function toggleAvatarSelect() {
  var avatarSelect = document.getElementById("avatarSelect");
  if (avatarSelect.classList.contains("is-open")) {
    avatarSelect.classList.remove("is-open");
  } else {
    avatarSelect.classList.add("is-open");
  }
}

function closeAvatarSelect() {
  var avatarSelect = document.getElementById("avatarSelect");
  avatarSelect.classList.remove("is-open");
}

function changeAvatar(number) {
  document.getElementById("avatarImg").src = "images/avatars/" + number + ".svg";
  document.getElementById("avatarUser").value = number;
  closeAvatarSelect();
}

function addMemberButton(memberId) {
  document.getElementById("addMember").disabled = true;
  const url = 'endpoints/household/household.php?action=add';
  fetch(url)
  .then(response => {
    if (!response.ok) {
      throw new Error('Network response was not ok');
      showErrorMessage("Failed to add member");
    }
    return response.json();
  })
  .then(responseData => {
    if(responseData.success) {
      const newMemberId = responseData.householdId;;
      let container = document.getElementById("householdMembers");
      let div = document.createElement("div");
      div.className = "form-group-inline";
      div.dataset.memberid = newMemberId;

      let input = document.createElement("input");
      input.type = "text";
      input.placeholder = "Member";
      input.name = "member";
      input.value = "Member";

      let editLink = document.createElement("button");
      editLink.className = "image-button medium"
      editLink.name = "save";
      editLink.onclick = function() {
        editMember(newMemberId);
      };

      let editImage = document.createElement("img");
      editImage.src = "images/siteicons/save.png";
      editImage.title = "Save Member";

      editLink.appendChild(editImage);

      let deleteLink = document.createElement("button");
      deleteLink.className = "image-button medium"
      deleteLink.name = "delete";
      deleteLink.onclick = function() {
        removeMember(newMemberId);
      };

      let deleteImage = document.createElement("img");
      deleteImage.src = "images/siteicons/delete.png";
      deleteImage.title = "Delete Member";

      deleteLink.appendChild(deleteImage);

      div.appendChild(input);
      div.appendChild(editLink);
      div.appendChild(deleteLink);

      container.appendChild(div);
    } else {
      showErrorMessage(responseData.errorMessage);
    }
    document.getElementById("addMember").disabled = false;
  })
  .catch(error => {
    showErrorMessage("Failed to add member");
    document.getElementById("addMember").disabled = false;
  });

}

function removeMember(memberId) {
  let url = `endpoints/household/household.php?action=delete&memberId=${memberId}`;
  fetch(url)
    .then(response => {
      if (!response.ok) {
        throw new Error('Network response was not ok');
      }
      return response.json();
    })
    .then(responseData => {
     if (responseData.success) {
      let divToRemove = document.querySelector(`[data-memberid="${memberId}"]`);
      if (divToRemove) {
        divToRemove.parentNode.removeChild(divToRemove);
      }
      showSuccessMessage("Member removed");
     } else {
      showErrorMessage(responseData.errorMessage || "Failed to remove member");
     }
    })
    .catch(error => {
      showErrorMessage("Failed to remove member");
    });
}

function editMember(memberId) {
  var saveButton = document.querySelector(`div[data-memberid="${memberId}"] button[name="save"]`);
  var inputElement = document.querySelector(`div[data-memberid="${memberId}"] input[name="member"]`);
  saveButton.classList.add("disabled");
  saveButton.disabled = true;
  if (inputElement) {
    var memberName = encodeURIComponent(inputElement.value);
    var url = `endpoints/household/household.php?action=edit&memberId=${memberId}&name=${memberName}`;

    fetch(url)
      .then(response => {
        saveButton.classList.remove("disabled");
        if (!response.ok) {
          showErrorMessage("Failed to save member");
        }
        return response.json();
      })
      .then(responseData => {
        if (responseData.success) {
          showSuccessMessage("Member saved");
        } else {
          showErrorMessage(responseData.errorMessage || "Failed to save member");
        }
      })
      .catch(error => {
        showErrorMessage("Failed to save member");
      });
  }
}

function addCategoryButton(categoryId) {
  document.getElementById("addCategory").disabled = true;
  const url = 'endpoints/categories/category.php?action=add';
  fetch(url)
  .then(response => {
    if (!response.ok) {
      throw new Error('Network response was not ok');
      showErrorMessage("Failed to add category");
    }
    return response.json();
  })
  .then(responseData => {
    if(responseData.success) {
      const newCategoryId = responseData.categoryId;;
      let container = document.getElementById("categories");
      let div = document.createElement("div");
      div.className = "form-group-inline";
      div.dataset.categoryid = newCategoryId;

