import { Fragment } from "react";
import { App, Button, Input, Tooltip } from "antd";
import copyToClipboard from "copy-to-clipboard";
import { Copy, KeyRound, Link2, PlugZap } from "lucide-react";

import { canvasThemes } from "@/lib/canvas-theme";

const AGENT_CONNECT_STEPS = [
    { title: "方式一：在 Codex 中使用插件", text: "在 Codex app 安装 Infinite Canvas 插件后，通过插件启动画布，插件会自动启动本地 Agent 并带上连接信息。" },
    { title: "方式二：直接运行 Agent", text: "不使用 Codex 插件时，在终端运行下面命令，再回到网页里连接或手动填入 Local URL 和 Connect token。", command: "npx -y @basketikun/canvas-agent" },
];
const AGENT_PLUGIN_REMOVE_COMMAND = "codex plugin remove infinite-canvas";
const AGENT_MCP_REMOVE_COMMAND = "codex mcp remove infinite-canvas";

export function AgentConnectView({
    theme,
    url,
    token,
    enabled,
    connected,
    activity,
    connectError,
    onUrlChange,
    onTokenChange,
    onToggleEnabled,
}: {
    theme: (typeof canvasThemes)[keyof typeof canvasThemes];
    url: string;
    token: string;
    enabled: boolean;
    connected: boolean;
    activity: string;
    connectError: string;
    onUrlChange: (value: string) => void;
    onTokenChange: (value: string) => void;
    onToggleEnabled: () => void;
}) {
    const { message } = App.useApp();
    const statusText = connectError ? "连接失败" : connected ? activity : enabled ? "连接中" : "未连接";
    const statusColor = connectError ? "#dc2626" : connected ? "#16a34a" : enabled ? "#d97706" : theme.node.muted;
    const copyCommand = (command: string) => {
        copyToClipboard(command);
        message.success("命令已复制");
    };
    const codexPluginReminder = (
        <div className="rounded-lg border px-3 py-2.5 text-xs leading-5" style={{ borderColor: theme.node.stroke, color: theme.node.muted }}>
            <div className="font-medium" style={{ color: theme.node.text }}>
                Codex 插件提醒
            </div>
            <div className="mt-1">只有安装 Codex 插件或手动添加 MCP 后，工具列表才会进入 Codex 上下文并增加 token 消耗；仅运行 `npx -y @basketikun/canvas-agent` 启动本地 Agent 不会安装 MCP。</div>
            <div className="mt-2 grid gap-1.5">
                {[
                    ["移除插件", AGENT_PLUGIN_REMOVE_COMMAND],
                    ["移除手动 MCP", AGENT_MCP_REMOVE_COMMAND],
                ].map(([label, command]) => (
                    <div key={command} className="flex items-center gap-2 rounded-md border bg-transparent px-2 py-1.5" style={{ borderColor: theme.node.stroke, color: theme.node.text }}>
                        <span className="shrink-0 text-[11px]" style={{ color: theme.node.muted }}>
                            {label}
                        </span>
                        <code className="min-w-0 flex-1 overflow-x-auto whitespace-nowrap text-[11px] leading-5">{command}</code>
                        <Tooltip title="复制命令">
                            <Button size="small" type="text" className="!h-6 !w-6 !min-w-6" icon={<Copy className="size-3.5" />} onClick={() => copyCommand(command)} />
                        </Tooltip>
                    </div>
                ))}
            </div>
        </div>
    );
    return (
        <div className="thin-scrollbar min-h-0 flex-1 overflow-y-auto p-4">
            <div className="space-y-4">
                <div>
                    <div className="text-base font-semibold leading-6">连接本地 Agent</div>
                    <div className="mt-1 text-xs leading-5" style={{ color: theme.node.muted }}>
                        按使用场景选择一种连接方式。
                    </div>
                </div>
                <div className="space-y-2">
                    {AGENT_CONNECT_STEPS.map((step, index) => {
                        const command = "command" in step ? step.command : "";
                        return (
                            <Fragment key={step.title}>
                                <div className="rounded-lg px-3 py-2.5">
                                    <div className="text-sm font-medium leading-5">{step.title}</div>
                                    <div className="mt-1 text-xs leading-5" style={{ color: theme.node.muted }}>
                                        {step.text}
                                    </div>
                                    {command ? (
                                        <div className="mt-2 flex items-center gap-2 rounded-md border bg-transparent px-2 py-1.5" style={{ borderColor: theme.node.stroke, color: theme.node.text }}>
