let socket;

/* After Document load, change view according to url and connect to ws server */
document.addEventListener("DOMContentLoaded", function () {
  const urlSection = location.href.split("#")[1];
  if (urlSection) {
    changeView(urlSection);
  }
  SFCConnect();

});

/* function to conenct to ws server */
function SFCConnect() {
  // Create WebSocket connection.
  let hostname = location.host;
  if (hostname === "") {
    hostname = "localhost";
  }
  console.log(`Connecting to ws://${hostname}`);

  socket = new WebSocket(`ws://${hostname}/manage/`);
  // Connection opened
  socket.addEventListener("open", (event) => {
    notify("success", "connected!");
    load_module_conf();
  });
  socket.addEventListener("close", (event) => {
    notify("warn", "ws connection failed!. Reconnect in 5s");
    setTimeout(() => {
      SFCConnect();
    }, 5000)

  });

  socket.addEventListener("message", (event) => {
    const data = JSON.parse(event.data)
    console.log(data)

    switch (last_command) {
      case "dm_dump":
        parse_module_conf(data);
        break;
    }
    if (data.ack) {
      notify("success", "command sent!");

    }

  });

}

/* function to send command */
function SFCCommandAsync(data) {
  if (socket && socket.readyState !== WebSocket.CLOSED) {
    last_command = data.command;
    socket.send(JSON.stringify(data));
  } else {
    notify("error", "ws not connected!");
  }
}

/* utility function to format int to hex string */
function toAddressStr(address) {
  const hexbase = address.toString(16).padStart(4, '0').toUpperCase();
  return `0x${hexbase}`;
}

let messageCounter = 0;
function notify(severity, text) {
  const template = document.querySelector("#notification");
  const clone = template.content.cloneNode(true);
  const tbody = document.querySelector("#message_container");

  clone.querySelector("div").classList.add(`notification-${severity}`)
  clone.querySelector("div").querySelector("p").innerHTML = text;
  const messageDivID = `notification-dyn-${messageCounter}`
  clone.querySelector("div").id = messageDivID;
  messageCounter += 1;

  setTimeout(function () {
    //document.querySelector(`#${messageDivID}`).style.transition = "opacity 1s ease";
    document.querySelector(`#${messageDivID}`).style.opacity = 0;
    setTimeout(function () {
      document.querySelector(`#${messageDivID}`).remove();
    }, 1001);
  }, 2000);

  tbody.appendChild(clone);
  document.querySelector(`#${messageDivID}`).style.opacity = 0.7;

}


function btn_display() {
  const text = document.getElementById("form_display_str").value;
  const x = Number(document.getElementById("form_display_x").value);
  const y = Number(document.getElementById("form_display_y").value);
  const mode = document.getElementById("form_display_mode").value;
  console.log(mode)
  const msg = {
    "command": "dm_print",
    "string": text,
    "x": x,
    "y": y,
    "full": mode == "false" ? false : true
  }
  SFCCommandAsync(msg);
}

function btn_clear() {
  const msg = {
    "command": "dm_clear",
  }
  SFCCommandAsync(msg);
}

function btn_reset_module(address) {
  const msg = {
    "command": "dr_reset",
    "address": address
  }
  SFCCommandAsync(msg);
}

function btn_save() {
  const msg = {
    "command": "dm_save",
  }
  SFCCommandAsync(msg);
}

function btn_load() {
  const msg = {
    "command": "dm_load",
  }
  SFCCommandAsync(msg);
}

function changeView(id) {
  document.getElementById('view_display').style.display = 'none';
  document.getElementById('view_conf_modules').style.display = 'none';
  document.getElementById('view_storage').style.display = 'none';
  document.getElementById(id).style.display = 'block';
  switch (id) {
    case 'view_display':
      break;
    case 'view_conf_modules':
      load_module_conf();
      break;
  }
  // append to url
  //location.href = "test"
  const newHref = `${location.href.split("#")[0]}#${id}`;
  location.href = newHref;

  // close menu
  document.getElementById('menu_dropdown').removeAttribute('open');

