package main

import (
	"net/http/httptest"
	"testing"
)

func TestPublicSignupConfig(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	app.createDepartment(Department{Name: "Setup", Color: "#ff0000"})
	app.createDepartment(Department{Name: "Teardown", Color: "#00ff00"})
	app.db.Exec(`INSERT OR REPLACE INTO config (key, value) VALUES ('volunteer_note_label', 'Who sent you?')`)
	app.db.Exec(`INSERT OR REPLACE INTO config (key, value) VALUES ('volunteer_note_required', 'true')`)

	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("GET", "/api/public/signup-config", nil))
	if w.Code != 200 {
		t.Fatalf("expected 200, got %d", w.Code)
	}
	result := parseJSON(t, w)
	depts, ok := result["departments"].([]any)
	if !ok || len(depts) != 2 {
		t.Fatalf("expected 2 departments, got %v", result["departments"])
	}
	if result["volunteer_note_label"] != "Who sent you?" {
		t.Errorf("expected 'Who sent you?', got %v", result["volunteer_note_label"])
	}
	if result["volunteer_note_required"] != true {
		t.Errorf("expected note required true, got %v", result["volunteer_note_required"])
	}
}

func TestPublicSignup(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)
	app.createDepartment(Department{Name: "Setup", Color: "#ff0000"})

	w := httptest.NewRecorder()
	deptID := 1
	mux.ServeHTTP(w, testRequest("POST", "/api/public/signup", map[string]any{
		"preferred_name": "Titania",
		"email":          "titania@example.com",
		"pronouns":       "she/they",
		"department_id":  deptID,
	}))
	if w.Code != 200 {
		t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
	}
	result := parseJSON(t, w)
	if result["ok"] != true {
		t.Fatalf("expected ok true, got %v", result)
	}

	// Volunteer should exist
	vol, err := app.getVolunteerByEmail("titania@example.com")
	if err != nil || vol == nil {
		t.Fatal("volunteer not created")
	}
	if vol.PreferredName != "Titania" {
		t.Errorf("preferred_name = %q, want Titania", vol.PreferredName)
	}
	if vol.Pronouns != "she/they" {
		t.Errorf("pronouns = %q, want she/they", vol.Pronouns)
	}
	if vol.ConfirmationToken == nil || *vol.ConfirmationToken == "" {
		t.Error("expected confirmation token to be set")
	}
	if vol.EmailConfirmed {
		t.Error("should not be confirmed yet")
	}

	// Participant should be auto-created and linked
	if vol.ParticipantID == nil {
		t.Fatal("expected participant to be linked")
	}
	p, _ := app.getParticipant(*vol.ParticipantID)
	if p == nil {
		t.Fatal("linked participant not found")
	}
	if p.Email != "titania@example.com" {
		t.Errorf("participant email = %q, want titania@example.com", p.Email)
	}
}

func TestPublicSignupAutoMatchParticipant(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	// Pre-existing participant
	existing, _ := app.createParticipant(Participant{PreferredName: "Titania Fairweather", Email: "titania@example.com"})

	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/signup", map[string]any{
		"preferred_name": "Titania",
		"ticket_name":    "Titania Fairweather",
		"email":          "titania@example.com",
	}))
	if w.Code != 200 {
		t.Fatalf("expected 200, got %d", w.Code)
	}

	vol, _ := app.getVolunteerByEmail("titania@example.com")
	if vol == nil {
		t.Fatal("volunteer not created")
	}
	if vol.ParticipantID == nil || *vol.ParticipantID != existing.ID {
		t.Errorf("expected volunteer linked to existing participant %d, got %v", existing.ID, vol.ParticipantID)
	}
}

func TestPublicSignupDuplicateEmail(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	// First signup
	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/signup", map[string]any{
		"preferred_name": "Titania",
		"email":          "titania@example.com",
	}))
	if w.Code != 200 {
		t.Fatalf("first signup: expected 200, got %d", w.Code)
	}

	// Second signup with same email — should silently succeed
	w = httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/signup", map[string]any{
		"preferred_name": "Puck",
		"email":          "titania@example.com",
	}))
	if w.Code != 200 {
		t.Fatalf("duplicate signup: expected 200, got %d", w.Code)
	}
	result := parseJSON(t, w)
	if result["ok"] != true {
		t.Fatalf("expected ok true for duplicate, got %v", result)
	}

