/** Floating action button to start a tool from any page. */

import { useState } from "react";
import { Icon } from "./icon";
import { ToolStarter } from "./tool-starter";
import type { Workspace } from "../types/workspace";
import { listAllWorkspaces } from "../api/workspaces";

export function StartToolFAB() {
	const [open, setOpen] = useState(false);
	const [workspaces, setWorkspaces] = useState<Workspace[]>([]);
	const [workspacesLoading, setWorkspacesLoading] = useState(false);
	const [selectedWorkspace, setSelectedWorkspace] = useState<Workspace | null>(
		null,
	);

	const handleOpen = async () => {
		setOpen(true);
		setWorkspacesLoading(true);
		try {
			const data = await listAllWorkspaces();
			setWorkspaces(data);
		} catch {
			// ignore
		} finally {
			setWorkspacesLoading(false);
		}
	};

	const handleClose = () => {
		setOpen(false);
		setSelectedWorkspace(null);
	};

	return (
		<>
			<button
				className="start-tool-fab"
				onClick={handleOpen}
				title="Start a new tool"
				type="button"
				aria-label="Start a new tool"
			>
				<Icon name="play" size="md" />
			</button>

			{open && (
				<div className="modal-overlay" onClick={handleClose}>
					<div
						className="modal-content start-tool-modal"
						onClick={(e) => e.stopPropagation()}
					>
						<div className="modal-header">
							<h3>Start Tool</h3>
							<button
								className="ghost-button small"
								onClick={handleClose}
								type="button"
								aria-label="Close"
							>
								<Icon name="close" size="sm" />
							</button>
						</div>

						{workspacesLoading ? (
							<p className="muted">Loading workspaces...</p>
						) : workspaces.length === 0 ? (
							<p className="muted">
								No workspaces yet.{" "}
								<a href="/workspaces">Create a workspace first</a>.
							</p>
						) : !selectedWorkspace ? (
							<div className="form-group">
								<label htmlFor="fab-workspace-select">Select a workspace</label>
								<select
									id="fab-workspace-select"
									value=""
									onChange={(e) => {
										const ws = workspaces.find((w) => w.id === e.target.value);
										if (ws) setSelectedWorkspace(ws);
									}}
								>
									<option value="">Choose a workspace...</option>
									{workspaces.map((ws) => (
										<option key={ws.id} value={ws.id}>
											{ws.project_name} / {ws.repo_name} / {ws.name}
										</option>
									))}
								</select>
							</div>
						) : (
							<>
								<div className="tool-starter-header">
									<h4>
										{selectedWorkspace.project_name} /{" "}
										{selectedWorkspace.repo_name} / {selectedWorkspace.name}
									</h4>
									<button
										className="ghost-button small"
										onClick={() => setSelectedWorkspace(null)}
										type="button"
									>
										Change
									</button>
								</div>
								<ToolStarter
									workspace={selectedWorkspace}
									onStarted={handleClose}
									onCancel={() => setSelectedWorkspace(null)}
								/>
							</>
						)}
					</div>
				</div>
			)}
		</>
	);
}