login changes

.env.example

@@ -0,0 +1,19 @@
+# Skopíruj tento súbor ako .env a vyplň hodnoty
+# cp .env.example .env
+
+# Databáza
+DB_SERVER=192.168.1.68
+DB_PORT=3306
+DB_NAME=calendarreminder
+DB_USER=
+DB_PASSWORD=
+
+# JWT — minimálne 32 znakov, náhodný reťazec
+JWT_SECRET=
+
+# Email SMTP
+EMAIL_HOST=smtp.gmail.com
+EMAIL_PORT=587
+EMAIL_USER=
+EMAIL_PASS=
+EMAIL_SSL=false

.gitignore

@@ -361,3 +361,8 @@ MigrationBackup/
 
 # Fody - auto-generated XML schema
 FodyWeavers.xsd
+# Secrets — NIKDY do gitu!
+.env
+
+# Local dev settings (obsahuju heslá)
+appsettings.Development.json

CalendarReminder.Api/Controllers/AuthController.cs

@@ -13,20 +13,21 @@ public class AuthController : ControllerBase
 {
     private readonly AppDbContext _db;
     private readonly TokenService _tokenService;
+    private readonly EmailService _emailService;
 
-    public AuthController(AppDbContext db, TokenService tokenService)
+    public AuthController(AppDbContext db, TokenService tokenService, EmailService emailService)
     {
         _db = db;
         _tokenService = tokenService;
+        _emailService = emailService;
     }
 
-    // POST api/auth/register
+    // POST api/auth/register  (interný endpoint — nie je vystavený vo frontende)
     [HttpPost("register")]
     public async Task<IActionResult> Register(RegisterRequest req)
     {
         if (await _db.Users.AnyAsync(u => u.Email == req.Email))
             return BadRequest("Email je už registrovaný.");
-
         if (await _db.Users.AnyAsync(u => u.Username == req.Username))
             return BadRequest("Používateľské meno je obsadené.");
 
@@ -36,7 +37,6 @@ public class AuthController : ControllerBase
             Email    = req.Email,
             PasswordHash = BCrypt.Net.BCrypt.HashPassword(req.Password)
         };
-
         _db.Users.Add(user);
         await _db.SaveChangesAsync();
 
@@ -48,11 +48,90 @@ public class AuthController : ControllerBase
     [HttpPost("login")]
     public async Task<IActionResult> Login(LoginRequest req)
     {
-        var user = await _db.Users.FirstOrDefaultAsync(u => u.Email == req.Email);
+        // Podpor prihlásenie cez email aj username
+        var user = await _db.Users.FirstOrDefaultAsync(u =>
+            u.Email == req.Email || u.Username == req.Email);
+
         if (user is null || !BCrypt.Net.BCrypt.Verify(req.Password, user.PasswordHash))
-            return Unauthorized("Nesprávny email alebo heslo.");
+            return Unauthorized("Nesprávny email/meno alebo heslo.");
 
