Untitled

function generateHomeContent(data) {
    let html = `
        <h2>Benvenuto nella home page</h2>
        <div id="message" class="hidden"></div>
        <br>
        <a href="#" onclick="loadCreateGroup()">Crea un nuovo gruppo</a>
        <br><br>
        <h3>Ecco i gruppi creati da te:</h3>
        <br>
        <table border="1">
            <tr>
                <th>Title</th>
                <th>Creation Date</th>
                <th>Numero minimo di partecipanti raggiunto</th>
            </tr>`;

    if (data.groups && data.groups.length > 0) {
        data.groups.forEach(group => {
            html += `
            <tr>
                <td><a href="#" onclick="loadDetailsPage(${group.groupId})">${group.title}</a></td>
                <td>${group.creationDate}</td>
                <td>${group.status === "active" ? "sì" : "no"}</td>
            </tr>`;
        });
    } else {
        html += `
            <tr>
                <td colspan="3">Nessun gruppo trovato.</td>
            </tr>`;
    }

    html += `
        </table>
        <br><br>
        <h3>Ecco i tuoi inviti:</h3>
        <table border="1">
            <tr>
                <th>Group ID</th>
                <th>Invitation ID</th>
                <th>Invitation Status</th>
                <th>Accetta</th>
                <th>Rifiuta</th>
            </tr>`;

    if (data.invitations && data.invitations.length > 0) {
        data.invitations.forEach(invitation => {
            const acceptFormId = `accept_form_${invitation.invitationId}`;
            const refuseFormId = `refuse_form_${invitation.invitationId}`;
            const acceptInputId = `accept_input_${invitation.invitationId}`;
            const groupInputId = `group_input_${invitation.invitationId}`;
            const refuseInputId = `refuse_input_${invitation.invitationId}`;

            html += `
            <tr>
                <td>${invitation.groupId}</td>
                <td>${invitation.invitationId}</td>
                <td>${invitation.invitationStatus}</td>
                <td>${invitation.invitationStatus === "invited" ? `
                    <form id="${acceptFormId}">
                        <input type="hidden" id="${acceptInputId}" name="acceptInvitationId" value="${invitation.invitationId}"/>
                        <input type="hidden" id="${groupInputId}" name="acceptGroupId" value="${invitation.groupId}"/>
                        <button type="submit" onclick="acceptInvitation(event, '${acceptInputId}', '${groupInputId}'); return false;">Accetta</button>
                    </form>
                ` : ''}</td>
                <td>${invitation.invitationStatus === "invited" ? `
                    <form id="${refuseFormId}">
                        <input type="hidden" id="${refuseInputId}" name="refuseInvitationId" value="${invitation.invitationId}"/>
                        <button type="submit" onclick="refuseInvitation(event, '${refuseInputId}'); return false;">Rifiuta</button>
                    </form>
                ` : ''}</td>
            </tr>`;
        });
    } else {
        html += `
            <tr>
                <td colspan="5">Nessun invito trovato.</td>
            </tr>`;
    }

    html += `
        </table>
        <br><br>
        <a href="logout">Logout</a>`;

    return html;
}



function acceptInvitation(event, acceptInputId, groupInputId) {
    event.preventDefault();
    const formData = {
        acceptInvitationId: document.getElementById(acceptInputId).value,
        acceptGroupId: document.getElementById(groupInputId).value,
    };
    
    const xhr = new XMLHttpRequest();
    xhr.open("POST", "acceptInvitation", true);
    xhr.setRequestHeader("Content-Type", "application/json");
    xhr.onreadystatechange = function() {
        if (xhr.readyState === XMLHttpRequest.DONE) {
            if (xhr.status !== 200) {
                console.error("Server error", xhr.status);
                displayMessage("Errore nell'accettare l'invito", "error");
            } else {
                try {
                    const result = JSON.parse(xhr.responseText);
                    if(result.status === "error") {
                        displayMessage("Errore nell'accettare l'invito", "error");
                    } else {
                        loadHomePage();
                    }
                } catch (error) {
                    console.error("Parsing error", error);
                    displayMessage("Error processing response", "error");
                }
            }
        }
    };
    
    xhr.onerror = function() {
        console.error("Request error", xhr.statusText);
        displayMessage("Network error nell'accettare l'invito", "error");
    };
    
    try {
        xhr.send(JSON.stringify(formData));
    } catch (error) {
        console.error("Send error", error);
        displayMessage("Error sending request", "error");
    }
}



function refuseInvitation(event, refuseInputId) {
    event.preventDefault();
    const formData = {
        refuseInvitationId: document.getElementById(refuseInputId).value,
    };
    
    const xhr = new XMLHttpRequest();
    xhr.open("POST", "refuseInvitation", true);
    xhr.setRequestHeader("Content-Type", "application/json");
    xhr.onreadystatechange = function() {
        if (xhr.readyState === XMLHttpRequest.DONE) {
            if (xhr.status !== 200) {
                console.error("Server error", xhr.status);
                displayMessage("Errore nel rifiutare l'invito", "error");
            } else {
                try {
                    const result = JSON.parse(xhr.responseText);
                    if(result.status === "error") {
                        displayMessage("Errore nel rifiutare l'invito", "error");
                    } else {
                        loadHomePage();
                    }
                } catch (error) {
                    console.error("Parsing error", error);
                    displayMessage("Error processing response", "error");
                }
            }
        }
    };
    
    xhr.onerror = function() {
        console.error("Request error", xhr.statusText);
        displayMessage("Network error nel rifiutare l'invito", "error");
    };
    
    try {
        xhr.send(JSON.stringify(formData));
    } catch (error) {
        console.error("Send error", error);
        displayMessage("Error sending request", "error");
    }
}