	// Should still be only one volunteer
	vols, _ := app.listVolunteers("", nil, "")
	if len(vols) != 1 {
		t.Errorf("expected 1 volunteer, got %d", len(vols))
	}
}

func TestPublicSignupMissingFields(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	tests := []struct {
		name string
		body map[string]any
	}{
		{"no name", map[string]any{"email": "a@b.com"}},
		{"no email", map[string]any{"preferred_name": "Titania"}},
		{"empty both", map[string]any{}},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			w := httptest.NewRecorder()
			mux.ServeHTTP(w, testRequest("POST", "/api/public/signup", tt.body))
			if w.Code != 400 {
				t.Errorf("expected 400, got %d", w.Code)
			}
		})
	}
}

func TestPublicSignupNoteRequired(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)
	app.db.Exec(`INSERT OR REPLACE INTO config (key, value) VALUES ('volunteer_note_required', 'true')`)

	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/signup", map[string]any{
		"preferred_name": "Titania",
		"email":          "titania@example.com",
		"note":           "",
	}))
	if w.Code != 400 {
		t.Fatalf("expected 400 when note required but empty, got %d", w.Code)
	}

	// With note provided
	w = httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/signup", map[string]any{
		"preferred_name": "Titania",
		"email":          "titania@example.com",
		"note":           "A friend sent me",
	}))
	if w.Code != 200 {
		t.Fatalf("expected 200 with note, got %d: %s", w.Code, w.Body.String())
	}
}

func TestConfirmEmail(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	token := "abc123def456"
	app.createVolunteer(Volunteer{
		Name:              "Titania",
		PreferredName:     "Titania",
		Email:             "titania@example.com",
		ConfirmationToken: &token,
	})

	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/confirm", map[string]any{"token": token}))
	if w.Code != 200 {
		t.Fatalf("expected 200, got %d", w.Code)
	}
	result := parseJSON(t, w)
	if result["status"] != "confirmed" {
		t.Errorf("expected confirmed, got %v", result["status"])
	}

	// Verify volunteer is confirmed
	vol, _ := app.getVolunteerByEmail("titania@example.com")
	if vol == nil || !vol.EmailConfirmed {
		t.Error("volunteer should be email confirmed")
	}
	if vol.ConfirmationToken != nil {
		t.Error("confirmation token should be cleared after confirmation")
	}
}

func TestConfirmEmailInvalid(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/confirm", map[string]any{"token": "nonexistent"}))
	if w.Code != 200 {
		t.Fatalf("expected 200, got %d", w.Code)
	}
	result := parseJSON(t, w)
	if result["status"] != "invalid" {
		t.Errorf("expected invalid, got %v", result["status"])
	}
}

func TestConfirmEmailAlreadyConfirmed(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	token := "abc123def456"
	app.createVolunteer(Volunteer{
		Name:              "Titania",
		PreferredName:     "Titania",
		Email:             "titania@example.com",
		ConfirmationToken: &token,
	})

	// Confirm first time
	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/confirm", map[string]any{"token": token}))
	if parseJSON(t, w)["status"] != "confirmed" {
		t.Fatal("first confirm should succeed")
	}

	// Second confirm with same token should be invalid (token cleared)
	w = httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/confirm", map[string]any{"token": token}))
	result := parseJSON(t, w)
	if result["status"] != "invalid" {
		t.Errorf("expected invalid after token cleared, got %v", result["status"])
	}
}

func TestConfirmEmailWithSignupsOpen(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	app.db.Exec(`INSERT OR REPLACE INTO config (key, value) VALUES ('shift_signups_open', 'true')`)
	app.baseURL = "https://example.com"

	participant, _ := app.createParticipant(Participant{PreferredName: "Titania", Email: "titania@example.com"})
	token := "abc123def456"
	app.createVolunteer(Volunteer{
		Name:              "Titania",
		PreferredName:     "Titania",
		Email:             "titania@example.com",
		ParticipantID:     &participant.ID,
		ConfirmationToken: &token,
	})

	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/confirm", map[string]any{"token": token}))
	if w.Code != 200 {
		t.Fatalf("expected 200, got %d", w.Code)
	}
	result := parseJSON(t, w)
	if result["status"] != "confirmed" {
		t.Fatalf("expected confirmed, got %v", result["status"])
	}
	kioskLink, ok := result["kiosk_link"].(string)
	if !ok || kioskLink == "" {
		t.Error("expected kiosk_link when signups are open")
	}