         var token = _tokenService.GenerateToken(user);
         return Ok(new AuthResponse(token, user.Username, user.Email));
     }
+
+    // POST api/auth/send-reset-code
+    // Vygeneruje 8-znakový kód a odošle ho emailom (pre budúce použitie)
+    [HttpPost("send-reset-code")]
+    public async Task<IActionResult> SendResetCode([FromBody] SendResetCodeRequest req)
+    {
+        var user = await _db.Users.FirstOrDefaultAsync(u => u.Email == req.Email);
+        if (user is null)
+            return BadRequest("Email neexistuje.");
+
+        // Zneplatni staré tokeny
+        var old = _db.PasswordResetTokens.Where(t => t.Email == req.Email && !t.Used);
+        _db.PasswordResetTokens.RemoveRange(old);
+
+        // Vygeneruj nový 8-znakový kód
+        const string chars = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789";
+        var rng  = new Random();
+        var code = new string(Enumerable.Range(0, 8).Select(_ => chars[rng.Next(chars.Length)]).ToArray());
+
+        _db.PasswordResetTokens.Add(new PasswordResetToken
+        {
+            Email     = req.Email,
+            Code      = code,
+            ExpiresAt = DateTime.UtcNow.AddMinutes(30),
+            Used      = false
+        });
+        await _db.SaveChangesAsync();
+
+        await _emailService.SendAsync(req.Email, user.Username,
+            "🔑 Obnova hesla — Calendar Reminder",
+            $"""
+            <div style="font-family:Segoe UI,sans-serif;max-width:480px;margin:auto;background:#161b22;color:#e1e4e8;border-radius:10px;overflow:hidden">
+              <div style="background:#1f6feb;padding:1.2rem 1.5rem">
+                <h2 style="margin:0;color:#fff;font-size:1.1rem">🔑 Obnova hesla</h2>
+              </div>
+              <div style="padding:1.5rem">
+                <p style="margin:0 0 1rem">Tvoj kód na obnovu hesla:</p>
+                <div style="background:#0d1117;border:1px solid #30363d;border-radius:8px;padding:1rem;text-align:center;font-size:2rem;font-weight:700;letter-spacing:0.4rem;color:#58a6ff">{code}</div>
+                <p style="margin:1rem 0 0;color:#8b949e;font-size:0.85rem">Kód je platný 30 minút. Ak si o reset nepožiadal, ignoruj tento email.</p>
+              </div>
+            </div>
+            """);
+
+        return Ok("Kód bol odoslaný na email.");
+    }
+
+    // POST api/auth/reset-password
+    [HttpPost("reset-password")]
+    public async Task<IActionResult> ResetPassword([FromBody] ResetPasswordRequest req)
+    {
+        var user = await _db.Users.FirstOrDefaultAsync(u => u.Email == req.Email);
+        if (user is null)
+            return BadRequest("Email neexistuje.");
+
+        // Ak je kód zadaný — over ho
+        if (!string.IsNullOrEmpty(req.Code))
+        {
+            var resetToken = await _db.PasswordResetTokens
+                .Where(t => t.Email == req.Email && !t.Used && t.ExpiresAt > DateTime.UtcNow)
+                .OrderByDescending(t => t.ExpiresAt)
+                .FirstOrDefaultAsync();
+
+            if (resetToken is null || resetToken.Code != req.Code.ToUpper())
+                return BadRequest("Nesprávny alebo expirovaný kód.");
+
+            resetToken.Used = true;
+        }
+
+        user.PasswordHash = BCrypt.Net.BCrypt.HashPassword(req.NewPassword);
+        await _db.SaveChangesAsync();
+
+        return Ok("Heslo bolo úspešne zmenené.");
+    }
 }
+
+public record SendResetCodeRequest(string Email);
+public record ResetPasswordRequest(string Email, string NewPassword, string? Code);

CalendarReminder.Api/Data/AppDbContext.cs

@@ -10,6 +10,7 @@ public class AppDbContext : DbContext
     public DbSet<Reminder> Reminders => Set<Reminder>();
     public DbSet<User> Users => Set<User>();
     public DbSet<ReminderShare> ReminderShares => Set<ReminderShare>();
+    public DbSet<PasswordResetToken> PasswordResetTokens => Set<PasswordResetToken>();
 
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {

CalendarReminder.Api/Migrations/20260610183536_AddPasswordResetTokens.Designer.cs