      let input = document.createElement("input");
      input.type = "text";
      input.placeholder = "Category";
      input.name = "category";
      input.value = "Category";

      let editLink = document.createElement("button");
      editLink.className = "image-button medium"
      editLink.name = "save";
      editLink.onclick = function() {
        editCategory(newCategoryId);
      };

      let editImage = document.createElement("img");
      editImage.src = "images/siteicons/save.png";
      editImage.title = "Save Category";

      editLink.appendChild(editImage);

      let deleteLink = document.createElement("button");
      deleteLink.className = "image-button medium"
      deleteLink.name = "delete";
      deleteLink.onclick = function() {
        removeCategory(newCategoryId);
      };

      let deleteImage = document.createElement("img");
      deleteImage.src = "images/siteicons/delete.png";
      deleteImage.title = "Delete Category";

      deleteLink.appendChild(deleteImage);

      div.appendChild(input);
      div.appendChild(editLink);
      div.appendChild(deleteLink);

      container.appendChild(div);
    } else {
      showErrorMessage(responseData.errorMessage);
    }
    document.getElementById("addCategory").disabled = false;
  })
  .catch(error => {
    showErrorMessage("Failed to add category");
    document.getElementById("addCategory").disabled = false;
  });

}

function removeCategory(categoryId) {
  let url = `endpoints/categories/category.php?action=delete&categoryId=${categoryId}`;
  fetch(url)
    .then(response => {
      if (!response.ok) {
        throw new Error('Network response was not ok');
      }
      return response.json();
    })
    .then(responseData => {
     if (responseData.success) {
      let divToRemove = document.querySelector(`[data-categoryid="${categoryId}"]`);
      if (divToRemove) {
        divToRemove.parentNode.removeChild(divToRemove);
      }
      showSuccessMessage("Category removed");
     } else {
      showErrorMessage(responseData.errorMessage || "Failed to remove category");
     }
    })
    .catch(error => {
      showErrorMessage("Failed to remove category");
    });
}

function editCategory(categoryId) {
  var saveButton = document.querySelector(`div[data-categoryid="${categoryId}"] button[name="save"]`);
  var inputElement = document.querySelector(`div[data-categoryid="${categoryId}"] input[name="category"]`);
  saveButton.classList.add("disabled");
  saveButton.disabled = true;
  if (inputElement) {
    var categoryName = encodeURIComponent(inputElement.value);
    var url = `endpoints/categories/category.php?action=edit&categoryId=${categoryId}&name=${categoryName}`;

    fetch(url)
      .then(response => {
        saveButton.classList.remove("disabled");
        if (!response.ok) {
          showErrorMessage("Failed to save category");
        }
        return response.json();
      })
      .then(responseData => {
        if (responseData.success) {
          showSuccessMessage("Category saved");
        } else {
          showErrorMessage(responseData.errorMessage || "Failed to save category");
        }
      })
      .catch(error => {
        showErrorMessage("Failed to save category");
      });
  }
}

function addCurrencyButton(currencyId) {
  document.getElementById("addCurrency").disabled = true;
  const url = 'endpoints/currency/currency.php?action=add';
  fetch(url)
  .then(response => {
    if (!response.ok) {
      throw new Error('Network response was not ok');
      showErrorMessage(response.text());
    }
    return response.text();
  })
  .then(responseText => {
    if(responseText !== "Error") {
      const newCurrencyId = responseText;
      let container = document.getElementById("currencies");
      let div = document.createElement("div");
      div.className = "form-group-inline";
      div.dataset.currencyid = newCurrencyId;

      let inputSymbol = document.createElement("input");
      inputSymbol.type = "text";
      inputSymbol.placeholder = "$";
      inputSymbol.name = "symbol";
      inputSymbol.value = "$";
      inputSymbol.classList.add("short");

      let inputName = document.createElement("input");
      inputName.type = "text";
      inputName.placeholder = "Currency";
      inputName.name = "currency";
      inputName.value = "Currency";

      let inputCode = document.createElement("input");
      inputCode.type = "text";
      inputCode.placeholder = "Currency Code";
      inputCode.name = "code";
      inputCode.value = "CODE";

      let editLink = document.createElement("button");
      editLink.className = "image-button medium"
      editLink.name = "save";
      editLink.onclick = function() {
        editCurrency(newCurrencyId);
      };

      let editImage = document.createElement("img");
      editImage.src = "images/siteicons/save.png";
      editImage.title = "Save Currency";

