{{ define "add_clan" }}


<div class="modal fade" data-bs-backdrop="static" data-bs-keyboard="false" id="addClanModal" tabindex="-1">
    <div class="modal-dialog modal-dialog-centered">
        <div class="modal-content">
            <div class="modal-header">
                <h1 class="modal-title fs-3 text-success fw-bold" id="addClanModalLabel">Clan hinzufügen</h1>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <div class="form-floating mb-3">
                    <input type="text" class="form-control form-control-lg pb-1" id="clanName" placeholder="Clan-Name" minlength="2" maxlength="30" required>
                    <label for="clanName">Clan-Name</label>
                </div>
                <div class="form-floating">
                    <input type="text" class="form-control form-control-lg pb-1" id="clanTag" placeholder="Clan-Tag" minlength="2" maxlength="30" required>
                    <label for="clanTag">Clan-Tag</label>
                </div>
                <div class="form-check form-check-inline mt-3 fs-5">
                    <input class="form-check-input" type="checkbox" id="keepUpdated" value="keepUpdated">
                    <label class="form-check-label" for="keepUpdated">Immer aktuell halten</label>
                </div>
                <div class="error-message text-danger fs-5 badge" style="display: none;"></div>
            </div>
            <div class="modal-footer">
                <button type="submit" name="submit" class="btn btn-lg btn-primary">Hinzufügen</button>
                <button type="button" class="btn btn-lg btn-secondary" data-bs-dismiss="modal">Abbrechen</button>
            </div>
        </div>
    </div>
</div>

<script lang="javascript">
    document.addEventListener('DOMContentLoaded', function() {
        const addClanModal = document.getElementById('addClanModal');
        const addClanModalBS = new bootstrap.Modal('#addClanModal');
        const submitButton = addClanModal.querySelector('button[name="submit"]');
        let submitClanHandler = null;

        const clanName = addClanModal.querySelector('#clanName');
        const clanTag = addClanModal.querySelector('#clanTag');
        const keepUpdated = addClanModal.querySelector('#keepUpdated');
        const errorDiv = addClanModal.querySelector('.error-message');

        function validateInputs() {
            if (clanName.value.length < 2 || clanName.value.length > 30) {
                clanName.classList.add('is-invalid');
                return false;
            } else {
                clanName.classList.remove('is-invalid');
            }

            if (clanTag.value.length < 2 || clanTag.value.length > 30) {
                clanTag.classList.add('is-invalid');
                return false;
            } else {
                clanTag.classList.remove('is-invalid');
            }

            return true;
        }

        function updateClanLists(clanList, otherClanList) {
            fetch('/clans_html')
                .then(response => {
                    if (!response.ok) {
                        console.error('Response was not ok');
                    }
                    return response.text();
                })
                .then(data => {
                    const lastIndex = otherClanList.selectedIndex;

                    clanList.innerHTML = data;
                    otherClanList.innerHTML = data;

                    clanList.selectedIndex = clanList.children.length - 1;
                    otherClanList.selectedIndex = lastIndex;

                    clanList.dispatchEvent(new Event('change'));
                })
                .catch((error) => {
                    alert('Fehler beim Aktualisieren der Clan-List: ' + error.message);
                });
        }

        function createSubmitClanHandler(modalEvent) {
            return function submitClanHandler(_) {
                const [clanList, otherClanList] = getClanLists(modalEvent);

                if (!validateInputs()) {
                    return;
                }

                fetch("/clan", {
                    method: "POST",
                    body: JSON.stringify({
                        name: clanName.value,
                        tag: clanTag.value,
                        keep_updated: keepUpdated.checked
                    }),
                    headers: {
                        "Content-type": "application/json; charset=UTF-8"
                    }
                })
                    .then(response => {
                        if (!response.ok) {
                            if (response.status === 400) {
                                throw new Error('Clan oder Tag existiert bereits!');
                            }
                            throw new Error('Server error');
                        }
                    })
                    .then(() => {
                        updateClanLists(clanList, otherClanList);

                        addClanModalBS.hide();
                    })
                    .catch((error) => {
                        errorDiv.innerText = error.message;
                        errorDiv.style.display = 'block';
                    });
            }
        }

        if (addClanModal) {
            addClanModal.addEventListener('shown.bs.modal', event => {
                submitClanHandler = createSubmitClanHandler(event);
                submitButton.addEventListener('click', submitClanHandler);
            });

            addClanModal.addEventListener('keypress', event => {
                if (event.key === 'Enter') {
                    submitButton.click();
                }
            });

            addClanModal.addEventListener('hidden.bs.modal', _ => {
                submitButton.removeEventListener('click', submitClanHandler);

                clanName.value = "";
                clanTag.value = "";
                errorDiv.innerText = "";
                errorDiv.style.display = 'none';
                keepUpdated.checked = false;
                clanName.classList.remove('is-invalid');
                clanTag.classList.remove('is-invalid');
            });
        }
    });
</script>

{{ end }}