@@ -0,0 +1,196 @@
+// <auto-generated />
+using System;
+using CalendarReminder.Api.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace CalendarReminder.Api.Migrations
+{
+    [DbContext(typeof(AppDbContext))]
+    [Migration("20260610183536_AddPasswordResetTokens")]
+    partial class AddPasswordResetTokens
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.0")
+                .HasAnnotation("Relational:MaxIdentifierLength", 64);
+
+            MySqlModelBuilderExtensions.AutoIncrementColumns(modelBuilder);
+
+            modelBuilder.Entity("CalendarReminder.Domain.Entities.PasswordResetToken", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    MySqlPropertyBuilderExtensions.UseMySqlIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Code")
+                        .IsRequired()
+                        .HasColumnType("longtext");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("longtext");
+
+                    b.Property<DateTime>("ExpiresAt")
+                        .HasColumnType("datetime(6)");
+
+                    b.Property<bool>("Used")
+                        .HasColumnType("tinyint(1)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("PasswordResetTokens");
+                });
+
+            modelBuilder.Entity("CalendarReminder.Domain.Entities.Reminder", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    MySqlPropertyBuilderExtensions.UseMySqlIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime(6)");
+
+                    b.Property<string>("Description")
+                        .HasMaxLength(1000)
+                        .HasColumnType("varchar(1000)");
+
+                    b.Property<bool>("IsCompleted")
+                        .HasColumnType("tinyint(1)");
+
+                    b.Property<bool>("NotificationSent")
+                        .HasColumnType("tinyint(1)");
+
+                    b.Property<DateTime>("ReminderDate")
+                        .HasColumnType("datetime(6)");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("varchar(200)");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Reminders");
+                });
+
+            modelBuilder.Entity("CalendarReminder.Domain.Entities.ReminderShare", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    MySqlPropertyBuilderExtensions.UseMySqlIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ReminderId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("SharedWithUserId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SharedWithUserId");
+
+                    b.HasIndex("ReminderId", "SharedWithUserId")
+                        .IsUnique();
+
+                    b.ToTable("ReminderShares");
+                });
+
+            modelBuilder.Entity("CalendarReminder.Domain.Entities.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    MySqlPropertyBuilderExtensions.UseMySqlIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime(6)");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasMaxLength(200)
+                        .HasColumnType("varchar(200)");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("longtext");
+
+                    b.Property<string>("Username")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("varchar(100)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("Email")
+                        .IsUnique();
+
+                    b.HasIndex("Username")
+                        .IsUnique();
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("CalendarReminder.Domain.Entities.Reminder", b =>
+                {
+                    b.HasOne("CalendarReminder.Domain.Entities.User", "User")
+                        .WithMany("Reminders")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("CalendarReminder.Domain.Entities.ReminderShare", b =>
+                {
+                    b.HasOne("CalendarReminder.Domain.Entities.Reminder", "Reminder")
+                        .WithMany("Shares")
+                        .HasForeignKey("ReminderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("CalendarReminder.Domain.Entities.User", "SharedWithUser")
+                        .WithMany()
+                        .HasForeignKey("SharedWithUserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Reminder");
+
+                    b.Navigation("SharedWithUser");
+                });
+
+            modelBuilder.Entity("CalendarReminder.Domain.Entities.Reminder", b =>
+                {
+                    b.Navigation("Shares");
+                });
+
+            modelBuilder.Entity("CalendarReminder.Domain.Entities.User", b =>
+                {
+                    b.Navigation("Reminders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

CalendarReminder.Api/Migrations/20260610183536_AddPasswordResetTokens.cs

@@ -0,0 +1,42 @@
+using System;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace CalendarReminder.Api.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddPasswordResetTokens : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "PasswordResetTokens",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("MySql:ValueGenerationStrategy", MySqlValueGenerationStrategy.IdentityColumn),
+                    Email = table.Column<string>(type: "longtext", nullable: false)
+                        .Annotation("MySql:CharSet", "utf8mb4"),
+                    Code = table.Column<string>(type: "longtext", nullable: false)
+                        .Annotation("MySql:CharSet", "utf8mb4"),
+                    ExpiresAt = table.Column<DateTime>(type: "datetime(6)", nullable: false),
+                    Used = table.Column<bool>(type: "tinyint(1)", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PasswordResetTokens", x => x.Id);
+                })
+                .Annotation("MySql:CharSet", "utf8mb4");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "PasswordResetTokens");
+        }
+    }
+}

