dynamic(
        ui->ctx,
        MAX(logGroup_height - 15,
            (ui->logger->box_lines + 1) * (ui->logger->font_height + 2)),
        1);
    nk_edit_buffer(ui->ctx, NK_EDIT_BOX | NK_EDIT_READ_ONLY | NK_EDIT_MULTILINE,
                   ui->logger->text_edit, nk_filter_default);
    nk_group_scrolled_end(ui->ctx);
  }
}