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import { NativeHeaderToolbar, NativeStackScreenOptions } from "../../native/StackHeader";import { useIsFocused, useNavigation, type StaticScreenProps } from "@react-navigation/native";import { SymbolView } from "../../components/AppSymbol";import type { EnvironmentId, ProjectId } from "@t3tools/contracts";import { useEffect, useMemo, useRef } from "react";import { ActivityIndicator, Alert, Platform, Pressable, ScrollView, View } from "react-native";import { useSafeAreaInsets } from "react-native-safe-area-context";import { useThemeColor } from "../../lib/useThemeColor";import { cn } from "../../lib/cn"; import { AndroidScreenHeader } from "../../components/AndroidScreenHeader";import { AppText as Text } from "../../components/AppText";import { ProjectFavicon } from "../../components/ProjectFavicon";import { useProjects, useThreadShells } from "../../state/entities";import type { WorkspaceState } from "../../state/workspaceModel";import { useWorkspaceState } from "../../state/workspace";import { groupProjectsByRepository } from "../../lib/repositoryGroups";import { useAdaptiveWorkspaceLayout } from "../layout/AdaptiveWorkspaceLayout";import { useIncomingShare } from "../sharing/IncomingShareProvider"; type NewTaskRouteParams = {  readonly incomingShareId?: string | string[];}; function deriveProjectEmptyState(catalogState: WorkspaceState): {  readonly title: string;  readonly detail: string;  readonly loading: boolean;} {  if (catalogState.isLoadingConnections) {    return {      title: "Loading environments",      detail: "Checking saved environments on this device.",      loading: true,    };  }   if (!catalogState.hasConnections) {    return {      title: "No environments connected",      detail: "Add an environment before creating a task.",      loading: false,    };  }   if (    (catalogState.connectionState === "available" ||      catalogState.connectionState === "offline" ||      catalogState.connectionState === "error") &&    !catalogState.hasLoadedShellSnapshot  ) {    return {      title: "Environment unavailable",      detail:        catalogState.connectionError ??        "The saved environment is offline. Check the URL or start the environment, then retry.",      loading: false,    };  }   if (    catalogState.hasConnectingEnvironment &&    !catalogState.hasLoadedShellSnapshot &&    catalogState.connectionError === null  ) {    return {      title: "Connecting to environment",      detail: "Loading projects from the saved environment.",      loading: true,    };  }   return {    title: "No projects found",    detail: "The connected environment did not report any projects.",    loading: false,  };} export function NewTaskRouteScreen({ route }: StaticScreenProps<NewTaskRouteParams | undefined>) {  const projects = useProjects();  const threads = useThreadShells();  const { state: catalogState } = useWorkspaceState();  const navigation = useNavigation();  const isFocused = useIsFocused();  const { layout } = useAdaptiveWorkspaceLayout();  const insets = useSafeAreaInsets();  const chevronColor = useThemeColor("--color-chevron");  const accentColor = useThemeColor("--color-icon-muted");  const { getShare, releaseShareReservation } = useIncomingShare();  const routeShareId = Array.isArray(route.params?.incomingShareId)    ? route.params.incomingShareId[0]    : route.params?.incomingShareId;  const incomingShare = routeShareId ? getShare(routeShareId) : null;  const incomingShareSubtitle = incomingShare    ? incomingShare.attachments.length === 0      ? "Choose a project for what you shared"      : incomingShare.attachments.length === 1        ? "Choose a project for the image you shared"        : `Choose a project for the ${incomingShare.attachments.length} images you shared`    : null;  const screenTitle = incomingShare ? "Start a task" : "Choose project";  const repositoryGroups = useMemo(    () => groupProjectsByRepository({ projects, threads }),    [projects, threads],  );  const items = useMemo(() => {    const nextItems: Array<{      readonly environmentId: EnvironmentId;      readonly id: ProjectId;      readonly key: string;      readonly title: string;      readonly workspaceRoot: string;    }> = [];    for (const group of repositoryGroups) {      const project = group.projects[0]?.project;      if (!project) {        continue;      }      nextItems.push({        environmentId: project.environmentId,        id: project.id,        key: group.key,        title: project.title,        workspaceRoot: project.workspaceRoot,      });    }    return nextItems;  }, [repositoryGroups]);  const projectEmptyState = deriveProjectEmptyState(catalogState);  const resumedDestinationKeyRef = useRef<string | null>(null);  const reservedDestinationProject = incomingShare?.destination    ? (projects.find(        (project) =>          project.environmentId === incomingShare.destination?.environmentId &&          project.id === incomingShare.destination?.projectId,      ) ?? null)    : null;   async function selectProject(item: (typeof items)[number]): Promise<void> {    if (incomingShare?.destination && !reservedDestinationProject) {      try {        await releaseShareReservation(incomingShare.id, incomingShare.destination);      } catch (error) {        Alert.alert(          "Could not change project",          error instanceof Error            ? error.message            : "The shared content reservation could not be updated.",        );        return;      }    }    navigation.navigate("NewTaskSheet", {      screen: "NewTaskDraft",      params: {        environmentId: item.environmentId,        projectId: item.id,        title: item.title,        incomingShareId: incomingShare?.id,      },    });  }   useEffect(() => {    const destination = incomingShare?.destination;    if (!destination) {      resumedDestinationKeyRef.current = null;      return;    }    if (!isFocused) {      // Returning from the reserved draft is a fresh resume attempt. Keeping      // this latch set would leave every project row disabled with no route.      