CalendarReminder.Api/Migrations/AppDbContextModelSnapshot.cs

@@ -22,6 +22,33 @@ namespace CalendarReminder.Api.Migrations
 
             MySqlModelBuilderExtensions.AutoIncrementColumns(modelBuilder);
 
+            modelBuilder.Entity("CalendarReminder.Domain.Entities.PasswordResetToken", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    MySqlPropertyBuilderExtensions.UseMySqlIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Code")
+                        .IsRequired()
+                        .HasColumnType("longtext");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("longtext");
+
+                    b.Property<DateTime>("ExpiresAt")
+                        .HasColumnType("datetime(6)");
+
+                    b.Property<bool>("Used")
+                        .HasColumnType("tinyint(1)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("PasswordResetTokens");
+                });
+
             modelBuilder.Entity("CalendarReminder.Domain.Entities.Reminder", b =>
                 {
                     b.Property<int>("Id")

CalendarReminder.Api/Program.cs

@@ -41,11 +41,22 @@ builder.Services.AddHostedService<ReminderNotificationService>();
 
 var app = builder.Build();
 
-// Auto-migrate pri štarte
+// Auto-migrate + seed admin
 using (var scope = app.Services.CreateScope())
 {
     var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
     db.Database.Migrate();
+
+    if (!db.Users.Any())
+    {
+        db.Users.Add(new CalendarReminder.Domain.Entities.User
+        {
+            Username = "admin",
+            Email    = "admin@local",
+            PasswordHash = BCrypt.Net.BCrypt.HashPassword("admin")
+        });
+        db.SaveChanges();
+    }
 }
 
 if (app.Environment.IsDevelopment())

CalendarReminder.Api/appsettings.Development.json

@@ -1,8 +1,13 @@
 {
-  "Logging": {
-    "LogLevel": {
-      "Default": "Information",
-      "Microsoft.AspNetCore": "Warning"
-    }
+  "ConnectionStrings": {
+    "Default": "Server=192.168.1.68;Port=3306;Database=calendarreminder;User=mip;Password=mip@2013;"
+  },
+  "Jwt": {
+    "Secret": "Hhb$bHfHsi@*lqxd1noC&DPK!$SL8fy9x"
+  },
+  "Email": {
+    "Username": "nas@culak.sk",
+    "Password": "qyoq taqy vwpb tyiq",
+    "From": "nas@culak.sk"
   }
 }

CalendarReminder.Api/appsettings.json

@@ -7,19 +7,19 @@
   },
   "AllowedHosts": "*",
   "ConnectionStrings": {
-    "Default": "Server=192.168.1.68;Port=3306;Database=calendarreminder;User=mip;Password=mip@2013;"
+    "Default": ""
   },
   "Jwt": {
-    "Secret": "Hhb$bHfHsi@*lqxd1noC&DPK!$SL8fy9x",
+    "Secret": "",
     "Issuer": "CalendarReminder",
     "Audience": "CalendarReminderUsers"
   },
   "Email": {
     "Host": "smtp.gmail.com",
-    "Port": 465,
-    "Username": "nas@culak.sk",
-    "Password": "ggTdYzhRfFlK3RoiojOr",
-    "From": "nas@culak.sk",
-    "UseSsl": true
+    "Port": 587,
+    "Username": "",
+    "Password": "",
+    "From": "",
+    "UseSsl": false
   }
 }