      editLink.appendChild(editImage);

      let deleteLink = document.createElement("button");
      deleteLink.className = "image-button medium"
      deleteLink.name = "delete";
      deleteLink.onclick = function() {
        removeCurrency(newCurrencyId);
      };

      let deleteImage = document.createElement("img");
      deleteImage.src = "images/siteicons/delete.png";
      deleteImage.title = "Delete Currency";

      deleteLink.appendChild(deleteImage);

      div.appendChild(inputSymbol);
      div.appendChild(inputName);
      div.appendChild(inputCode);
      div.appendChild(editLink);
      div.appendChild(deleteLink);

      container.appendChild(div);
    } else {
      // TODO: Show error
    }
    document.getElementById("addCurrency").disabled = false;
  })
  .catch(error => {
    // TODO: Show error
    document.getElementById("addCurrency").disabled = false;
  });

}

function removeCurrency(currencyId) {
  let url = `endpoints/currency/currency.php?action=delete&currencyId=${currencyId}`;
  fetch(url)
  .then(response => {
    if (!response.ok) {
      throw new Error("There was an error removing the currency");
    }
    return response.json();
  })
  .then(data => {
    if (data.success) {
      showSuccessMessage("Currency removed");
      let divToRemove = document.querySelector(`[data-currencyid="${currencyId}"]`);
      if (divToRemove) {
        divToRemove.parentNode.removeChild(divToRemove);
      }
    } else {
      showErrorMessage(data.message || "Failed to remove currency");
    }
  })
  .catch(error => {
    showErrorMessage(error.message || "There was an error removing the currency");
  });
}

function editCurrency(currencyId) {
  var saveButton = document.querySelector(`div[data-currencyid="${currencyId}"] button[name="save"]`);
  var inputSymbolElement = document.querySelector(`div[data-currencyid="${currencyId}"] input[name="symbol"]`);
  var inputNameElement = document.querySelector(`div[data-currencyid="${currencyId}"] input[name="currency"]`);
  var inputCodeElement = document.querySelector(`div[data-currencyid="${currencyId}"] input[name="code"]`);
  saveButton.classList.add("disabled");
  saveButton.disabled = true;
  if (inputNameElement) {
    var currencyName = encodeURIComponent(inputNameElement.value);
    var currencySymbol = encodeURIComponent(inputSymbolElement.value);
    var currencyCode = encodeURIComponent(inputCodeElement.value);
    var url = `endpoints/currency/currency.php?action=edit&currencyId=${currencyId}&name=${currencyName}&symbol=${currencySymbol}&code=${currencyCode}`;

    fetch(url)
      .then(response => {
        if (!response.ok) {
          throw new Error("There was an error saving the currency");
        }
        return response.json();
      })
      .then(data => {
        if (data.success) {
          saveButton.classList.remove("disabled");
          saveButton.disabled = false;
          showSuccessMessage(currencyName + " was saved");
        } else {
          saveButton.classList.remove("disabled");
          saveButton.disabled = false;
          showErrorMessage(data.message || "Failed to save currency");
        }
      })
      .catch(error => {
        saveButton.classList.remove("disabled");
        saveButton.disabled = false;
        showErrorMessage(error.message || "There was an error saving the currency");
      });
  }
}

function togglePayment(paymentId) {
    const element = document.querySelector(`div[data-paymentid="${paymentId}"]`);

    if (element.dataset.inUse === 'yes') {
      return showErrorMessage('Can\'t delete used payment method');
    }

    const newEnabledState = element.dataset.enabled === '1' ? '0' : '1';
    const paymentMethodName = element.querySelector('.payment-name').innerText;

    const url = `endpoints/payments/payment.php?action=toggle&paymentId=${paymentId}&enabled=${newEnabledState}`;

    fetch(url).then(response => {
        if (!response.ok) {
          throw new Error("There was an error saving the payments method");
        }
        return response.json();
    }).then(data => {
        if (data.success) {
            element.dataset.enabled = newEnabledState;
            showSuccessMessage(`${paymentMethodName} was saved`);
        } else {
            showErrorMessage(data.message || "Failed to save payments method");
        }
    }).catch(error => {
        showErrorMessage(error.message || "There was an error saving the payments method");
    });
}

document.addEventListener('DOMContentLoaded', function() {
    
    document.getElementById("userForm").addEventListener("submit", function(event) {
        event.preventDefault();
        document.getElementById("userSubmit").disabled = true;
        const formData = new FormData(event.target);
        fetch("endpoints/user/save_user.php", {
          method: "POST",
          body: formData
        })
        .then(response => response.json())
        .then(data => {
          if (data.success) {
            var newAvatar = document.getElementById("avatarUser").value;
            document.getElementById("avatar").src = "images/avatars/" + newAvatar + ".svg";
            var newUsername = document.getElementById("username").value;
            document.getElementById("user").textContent = newUsername;
            showSuccessMessage("User details saved");
          } else {
            showErrorMessage(data.errorMessage);
          }
          document.getElementById("userSubmit").disabled = false;
        })
        .catch(error => {
          showErrorMessage("Unknown error, please try again");
        });
      });        