resumedDestinationKeyRef.current = null;      return;    }    const destinationKey = `${incomingShare.id}:${destination.environmentId}:${destination.projectId}`;    if (resumedDestinationKeyRef.current === destinationKey) {      return;    }    if (!reservedDestinationProject) {      return;    }    resumedDestinationKeyRef.current = destinationKey;    navigation.navigate("NewTaskSheet", {      screen: "NewTaskDraft",      params: {        environmentId: reservedDestinationProject.environmentId,        projectId: reservedDestinationProject.id,        title: reservedDestinationProject.title,        incomingShareId: incomingShare.id,      },    });  }, [incomingShare, isFocused, navigation, reservedDestinationProject]);   return (    <View collapsable={false} className="flex-1 bg-sheet">      {Platform.OS === "android" ? (        <>          {/* Android renders its own in-screen header instead of the native bar. */}          <NativeStackScreenOptions options={{ headerShown: false }} />          <AndroidScreenHeader            title={screenTitle}            subtitle={incomingShareSubtitle}            onBack={layout.usesSplitView ? () => navigation.goBack() : undefined}            actions={[              {                accessibilityLabel: "Add project",                icon: "plus",                onPress: () => navigation.navigate("NewTaskSheet", { screen: "AddProject" }),              },            ]}          />        </>      ) : (        <>          <NativeStackScreenOptions            options={{              title: screenTitle,              unstable_headerSubtitle: incomingShareSubtitle ?? undefined,            }}          />          <NativeHeaderToolbar placement="right">            {layout.usesSplitView ? (              <NativeHeaderToolbar.Button                accessibilityLabel="Close new task"                icon="xmark"                onPress={() => navigation.goBack()}                separateBackground              />            ) : null}            <NativeHeaderToolbar.Button              icon="plus"              onPress={() => navigation.navigate("NewTaskSheet", { screen: "AddProject" })}              separateBackground            />          </NativeHeaderToolbar>        </>      )}       <ScrollView        contentInsetAdjustmentBehavior="automatic"        showsVerticalScrollIndicator={false}        className="flex-1"        contentInset={{ bottom: Math.max(insets.bottom, 18) + 18 }}        contentContainerStyle={{          gap: 12,          paddingHorizontal: 20,          paddingTop: 8,        }}      >        {items.length === 0 ? (          <View collapsable={false} className="items-center gap-3 rounded-[24px] bg-card px-6 py-8">            {projectEmptyState.loading ? <ActivityIndicator color={accentColor} /> : null}            <Text className="text-center text-lg font-t3-bold text-foreground">              {projectEmptyState.title}            </Text>            <Text className="text-center text-sm leading-normal text-foreground-muted">              {projectEmptyState.detail}            </Text>            {!catalogState.hasReadyEnvironment ? (              <Pressable                className="mt-1 rounded-full bg-primary px-4 py-2.5 active:opacity-70"                onPress={() => navigation.navigate("ConnectionsNew")}              >                <Text className="text-sm font-t3-bold text-primary-foreground">                  Add environment                </Text>              </Pressable>            ) : (              <Pressable                className="mt-1 rounded-full bg-primary px-4 py-2.5 active:opacity-70"                onPress={() => navigation.navigate("NewTaskSheet", { screen: "AddProject" })}              >                <Text className="text-sm font-t3-bold text-primary-foreground">                  Add new project                </Text>              </Pressable>            )}          </View>        ) : (          <View collapsable={false} className="overflow-hidden rounded-[24px] bg-card">            {items.map((item, index) => {              const isFirst = index === 0;              const isLast = index === items.length - 1;               return (                <Pressable                  key={item.key}                  disabled={reservedDestinationProject !== null}                  onPress={() => void selectProject(item)}                  className={cn(                    "bg-card px-4 py-3.5",                    !isFirst && "border-t border-border-subtle",                    isFirst && "rounded-t-[24px]",                    isLast && "rounded-b-[24px]",                  )}                >                  <View className="flex-row items-center justify-between gap-3">                    <View className="h-7 w-7 items-center justify-center">                      <ProjectFavicon                        environmentId={item.environmentId}                        size={20}                        projectTitle={item.title}                        workspaceRoot={item.workspaceRoot}                      />                    </View>                    <View className="flex-1">                      <Text className="text-base leading-snug font-t3-bold">{item.title}</Text>                    </View>                    <SymbolView                      name="chevron.right"                      size={14}                      tintColor={chevronColor}                      type="monochrome"                    />                  </View>                </Pressable>              );            })}          </View>        )}      </ScrollView>    </View>  );}