CalendarReminder.Api/wwwroot/index.html

@@ -30,9 +30,18 @@
     .auth-logo .logo-icon { font-size: 1.8rem; }
     .auth-logo h1 { font-size: 1.45rem; color: #58a6ff; font-weight: 700; letter-spacing: -0.3px; }
     .auth-card > p { color: #8b949e; font-size: 0.88rem; margin-bottom: 1.75rem; padding-left: 2.4rem; }
-    .tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
-    .tab-btn { flex: 1; padding: 0.5rem; border: 1px solid #30363d; border-radius: 7px; background: transparent; color: #8b949e; cursor: pointer; font-size: 0.9rem; transition: all 0.15s; }
-    .tab-btn.active { background: #1f6feb; border-color: #1f6feb; color: #fff; font-weight: 600; }
+    .forgot-link { font-size: 0.8rem; color: #58a6ff; cursor: pointer; text-align: right; margin-top: -0.5rem; margin-bottom: 1rem; display: block; background: none; border: none; padding: 0; }
+    .forgot-link:hover { text-decoration: underline; }
+    .back-link { font-size: 0.8rem; color: #8b949e; cursor: pointer; background: none; border: none; padding: 0; margin-bottom: 1.25rem; display: flex; align-items: center; gap: 0.3rem; }
+    .back-link:hover { color: #c9d1d9; }
+    .reset-title { font-size: 0.95rem; font-weight: 600; color: #c9d1d9; margin-bottom: 0.25rem; }
+    .reset-subtitle { font-size: 0.82rem; color: #8b949e; margin-bottom: 1.25rem; }
+    .send-code-row { display: flex; gap: 0.5rem; margin-bottom: 0.9rem; }
+    .send-code-row input { flex: 1; }
+    .btn-send-code { padding: 0.6rem 0.85rem; background: #1f6feb22; border: 1px solid #1f6feb55; border-radius: 7px; color: #58a6ff; cursor: pointer; font-size: 0.82rem; white-space: nowrap; transition: all 0.15s; }
+    .btn-send-code:hover { background: #1f6feb44; }
+    .btn-send-code:disabled { opacity: 0.4; cursor: not-allowed; }
+    .code-section { display: none; }
     .fg { margin-bottom: 0.9rem; }
     .fg label { display: block; font-size: 0.8rem; color: #8b949e; margin-bottom: 0.35rem; text-transform: uppercase; letter-spacing: 0.4px; }
     .fg input { width: 100%; padding: 0.6rem 0.85rem; background: #0d1117; border: 1px solid #30363d; border-radius: 7px; color: #e1e4e8; font-size: 0.95rem; outline: none; transition: border-color 0.15s; }
@@ -349,23 +358,38 @@
       <h1>Calendar Reminder</h1>
     </div>
     <p>Správa udalostí s emailovými notifikáciami</p>
-    <div class="tabs">
-      <button class="tab-btn active" onclick="showTab('login')">Prihlásiť sa</button>
-      <button class="tab-btn" onclick="showTab('register')">Registrácia</button>
-    </div>
+
+    <!-- LOGIN -->
     <div id="login-form">
-      <div class="fg"><label>Email</label><input type="email" id="l-email" placeholder="vas@email.com" /></div>
+      <div class="fg"><label>Email alebo meno</label><input type="text" id="l-email" placeholder="admin" /></div>
       <div class="fg"><label>Heslo</label><input type="password" id="l-pass" placeholder="••••••••" onkeydown="if(event.key==='Enter')doLogin()" /></div>
       <button class="btn-primary" onclick="doLogin()">Prihlásiť sa</button>
+      <button class="forgot-link" onclick="showReset()">Zabudol som heslo</button>
       <div class="err" id="l-err"></div>
     </div>
-    <div id="register-form" style="display:none">
-      <div class="fg"><label>Meno</label><input type="text" id="r-name" placeholder="Ján Novák" /></div>
-      <div class="fg"><label>Email</label><input type="email" id="r-email" placeholder="vas@email.com" /></div>
-      <div class="fg"><label>Heslo</label><input type="password" id="r-pass" placeholder="min. 6 znakov" onkeydown="if(event.key==='Enter')doRegister()" /></div>
-      <button class="btn-primary" onclick="doRegister()">Vytvoriť účet</button>
+
+    <!-- RESET HESLA -->
+    <div id="reset-form" style="display:none">
+      <button class="back-link" onclick="showLogin()">← Späť na prihlásenie</button>
+      <div class="reset-title">Obnova hesla</div>
+      <div class="reset-subtitle" id="reset-subtitle">Zadaj email a nové heslo.</div>
+
+      <div class="send-code-row">
+        <input type="email" id="r-email" placeholder="Email *" />
+        <button class="btn-send-code" id="btn-send-code" onclick="sendResetCode()">Zaslať kód</button>
+      </div>
+
+      <!-- Kód — skrytý, zobrazí sa po aktivácii mailovej služby -->
+      <div class="code-section" id="code-section">
+        <div class="fg"><label>Kód z emailu (8 znakov)</label><input type="text" id="r-code" placeholder="XXXXXXXX" maxlength="8" style="text-transform:uppercase;letter-spacing:0.3rem;font-weight:700" /></div>
+      </div>
+
+      <div class="fg"><label>Nové heslo</label><input type="password" id="r-newpass" placeholder="min. 6 znakov" /></div>
+      <div class="fg"><label>Potvrď heslo</label><input type="password" id="r-newpass2" placeholder="zopakuj heslo" onkeydown="if(event.key==='Enter')doResetPassword()" /></div>
+      <button class="btn-primary" onclick="doResetPassword()">Zmeniť heslo</button>
       <div class="err" id="r-err"></div>
     </div>
+
   </div>
 </div>
 
