package __PACKAGE__.presentation.navigation

import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Home
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.ui.Modifier
import androidx.compose.ui.semantics.semantics
import androidx.compose.ui.semantics.testTag
import androidx.compose.ui.test.ExperimentalTestApi
import androidx.compose.ui.test.assertIsDisplayed
import androidx.compose.ui.test.hasTestTag
import androidx.compose.ui.test.onNodeWithTag
import androidx.compose.ui.test.performClick
import androidx.compose.ui.test.runComposeUiTest
import __PACKAGE__.testing.awaitNode
import kotlin.test.Test

/**
 * Durable shell tests — first-party Compose UI Test, spec-cited, testTag selectors.
 * Verifies `specs/app-base.spec.md`'s SHELL-01/SHELL-02 clauses directly against [AppShell]
 * with trivial in-test tabs (no ViewModel/DI wiring — the shell itself is under test), so no
 * scaffold flag combination (in particular `--no-e2e`, which removes qa/e2e) orphans these
 * clauses. `qa/e2e/smoke.yaml` remains the on-device citation of the same clauses — being
 * cited by both a durable JVM test and the E2E flow is expected, not redundant.
 */
@OptIn(ExperimentalTestApi::class)
class AppShellTest {

    private fun testTabs(): List<AppTab> = listOf(
        AppTab(
            label = "Tab One",
            icon = Icons.Filled.Home,
            content = {
                Text("Tab one content", modifier = Modifier.semantics { testTag = "tab_one_content" })
            },
        ),
        AppTab(
            label = "Tab Two",
            icon = Icons.Filled.Home,
            content = {
                Text("Tab two content", modifier = Modifier.semantics { testTag = "tab_two_content" })
            },
        ),
    )

    // SPEC: SHELL-01
    @Test
    fun `first tab renders inside the shell with the bottom nav visible on launch`() = runComposeUiTest {
        setContent {
            MaterialTheme { AppShell(tabs = testTabs()) }
        }

        awaitNode(hasTestTag("tab_one_content"))
        onNodeWithTag("tab_one_content").assertIsDisplayed()
        onNodeWithTag("app_bottom_nav").assertIsDisplayed()
    }

    // SPEC: SHELL-02
    @Test
    fun `tapping another tab renders its screen and keeps the bottom nav visible`() = runComposeUiTest {
        setContent {
            MaterialTheme { AppShell(tabs = testTabs()) }
        }

        awaitNode(hasTestTag("tab_one_content"))

        // Nav items carry a derived nav_<label-slug> tag (AppShell's navItemTag) —
        // select by it, never by display text.
        onNodeWithTag("nav_tab_two").performClick()
        awaitNode(hasTestTag("tab_two_content"))
        onNodeWithTag("tab_two_content").assertIsDisplayed()
        onNodeWithTag("app_bottom_nav").assertIsDisplayed()

        onNodeWithTag("nav_tab_one").performClick()
        awaitNode(hasTestTag("tab_one_content"))
        onNodeWithTag("tab_one_content").assertIsDisplayed()
        onNodeWithTag("app_bottom_nav").assertIsDisplayed()
    }
}