import { useProjectId, useGithubService, useStateStore } from "@/lib/state";
import { Form, FormControl, FormField, FormItem, FormMessage } from "./components/ui/form";
import { Input } from "./components/ui/input";
import { useForm } from "react-hook-form";
import { z } from "zod";
import { zodResolver } from "@hookform/resolvers/zod";
import { Button } from "./components/ui/button";
import { useToast } from "@/hooks/use-toast";
import { Checkbox } from "./components/ui/checkbox";
import { useState, useCallback } from "react";

const schema = z.object({
	githubToken: z.string().min(1, "GitHub token is required"),
});

export function Integrations() {
	const { toast } = useToast();
	const store = useStateStore();
	const projectId = useProjectId();
	const [isEditing, setIsEditing] = useState(false);
	const githubService = useGithubService();
	const [isSaving, setIsSaving] = useState(false);

	const form = useForm<z.infer<typeof schema>>({
		resolver: zodResolver(schema),
		mode: "onChange",
	});

	const onSubmit = useCallback(
		async (data: z.infer<typeof schema>) => {
			if (!projectId) return;

			setIsSaving(true);

			try {
				const response = await fetch(`/api/project/${projectId}/github-token`, {
					method: "POST",
					headers: {
						"Content-Type": "application/json",
					},
					body: JSON.stringify({ githubToken: data.githubToken }),
				});

				if (!response.ok) {
					throw new Error("Failed to save GitHub token");
				}

				await store.refreshEnv();
				setIsEditing(false);
				form.reset();
				toast({
					title: "GitHub token saved successfully",
				});
			} catch (error) {
				toast({
					variant: "destructive",
					title: "Failed to save GitHub token",
					description: error instanceof Error ? error.message : "Unknown error",
				});
			} finally {
				setIsSaving(false);
			}
		},
		[projectId, store, form, toast, setIsEditing, setIsSaving],
	);

	const handleCancel = () => {
		setIsEditing(false);
		form.reset();
	};

	return (
		<div className="px-5 space-y-6">
			<div>
				<h3 className="text-md font-medium mb-2">GitHub</h3>
				<div className="space-y-4">
					<div className="flex items-center space-x-2">
						<Checkbox checked={!!githubService} disabled />
						<label className="text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70">
							GitHub Access Token
						</label>
					</div>

					{!!githubService && !isEditing && (
						<Button variant="outline" onClick={() => setIsEditing(true)}>
							Update Access Token
						</Button>
					)}

					{(!githubService || isEditing) && (
						<Form {...form}>
							<form className="space-y-4" onSubmit={form.handleSubmit(onSubmit)}>
								<FormField
									control={form.control}
									name="githubToken"
									render={({ field }) => (
										<FormItem>
											<FormControl>
												<Input
													type="password"
													placeholder="GitHub Personal Access Token"
													className="border border-black"
													{...field}
												/>
											</FormControl>
											<FormMessage />
										</FormItem>
									)}
								/>
								<div className="flex space-x-2">
									<Button type="submit" disabled={isSaving}>
										{isSaving ? "Saving..." : "Save"}
									</Button>
									{!!githubService && (
										<Button
											type="button"
											variant="outline"
											onClick={handleCancel}
											disabled={isSaving}
										>
											Cancel
										</Button>
									)}
								</div>
							</form>
						</Form>
					)}
				</div>
			</div>
		</div>
	);
}