	// Ticket for participant should now have a code
	tickets, _ := app.listTickets(&participant.ID, "")
	hasCode := false
	for _, tk := range tickets {
		if tk.Code != nil && *tk.Code != "" {
			hasCode = true
			break
		}
	}
	if !hasCode {
		t.Error("participant should have a ticket with code after confirm with signups open")
	}
}

func TestPublicSignupTicketNameDoesNotOverwritePreferredName(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/signup", map[string]any{
		"preferred_name": "Titania",
		"ticket_name":    "Titania Fairweather",
		"email":          "titania@example.com",
	}))
	if w.Code != 200 {
		t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
	}

	vol, _ := app.getVolunteerByEmail("titania@example.com")
	if vol == nil || vol.ParticipantID == nil {
		t.Fatal("volunteer/participant not created")
	}
	p, _ := app.getParticipant(*vol.ParticipantID)
	if p == nil {
		t.Fatal("participant not found")
	}
	if p.PreferredName != "Titania" {
		t.Errorf("participant preferred_name = %q, want %q (not ticket_name)", p.PreferredName, "Titania")
	}
	if vol.TicketName != "Titania Fairweather" {
		t.Errorf("vol.TicketName = %q, want %q", vol.TicketName, "Titania Fairweather")
	}
}

func TestConfirmEmailStubTicketHasName(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	app.db.Exec(`INSERT OR REPLACE INTO config (key, value) VALUES ('shift_signups_open', 'true')`)
	app.baseURL = "https://example.com"

	// Volunteer with a ticket_name but no pre-existing ticket
	participant, _ := app.createParticipant(Participant{PreferredName: "Titania", Email: "titania@example.com"})
	token := "abc123def456"
	app.createVolunteer(Volunteer{
		Name:              "Titania",
		PreferredName:     "Titania",
		TicketName:        "Titania Fairweather",
		Email:             "titania@example.com",
		ParticipantID:     &participant.ID,
		ConfirmationToken: &token,
	})

	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/confirm", map[string]any{"token": token}))
	if w.Code != 200 {
		t.Fatalf("expected 200, got %d", w.Code)
	}
	result := parseJSON(t, w)
	if result["status"] != "confirmed" {
		t.Fatalf("expected confirmed, got %v", result["status"])
	}

	// Stub ticket should have been created with TicketName as its name
	tickets, _ := app.listTickets(&participant.ID, "")
	if len(tickets) == 0 {
		t.Fatal("expected stub ticket to be created")
	}
	if tickets[0].Name != "Titania Fairweather" {
		t.Errorf("stub ticket name = %q, want %q", tickets[0].Name, "Titania Fairweather")
	}
}

func TestConfirmEmailStubTicketFallsBackToPreferredName(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)

	app.db.Exec(`INSERT OR REPLACE INTO config (key, value) VALUES ('shift_signups_open', 'true')`)
	app.baseURL = "https://example.com"

	// Volunteer with no ticket_name — stub should use preferred_name
	participant, _ := app.createParticipant(Participant{PreferredName: "Titania", Email: "titania@example.com"})
	token := "abc123def456"
	app.createVolunteer(Volunteer{
		Name:              "Titania",
		PreferredName:     "Titania",
		Email:             "titania@example.com",
		ParticipantID:     &participant.ID,
		ConfirmationToken: &token,
	})

	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testRequest("POST", "/api/public/confirm", map[string]any{"token": token}))
	if w.Code != 200 {
		t.Fatalf("expected 200, got %d", w.Code)
	}

	tickets, _ := app.listTickets(&participant.ID, "")
	if len(tickets) == 0 {
		t.Fatal("expected stub ticket to be created")
	}
	if tickets[0].Name != "Titania" {
		t.Errorf("stub ticket name = %q, want %q (preferred_name fallback)", tickets[0].Name, "Titania")
	}
}

func TestToggleShiftSignups(t *testing.T) {
	app := testApp(t)
	mux := testMux(app)
	admin := testAdminUser(t, app)
	tok := testToken(t, app, admin)

	w := httptest.NewRecorder()
	mux.ServeHTTP(w, testAuthRequest("POST", "/api/settings/shift-signups", map[string]any{"open": true}, tok))
	if w.Code != 200 {
		t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
	}
	result := parseJSON(t, w)
	if result["shift_signups_open"] != true {
		t.Errorf("expected shift_signups_open true, got %v", result)
	}

	// Check config stored
	var val string
	app.db.QueryRow(`SELECT value FROM config WHERE key = 'shift_signups_open'`).Scan(&val)
	if val != "true" {
		t.Errorf("config not stored, got %q", val)
	}
}