}

let modules = [];

function load_module_conf() {
  if (socket) {
    document.getElementById('btn_refresh').ariaBusy = 'true';
    document.getElementById('btn_refresh').disabled = true;
    SFCCommandAsync({ "command": "dm_dump" });
  }
}

function parse_module_conf(data) {
  if (data["devices"]) {
    modules = data["devices"];

    const tbody = document.querySelector("#module_list");
    tbody.innerHTML = "";

    for (let i = 0; i < modules.length; i++) {
      const mod = modules[i];
      const template = document.querySelector("#module_list_template");

      const clone = template.content.cloneNode(true);
      let summary = clone.querySelector("summary");
      summary.textContent = `Module ${mod["id"]} : ${mod["status"]["device"]} | Addr: ${toAddressStr(mod["address"])} , Pos: (${mod["position"]["x"]}, ${mod["position"]["y"]})`;
      switch (mod["status"]["device"]) {
        case 'ONLINE':
          summary.classList.add("pico-color-jade-500");
          break
        case 'OFFLINE':
          summary.classList.add("pico-color-red-500");
          break;
      }
      // fill table
      let td = clone.querySelectorAll("td");
      td[0].textContent = mod["id"];
      td[2].textContent = `${mod["address"]} (${toAddressStr(mod["address"])})`;
      td[4].textContent = `${mod["calibration"]} (${toAddressStr(mod["calibration"])})`;
      td[6].textContent = mod["status"]["device"];
      td[8].textContent = mod["status"]["rotations"];
      td[10].textContent = `${mod["position"]["x"]}, ${mod["position"]["y"]}`;
      td[12].textContent = mod["status"]["power"];
      td[14].textContent = `${Math.round((mod["status"]["voltage"]) * 100) / 100} V`;
      td[16].textContent = `id: ${mod["flapID"]}, char: '${mod["flapChar"]}'`;

      // prepare flags
      let flags = [];
      Object.keys(mod["status"]["flags"]).forEach(flag => {
        if (mod["status"]["flags"][flag]) {
          flags.push(flag);
        }
      });
      if (flags.length > 0) {
        td[18].textContent = flags.join(", ");
      }
      clone.querySelector(".btn_reset").onclick = function () {
        btn_reset_module(mod["address"]);
      };
      clone.querySelector(".btn_remove").onclick = function () {
        const msg = {
          "command": "dm_remove",
          "id": mod["id"],
        }
        SFCCommandAsync(msg);
        setTimeout(function () {
          load_module_conf();
        }, 200);
      };
      td[13].querySelector("input").checked = mod["status"]["power"];

      // define set calibration button
      td[5].querySelector("button").onclick = function () {
        const dialog = document.getElementById("dialog_change_calibration");
        dialog.showModal();
        const dialog_el = dialog.querySelector("article").querySelector("section").querySelector("footer");

        dialog_el.querySelector(".btn_confirm").onclick = function () {
          const msg = {
            "command": "dr_setcalibration",
            "address": mod["address"],
            "calibration": Number(dialog.querySelector("#form_change_calibration_data").value)
          }
          SFCCommandAsync(msg);
          setTimeout(function () {
            btn_reset_module(mod["address"]);
            load_module_conf();
          }, 200);
          dialog.close();
        };
        dialog_el.querySelector(".btn_cancel").onclick = function () {
          dialog.close();
        }
      };
      // define power button
      td[13].querySelector("input").onclick = function () {
        const msg = {
          "command": "dr_power",
          "address": mod["address"],
          "power": td[13].querySelector("input").checked
        }
        SFCCommandAsync(msg);
        setTimeout(function () {
          load_module_conf();
        }, 200);
      }


      tbody.appendChild(clone);
      document.getElementById('btn_refresh').ariaBusy = 'false';
      document.getElementById('btn_refresh').disabled = false;

    }

  }
  console.log(modules);
}

function display_dialog_change_address() {
  const dialog = document.getElementById("change_address");
  dialog.showModal();
  const dialog_el = dialog.querySelector("article").querySelector("section").querySelector("footer");
  const addr_old = Number(dialog.querySelector("#form_change_address_old").value);
  const addr_new = Number(dialog.querySelector("#form_change_address_new").value);

  dialog_el.querySelector(".btn_confirm").onclick = function () {
    const msg = {
      "command": "dr_setaddress",
      "address": addr_old,
      "newaddress": addr_new,
    }
    SFCCommandAsync(msg);
    setTimeout(function () {
      btn_reset_module(addr_old);
      load_module_conf();
    }, 200);
    dialog.close();
  };
  dialog_el.querySelector(".btn_cancel").onclick = function () {
    dialog.close();
  }
}

function display_dialog_add_device() {
  const dialog = document.getElementById("dialog_add_device");
  dialog.showModal();
  const dialog_el = dialog.querySelector("article").querySelector("section").querySelector("footer");

  dialog_el.querySelector(".btn_confirm").onclick = function () {
    const msg = {
      "command": "dm_register",
      "address": Number(dialog.querySelector("#form_add_device_addr").value),
      "x": Number(dialog.querySelector("#form_add_device_x").value),
      "y": Number(dialog.querySelector("#form_add_device_y").value)
    }
    SFCCommandAsync(msg);
    setTimeout(function () {
      load_module_conf();
    }, 200);
    dialog.close();
  };
  dialog_el.querySelector(".btn_cancel").onclick = function () {
    dialog.close();
  }
}