modified: web/blueprints/group_admin.py

modified:   web/blueprints/site_admin.py
	modified:   web/roles.py
	modified:   web/templates/admin/group_members.html

web/blueprints/site_admin.py

@@ -3,7 +3,9 @@ MCLogger – Site-Admin-Bereich
 Verwaltet alle Gruppen und Nutzer global.
 """
 from functools import wraps
+from datetime import datetime, timedelta
 from flask import Blueprint, render_template, request, redirect, url_for, session, flash
+from config import Config
 from mailer import send_mail
 import panel_db as db
 from roles import GROUP_MANAGEMENT_ROLES, GROUP_ROLE_OPTIONS, GROUP_ROLE_SET, role_label
@@ -187,11 +189,13 @@ def group_delete(group_id):
 def group_members(group_id):
     group   = db.get_group_by_id(group_id)
     members = db.get_group_members(group_id)
+    pending_invites = db.list_active_group_invites(group_id)
     all_users = db.list_all_users()
     member_ids = {m["id"] for m in members}
     non_members = [u for u in all_users if u["id"] not in member_ids]
     return render_template("admin/group_members.html",
         group=group, members=members, non_members=non_members,
+        pending_invites=pending_invites,
         role_options=GROUP_ROLE_OPTIONS,
         role_label=role_label,
         management_roles=GROUP_MANAGEMENT_ROLES)
@@ -235,6 +239,112 @@ def group_member_set_role(group_id, user_id):
     return redirect(url_for("site_admin.group_members", group_id=group_id))
 
 
+@site_admin.route("/groups/<int:group_id>/members/invite", methods=["POST"])
+@admin_required
+def group_member_invite(group_id):
+    group = db.get_group_by_id(group_id)
+    if not group:
+        flash("Group not found.", "danger")
+        return redirect(url_for("site_admin.groups"))
+
+    username = request.form.get("username", "").strip()
+    email    = request.form.get("email", "").strip()
+    role     = request.form.get("role", "viewer")
+
+    if not username or not email:
+        flash("Username and email are required.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    if "@" not in email:
+        flash("Please provide a valid email address.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    if role not in GROUP_ROLE_SET:
+        flash("Invalid role selected.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    if db.count_active_group_invites(group_id) >= Config.INVITE_MAX_ACTIVE_PER_GROUP:
+        flash("Active invite limit reached for this group.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    if db.get_user_by_username(username):
+        flash("Username already exists.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    if db.get_active_invite_by_username(group_id, username):
+        flash("There is already an active invitation for this username.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    if db.get_user_by_email(email):
+        flash("Email address is already in use.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    if db.get_active_invite_by_email(group_id, email):
+        flash("There is already an active invitation for this email.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+
+    token      = db.create_group_invite(group_id, username, email, role, session["user_id"])
+    invite     = db.get_invite_by_token(token)
+    invite_url = url_for("auth.accept_invite", token=token, _external=True)
+    mail_settings = db.get_site_mail_settings()
+
+    if mail_settings:
+        subject   = f"Invitation to join {group['name']}"
+        text_body = (
+            f"Hello {username},\n\n"
+            f"You have been invited to join the group '{group['name']}' on MCLogger as {role_label(role)}.\n"
+            f"Open this link to create your account:\n\n{invite_url}\n\n"
+            f"This invite expires in {Config.INVITE_EXPIRY_HOURS} hours.\n"
+        )
+        try:
+            send_mail(mail_settings, email, subject, text_body)
+            if invite:
+                db.mark_group_invite_sent(invite["id"], group_id)
+            flash(f"Invitation email sent to '{email}'.", "success")
+        except Exception:
+            flash(f"Invitation created, but email delivery failed. Share this link manually: {invite_url}", "warning")
+    else:
+        flash(f"Invitation created for '{username}'. Share this link: {invite_url}", "success")
+    return redirect(url_for("site_admin.group_members", group_id=group_id))
+
+
+@site_admin.route("/groups/<int:group_id>/invites/<int:invite_id>/revoke", methods=["POST"])
+@admin_required
+def group_invite_revoke(group_id, invite_id):
+    db.revoke_group_invite(invite_id, group_id)
+    flash("Invitation revoked.", "success")
+    return redirect(url_for("site_admin.group_members", group_id=group_id))
+
+
+@site_admin.route("/groups/<int:group_id>/invites/<int:invite_id>/resend", methods=["POST"])
+@admin_required
+def group_invite_resend(group_id, invite_id):
+    group  = db.get_group_by_id(group_id)
+    invite = db.get_group_invite_by_id(invite_id, group_id)
+    if not invite:
+        flash("Invitation not found.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    if invite.get("accepted_at") or invite.get("revoked_at") or invite["expires_at"] <= datetime.utcnow():
+        flash("Invitation is no longer active.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    last_sent = invite.get("last_sent_at")
+    if last_sent and (datetime.utcnow() - last_sent) < timedelta(seconds=Config.INVITE_RESEND_COOLDOWN_SECONDS):
+        flash("Please wait before resending this invite again.", "warning")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    mail_settings = db.get_site_mail_settings()
+    if not mail_settings:
+        flash("No SMTP settings configured.", "danger")
+        return redirect(url_for("site_admin.group_members", group_id=group_id))
+    invite_url = url_for("auth.accept_invite", token=invite["token"], _external=True)
+    subject    = f"Invitation to join {group['name']}"
+    text_body  = (
+        f"Hello {invite['invited_username']},\n\n"
+        f"You have been invited to join the group '{group['name']}' on MCLogger as {role_label(invite['role'])}.\n"
+        f"Open this link to create your account:\n\n{invite_url}\n\n"
+        f"This invite expires on {invite['expires_at']}.\n"
+    )
+    try:
+        send_mail(mail_settings, invite["invited_email"], subject, text_body)
+        db.mark_group_invite_sent(invite_id, group_id)
+        flash("Invitation email resent.", "success")
+    except Exception:
+        flash("Resend failed. Please verify SMTP settings and try again.", "danger")
+    return redirect(url_for("site_admin.group_members", group_id=group_id))
+
+
 # ──────────────────────────────────────────────────────────────
 # Nutzer verwalten
 # ──────────────────────────────────────────────────────────────