});

function addFixerKeyButton() {
  document.getElementById("addFixerKey").disabled = true;
  const apiKeyInput = document.querySelector("#fixerKey");
  apiKey = apiKeyInput.value.trim();
  fetch("endpoints/currency/fixer_api_key.php", {
    method: "POST",
    headers: {
        "Content-Type": "application/x-www-form-urlencoded",
    },
    body: `api_key=${encodeURIComponent(apiKey)}`,
  })
  .then(response => response.json())
  .then(data => {
      if (data.success) {
          showSuccessMessage("API key saved successfully");
          document.getElementById("addFixerKey").disabled = false;
      } else {
          showErrorMessage(data.message);
          document.getElementById("addFixerKey").disabled = false;
      }
  })
  .catch(error => {
    showErrorMessage(error);
    document.getElementById("addFixerKey").disabled = false;
  });
}

function saveNotificationsButton() {
  const button = document.getElementById("saveNotifications");
  button.disabled = true;

  const enabled = document.getElementById("notifications").checked ? 1 : 0;
  const days = document.getElementById("days").value;
  const smtpAddress = document.getElementById("smtpaddress").value;
  const smtpPort = document.getElementById("smtpport").value;
  const smtpUsername = document.getElementById("smtpusername").value;
  const smtpPassword = document.getElementById("smtppassword").value;

  const data = {
    enabled: enabled,
    days: days,
    smtpaddress: smtpAddress,
    smtpport: smtpPort,
    smtpusername: smtpUsername,
    smtppassword: smtpPassword
  };

  fetch('/endpoints/notifications/save.php', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json'
    },
    body: JSON.stringify(data)
  })
  .then(response => response.json())
  .then(data => {
      if (data.success) {
          showSuccessMessage("Notification settings saved successfully.");
      } else {
          showErrorMessage(data.errorMessage);
      }
      button.disabled = false;
  })
  .catch(error => {
      showErrorMessage("Error saving notification data");
      button.disabled = false;
  });
}

function testNotificationButton()  {
  const button = document.getElementById("testNotifications");
  button.disabled = true;

  const smtpAddress = document.getElementById("smtpaddress").value;
  const smtpPort = document.getElementById("smtpport").value;
  const smtpUsername = document.getElementById("smtpusername").value;
  const smtpPassword = document.getElementById("smtppassword").value;

  const data = {
    smtpaddress: smtpAddress,
    smtpport: smtpPort,
    smtpusername: smtpUsername,
    smtppassword: smtpPassword
  };

  fetch('/endpoints/notifications/sendtestmail.php', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json'
    },
    body: JSON.stringify(data)
  })
  .then(response => response.json())
  .then(data => {
      if (data.success) {
          showSuccessMessage("Notification sent successfully.");
      } else {
          showErrorMessage(data.errorMessage);
      }
      button.disabled = false;
  })
  .catch(error => {
      showErrorMessage("Error sending notification");
      button.disabled = false;
  });
}

function switchTheme() {
  const darkThemeCss = document.querySelector("#dark-theme");
  darkThemeCss.disabled = !darkThemeCss.disabled;

  const themeChoice = darkThemeCss.disabled ? 'light' : 'dark';
  document.cookie = `theme=${themeChoice}; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/`;
}

function setShowMonthlyPriceCookie() {
  const showMonthlyPriceCheckbox = document.querySelector("#monthlyprice");
  const value = showMonthlyPriceCheckbox.checked;
  document.cookie = `showMonthlyPrice=${value}; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/`;
}

function setConvertCurrencyCookie() {
  const convertCurrencyCheckbox = document.querySelector("#convertcurrency");
  const value = convertCurrencyCheckbox.checked;
  document.cookie = `convertCurrency=${value}; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/`;
}

function setRemoveBackgroundCookie() {
  const removeBackgroundCheckbox = document.querySelector("#removebackground");
  const value = removeBackgroundCheckbox.checked;
  document.cookie = `removeBackground=${value}; expires=Fri, 31 Dec 9999 23:59:59 GMT; path=/`;
}