                                            <code className="min-w-0 flex-1 overflow-x-auto whitespace-nowrap text-[11px] leading-5">{command}</code>
                                            <Tooltip title="复制命令">
                                                <Button size="small" type="text" className="!h-6 !w-6 !min-w-6" icon={<Copy className="size-3.5" />} onClick={() => copyCommand(command)} />
                                            </Tooltip>
                                        </div>
                                    ) : null}
                                </div>
                                {index === 0 ? codexPluginReminder : null}
                            </Fragment>
                        );
                    })}
                </div>
                <div className="rounded-lg border p-3" style={{ borderColor: theme.node.stroke }}>
                    <div className="flex flex-wrap items-start justify-between gap-3">
                        <div className="min-w-0 flex-1">
                            <div className="flex min-w-0 items-center gap-2">
                                <span className="shrink-0 text-sm font-medium leading-5">网页连接</span>
                                <span
                                    className="inline-flex min-w-0 items-center gap-1.5 rounded-full border px-2 py-0.5 text-[11px] leading-4"
                                    style={{ borderColor: connected || enabled || connectError ? statusColor : theme.node.stroke, color: statusColor }}
                                >
                                    <span className="size-1.5 shrink-0 rounded-full" style={{ background: statusColor }} />
                                    <span className="truncate">{statusText}</span>
                                </span>
                            </div>
                            <div className="mt-1 text-xs leading-5" style={{ color: theme.node.muted }}>
                                默认自动读取 Local URL 和 Connect token，失败时再手动填写。
                            </div>
                        </div>
                        <Button className="!h-8 !px-3" type={enabled ? "default" : "primary"} icon={<PlugZap className="size-4" />} onClick={onToggleEnabled}>
                            {enabled ? "断开" : "连接"}
                        </Button>
                    </div>
                    <div className="mt-3 grid gap-2.5">
                        <label className="grid gap-1.5">
                            <span className="flex items-center gap-1.5 text-xs font-medium" style={{ color: theme.node.muted }}>
                                <Link2 className="size-3.5" />
                                本地地址
                                <span className="font-normal opacity-70">Local URL</span>
                            </span>
                            <Input size="large" prefix={<Link2 className="mr-1 size-4" style={{ color: theme.node.faint }} />} value={url} onChange={(event) => onUrlChange(event.target.value)} placeholder="例如 http://127.0.0.1:17371" />
                        </label>
                        <label className="grid gap-1.5">
                            <span className="flex items-center gap-1.5 text-xs font-medium" style={{ color: theme.node.muted }}>
                                <KeyRound className="size-3.5" />
                                连接 Token
                                <span className="font-normal opacity-70">Connect token</span>
                            </span>
                            <Input.Password
                                size="large"
                                prefix={<KeyRound className="mr-1 size-4" style={{ color: theme.node.faint }} />}
                                value={token}
                                onChange={(event) => onTokenChange(event.target.value)}
                                placeholder="自动发现，或手动填入 Connect token"
                            />
                        </label>
                        {connectError ? (
                            <div className="rounded-md border px-2.5 py-2 text-xs leading-5" style={{ borderColor: "rgba(220,38,38,.35)", color: "#dc2626" }}>
                                {connectError}
                            </div>
                        ) : null}
                    </div>
                </div>
            </div>
        </div>
    );
}