package com.peachpasswords.ui.vault

import org.junit.Assert.assertEquals
import org.junit.Assert.assertFalse
import org.junit.Assert.assertTrue
import org.junit.Test

class EntryEditScreenTest {

    // ── Top-bar label (cancel | <title> | save) ───────────────────────────────

    @Test fun title_bar_label_is_type_specific_for_new_entries() {
        assertEquals("new entry", editTitleBarLabel(isNew = true, type = "login"))
        assertEquals("new note", editTitleBarLabel(isNew = true, type = "note"))
        assertEquals("new card", editTitleBarLabel(isNew = true, type = "card"))
    }

    @Test fun title_bar_label_is_edit_for_existing_entries() {
        assertEquals("edit", editTitleBarLabel(isNew = false, type = "login"))
        assertEquals("edit", editTitleBarLabel(isNew = false, type = "note"))
    }

    @Test fun primary_action_label_matches_browser_add_view() {
        assertEquals("create", entryEditPrimaryActionLabel(isNew = true, saving = false))
        assertEquals("save", entryEditPrimaryActionLabel(isNew = false, saving = false))
        assertEquals("saving...", entryEditPrimaryActionLabel(isNew = true, saving = true))
    }

    @Test fun save_is_disabled_until_browser_minimum_fields_are_present() {
        assertFalse(canSaveEditForm(EditForm(type = "login", title = "")))
        assertTrue(canSaveEditForm(EditForm(type = "login", title = "GitHub")))
        assertFalse(canSaveEditForm(EditForm(type = "card", title = "Visa", cardholderName = "", cardNumber = "4242")))
        assertFalse(canSaveEditForm(EditForm(type = "card", title = "Visa", cardholderName = "June", cardNumber = "")))
        assertTrue(canSaveEditForm(EditForm(type = "card", title = "Visa", cardholderName = "June", cardNumber = "4242")))
    }

    // ── New note routes to NotesMode, not the form ────────────────────────────

    @Test fun new_note_routes_to_notes_mode() {
        assertTrue(shouldOpenNotesMode(isNew = true, type = "note"))
        // Existing note stays in the form; new login/card stay in the form.
        assertFalse(shouldOpenNotesMode(isNew = false, type = "note"))
        assertFalse(shouldOpenNotesMode(isNew = true, type = "login"))
        assertFalse(shouldOpenNotesMode(isNew = true, type = "card"))
    }

    // ── Ghost watermark fades in as the title is typed ────────────────────────

    @Test fun new_entry_ghost_watermark_appears_on_title_type() {
        assertEquals(0f, editGhostWatermarkTarget(""), 0f)
        assertEquals(0f, editGhostWatermarkTarget("   "), 0f)
        assertEquals(0.03f, editGhostWatermarkTarget("GitHub"), 0f)
    }

    // ── Browser AddView optional login fields ────────────────────────────────

    @Test fun new_login_hides_optional_totp_and_notes_until_requested() {
        assertFalse(shouldShowLoginTotp("login", revealed = false, totp = ""))
        assertFalse(shouldShowLoginNotes("login", revealed = false, notes = ""))
        assertTrue(shouldShowAddTotpLink("login", revealed = false, totp = ""))
        assertTrue(shouldShowAddNotesLink("login", revealed = false, notes = ""))
    }

    @Test fun optional_login_fields_show_when_revealed_or_populated() {
        assertTrue(shouldShowLoginTotp("login", revealed = true, totp = ""))
        assertTrue(shouldShowLoginTotp("login", revealed = false, totp = "JBSWY3DPEHPK3PXP"))
        assertTrue(shouldShowLoginNotes("login", revealed = true, notes = ""))
        assertTrue(shouldShowLoginNotes("login", revealed = false, notes = "remember this"))
        assertFalse(shouldShowAddTotpLink("login", revealed = true, totp = ""))
        assertFalse(shouldShowAddNotesLink("login", revealed = false, notes = "remember this"))
    }

    // ── Card field formatting (CardFieldUtils, used live by setCardNumber etc.) ─

    @Test fun new_card_number_auto_formats() {
        assertEquals("4242 4242 4242 4242", CardFieldUtils.formatPan("4242424242424242"))
        // Amex groups 4-6-5.
        assertEquals("3782 822463 10005", CardFieldUtils.formatPan("378282246310005"))
    }

    @Test fun new_card_expiry_auto_formats_mm_yy() {
        assertEquals("12", CardFieldUtils.formatExpiry("12"))
        assertEquals("12/28", CardFieldUtils.formatExpiry("1228"))
        assertEquals("12/28", CardFieldUtils.formatExpiry("122899")) // caps at 4 digits
    }

    @Test fun new_card_expiry_rejects_invalid_month() {
        // currentYear2 = 26, currentMonth = 6 (2026-06).
        assertFalse(CardFieldUtils.isExpiryValid("13/28", currentYear2 = 26, currentMonth = 6))
        assertFalse(CardFieldUtils.isExpiryValid("00/28", currentYear2 = 26, currentMonth = 6))
        assertTrue(CardFieldUtils.isExpiryValid("12/28", currentYear2 = 26, currentMonth = 6))
        // Past year rejected.
        assertFalse(CardFieldUtils.isExpiryValid("12/24", currentYear2 = 26, currentMonth = 6))
    }
}