@@ -499,28 +523,79 @@ calMonth = now0.getMonth();
 if (token) showApp();
 
 // ═══ AUTH ═══
-function showTab(t) {
-  document.querySelectorAll('.tab-btn').forEach((b,i) => b.classList.toggle('active', i===(t==='login'?0:1)));
-  document.getElementById('login-form').style.display    = t==='login'    ? 'block':'none';
-  document.getElementById('register-form').style.display = t==='register' ? 'block':'none';
+function showLogin() {
+  document.getElementById('login-form').style.display = 'block';
+  document.getElementById('reset-form').style.display = 'none';
+  document.getElementById('l-err').textContent = '';
+}
+
+function showReset() {
+  document.getElementById('login-form').style.display = 'none';
+  document.getElementById('reset-form').style.display = 'block';
+  document.getElementById('r-err').textContent = '';
+  document.getElementById('reset-subtitle').textContent = 'Zadaj email a nové heslo.';
 }
 
 async function doLogin() {
+  const err = document.getElementById('l-err');
+  err.textContent = '';
   const res = await fetch(`${API}/auth/login`, {
     method:'POST', headers:{'Content-Type':'application/json'},
     body: JSON.stringify({ email: v('l-email'), password: v('l-pass') })
   });
   if (res.ok) { const d = await res.json(); saveAuth(d); showApp(); }
-  else document.getElementById('l-err').textContent = await res.text();
+  else err.textContent = await res.text();
 }
 
