"use client"

import * as React from "react"
import Link from "next/link"
import { usePathname } from "next/navigation"
import {
    Command,
    Frame,
    HelpCircle,
    Settings2,
    Terminal,
    Target,
    Plus
} from "lucide-react"

import { NavUser } from "@/components/nav-user"
import {
    Sidebar,
    SidebarContent,
    SidebarFooter,
    SidebarHeader,
    SidebarMenu,
    SidebarMenuButton,
    SidebarMenuItem,
    SidebarGroup,
    SidebarGroupLabel,
    SidebarGroupContent,
} from "@/components/ui/sidebar"
import { useQuery, useMutation } from "convex/react"
import { api } from "@/convex/_generated/api"
import { Checkbox } from "@/components/ui/checkbox"
import { Label } from "@/components/ui/label"
import { useProject } from "@/components/project-context"

export function AppSidebar({ ...props }: React.ComponentProps<typeof Sidebar>) {
    const pathname = usePathname()
    const projects = useQuery(api.projects.getProjects);
    const { selectedProjectId, setSelectedProjectId } = useProject();

    // Set default selected project
    React.useEffect(() => {
        if (projects && projects.length > 0 && !selectedProjectId) {
            // Prefer default project, otherwise first
            const defaultProj = projects.find(p => p.isDefault);
            setSelectedProjectId(defaultProj ? defaultProj._id : projects[0]._id);
        }
    }, [projects, selectedProjectId]);

    // Data Sources Query
    const dataSources = useQuery(
        api.dataSources.getProjectDataSources,
        selectedProjectId ? { projectId: selectedProjectId as any } : "skip"
    );

    const toggleConfig = useMutation(api.projects.toggleDataSourceConfig);

    const selectedProject = projects?.find(p => p._id === selectedProjectId);
    const selectedSourceIds = selectedProject?.dorkingConfig?.selectedSourceIds || [];

    const handleToggle = async (sourceId: string, checked: boolean) => {
        if (!selectedProjectId) return;
        await toggleConfig({
            projectId: selectedProjectId as any,
            sourceId: sourceId as any,
            selected: checked
        });
    };

    return (
        <Sidebar variant="inset" {...props}>
            <SidebarHeader>
                <SidebarMenu>
                    <SidebarMenuItem>
                        <SidebarMenuButton size="lg" asChild>
                            <a href="#">
                                <div className="flex aspect-square size-8 items-center justify-center rounded-lg bg-sidebar-primary text-sidebar-primary-foreground">
                                    <Command className="size-4" />
                                </div>
                                <div className="grid flex-1 text-left text-sm leading-tight">
                                    <span className="truncate font-semibold uppercase">Sanati</span>
                                    <span className="truncate text-xs">Pro</span>
                                </div>
                            </a>
                        </SidebarMenuButton>
                    </SidebarMenuItem>
                </SidebarMenu>
            </SidebarHeader>
            <SidebarContent>
                {/* Platform Nav */}
                <SidebarGroup>
                    <SidebarGroupLabel>Platform</SidebarGroupLabel>
                    <SidebarGroupContent>
                        <SidebarMenu>
                            <SidebarMenuItem>
                                <SidebarMenuButton
                                    asChild
                                    tooltip="Dashboard"
                                    isActive={pathname === "/dashboard"}
                                >
                                    <Link href="/dashboard">
                                        <Terminal />
                                        <span>Dashboard</span>
                                    </Link>
                                </SidebarMenuButton>
                            </SidebarMenuItem>
                            <SidebarMenuItem>
                                <SidebarMenuButton
                                    asChild
                                    tooltip="Opportunities"
                                    isActive={pathname === "/opportunities"}
                                >
                                    <Link href="/opportunities">
                                        <Target />
                                        <span>Opportunities</span>
                                    </Link>
                                </SidebarMenuButton>
                            </SidebarMenuItem>
                            <SidebarMenuItem>
                                <SidebarMenuButton
                                    asChild
                                    tooltip="Settings"
                                    isActive={pathname === "/settings"}
                                >
                                    <Link href="/settings">
                                        <Settings2 />
                                        <span>Settings</span>
                                    </Link>
                                </SidebarMenuButton>
                            </SidebarMenuItem>
                            <SidebarMenuItem>
                                <SidebarMenuButton
                                    asChild
                                    tooltip="Help"
                                    isActive={pathname === "/help"}
                                >
                                    <Link href="/help">
                                        <HelpCircle />
                                        <span>Help</span>
                                    </Link>
                                </SidebarMenuButton>
                            </SidebarMenuItem>
                        </SidebarMenu>
                    </SidebarGroupContent>
                </SidebarGroup>

                {/* Projects (Simple List for now, can be switcher) */}
                <SidebarGroup className="group-data-[collapsible=icon]:hidden">
                    <SidebarGroupLabel>Projects</SidebarGroupLabel>
                    <SidebarGroupContent>
                        <SidebarMenu>
                            {projects?.map((project) => (
                                <SidebarMenuItem key={project._id}>
                                    <SidebarMenuButton
                                        onClick={() => setSelectedProjectId(project._id)}
                                        isActive={selectedProjectId === project._id}
                                    >
                                        <Frame className="text-muted-foreground" />
                                        <span>{project.name}</span>
                                    </SidebarMenuButton>
                                </SidebarMenuItem>
                            ))}
                            <SidebarMenuItem>
                                <SidebarMenuButton className="text-muted-foreground">
                                    <Plus />
                                    <span>Create Project</span>
                                </SidebarMenuButton>
                            </SidebarMenuItem>
                        </SidebarMenu>
                    </SidebarGroupContent>
                </SidebarGroup>

                {/* Data Sources Config */}
                {selectedProjectId && (
                    <SidebarGroup>
                        <SidebarGroupLabel>
                            Active Data Sources
                            <span className="ml-2 text-xs font-normal text-muted-foreground">({selectedProject?.name})</span>
                        </SidebarGroupLabel>
                        <SidebarGroupContent>
                            <div className="flex flex-col gap-2 p-2">
                                {(!dataSources || dataSources.length === 0) && (
                                    <div className="text-sm text-muted-foreground pl-2">No data sources yet.</div>
                                )}
                                {dataSources?.map((source) => (
                                    <div key={source._id} className="flex items-center space-x-2">
                                        <Checkbox
                                            id={source._id}
                                            checked={selectedSourceIds.includes(source._id)}
                                            onCheckedChange={(checked) => handleToggle(source._id, checked === true)}
                                        />
                                        <Label htmlFor={source._id} className="text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70 truncate cursor-pointer">
                                            {source.name || source.url}
                                        </Label>
                                    </div>
                                ))}
                            </div>
                        </SidebarGroupContent>
                    </SidebarGroup>
                )}
            </SidebarContent>
            <SidebarFooter>
                <NavUser user={{
                    name: "User",
                    email: "user@example.com",
                    avatar: ""
                }} />
            </SidebarFooter>
        </Sidebar>
    )
}