-async function doRegister() {
-  const res = await fetch(`${API}/auth/register`, {
+// Zaslanie kódu — aktivuje sa keď bude mailová služba funkčná
+const RESET_WITH_CODE = true;
+
+async function sendResetCode() {
+  const email = v('r-email').trim();
+  if (!email) { document.getElementById('r-err').textContent = 'Zadaj email.'; return; }
+  const btn = document.getElementById('btn-send-code');
+  btn.disabled = true;
+  const res = await fetch(`${API}/auth/send-reset-code`, {
     method:'POST', headers:{'Content-Type':'application/json'},
-    body: JSON.stringify({ username: v('r-name'), email: v('r-email'), password: v('r-pass') })
+    body: JSON.stringify({ email })
   });
-  if (res.ok) { const d = await res.json(); saveAuth(d); showApp(); }
-  else document.getElementById('r-err').textContent = await res.text();
+  btn.disabled = false;
+  if (res.ok) {
+    document.getElementById('code-section').style.display = 'block';
+    document.getElementById('reset-subtitle').textContent = 'Kód bol odoslaný na email. Zadaj ho nižšie.';
+    document.getElementById('r-err').style.color = '#3fb950';
+    document.getElementById('r-err').textContent = '✓ Kód odoslaný';
+  } else {
+    document.getElementById('r-err').style.color = '#f85149';
+    document.getElementById('r-err').textContent = await res.text();
+  }
+}
+
+async function doResetPassword() {
+  const err = document.getElementById('r-err');
+  err.style.color = '#f85149';
+  err.textContent = '';
+  const email   = v('r-email').trim();
+  const pass    = v('r-newpass');
+  const pass2   = v('r-newpass2');
+  const code    = v('r-code').trim().toUpperCase();
+
+  if (!email)        { err.textContent = 'Zadaj email.'; return; }
+  if (pass.length < 6) { err.textContent = 'Heslo musí mať aspoň 6 znakov.'; return; }
+  if (pass !== pass2)  { err.textContent = 'Heslá sa nezhodujú.'; return; }
+  if (RESET_WITH_CODE && !code) { err.textContent = 'Zadaj kód z emailu.'; return; }
+
+  const res = await fetch(`${API}/auth/reset-password`, {
+    method:'POST', headers:{'Content-Type':'application/json'},
+    body: JSON.stringify({ email, newPassword: pass, code: RESET_WITH_CODE ? code : null })
+  });
+  if (res.ok) {
+    err.style.color = '#3fb950';
+    err.textContent = '✓ Heslo bolo zmenené. Môžeš sa prihlásiť.';
+    setTimeout(showLogin, 2000);
+  } else {
+    err.textContent = await res.text();
+  }
 }
 
 function saveAuth(d) {

CalendarReminder.Domain/Entities/PasswordResetToken.cs

@@ -0,0 +1,10 @@
+namespace CalendarReminder.Domain.Entities;
+
+public class PasswordResetToken
+{
+    public int Id { get; set; }
+    public string Email { get; set; } = "";
+    public string Code { get; set; } = "";       // 8 znakov
+    public DateTime ExpiresAt { get; set; }
+    public bool Used { get; set; }
+}

docker-compose.yml

@@ -4,20 +4,26 @@ services:
     ports:
       - "8080:8080"
     environment:
-      - ConnectionStrings__Default=Server=db;Port=3306;Database=calendarreminder;User=appuser;Password=secret;
       - ASPNETCORE_ENVIRONMENT=Production
-    depends_on:
-      db:
-        condition: service_healthy
+      - ConnectionStrings__Default=Server=${DB_SERVER};Port=${DB_PORT};Database=${DB_NAME};User=${DB_USER};Password=${DB_PASSWORD};
+      - Jwt__Secret=${JWT_SECRET}
+      - Jwt__Issuer=CalendarReminder
+      - Jwt__Audience=CalendarReminderUsers
+      - Email__Host=${EMAIL_HOST}
+      - Email__Port=${EMAIL_PORT}
+      - Email__Username=${EMAIL_USER}
+      - Email__Password=${EMAIL_PASS}
+      - Email__From=${EMAIL_USER}
+      - Email__UseSsl=${EMAIL_SSL}
     restart: unless-stopped
 
   db:
     image: mariadb:11
     environment:
-      MARIADB_ROOT_PASSWORD: rootpass
-      MARIADB_DATABASE: calendarreminder
-      MARIADB_USER: appuser
-      MARIADB_PASSWORD: secret
+      - MARIADB_ROOT_PASSWORD=${DB_PASSWORD}
+      - MARIADB_DATABASE=${DB_NAME}
+      - MARIADB_USER=${DB_USER}
+      - MARIADB_PASSWORD=${DB_PASSWORD}
     volumes:
       - /mnt/tank/calendarreminder/mariadb:/var/lib/mysql
     healthcheck: