import { VSCodeButton, VSCodeCheckbox, VSCodeLink, VSCodeTextArea, VSCodeTextField } from "@vscode/webview-ui-toolkit/react"
import { memo, useEffect, useState } from "react"
import { useExtensionState } from "../../context/ExtensionStateContext"
import { validateApiConfiguration, validateModelId } from "../../utils/validate"
import { vscode } from "../../utils/vscode"
import ApiOptions from "./ApiOptions"

const IS_DEV = false // FIXME: use flags when packaging

type SettingsViewProps = {
	onDone: () => void
}

const SettingsView = ({ onDone }: SettingsViewProps) => {
	const {
		apiConfiguration,
		version,
		customInstructions,
		setCustomInstructions,
		alwaysAllowReadOnly,
		setAlwaysAllowReadOnly,
		alwaysAllowWrite,
		setAlwaysAllowWrite,
		alwaysAllowExecute,
		setAlwaysAllowExecute,
		alwaysAllowBrowser,
		setAlwaysAllowBrowser,
		alwaysAllowMcp,
		setAlwaysAllowMcp,
		soundEnabled,
		setSoundEnabled,
		diffEnabled,
		setDiffEnabled,
		openRouterModels,
		setAllowedCommands,
		allowedCommands,
	} = useExtensionState()
	const [apiErrorMessage, setApiErrorMessage] = useState<string | undefined>(undefined)
	const [modelIdErrorMessage, setModelIdErrorMessage] = useState<string | undefined>(undefined)
	const [commandInput, setCommandInput] = useState("")

	const handleSubmit = () => {
		const apiValidationResult = validateApiConfiguration(apiConfiguration)
		const modelIdValidationResult = validateModelId(apiConfiguration, openRouterModels)

		setApiErrorMessage(apiValidationResult)
		setModelIdErrorMessage(modelIdValidationResult)
		if (!apiValidationResult && !modelIdValidationResult) {
			vscode.postMessage({ type: "apiConfiguration", apiConfiguration })
			vscode.postMessage({ type: "customInstructions", text: customInstructions })
			vscode.postMessage({ type: "alwaysAllowReadOnly", bool: alwaysAllowReadOnly })
			vscode.postMessage({ type: "alwaysAllowWrite", bool: alwaysAllowWrite })
			vscode.postMessage({ type: "alwaysAllowExecute", bool: alwaysAllowExecute })
			vscode.postMessage({ type: "alwaysAllowBrowser", bool: alwaysAllowBrowser })
			vscode.postMessage({ type: "alwaysAllowMcp", bool: alwaysAllowMcp })
			vscode.postMessage({ type: "allowedCommands", commands: allowedCommands ?? [] })
			vscode.postMessage({ type: "soundEnabled", bool: soundEnabled })
			vscode.postMessage({ type: "diffEnabled", bool: diffEnabled })
			onDone()
		}
	}

	useEffect(() => {
		setApiErrorMessage(undefined)
		setModelIdErrorMessage(undefined)
	}, [apiConfiguration])

	// Initial validation on mount
	useEffect(() => {
		const apiValidationResult = validateApiConfiguration(apiConfiguration)
		const modelIdValidationResult = validateModelId(apiConfiguration, openRouterModels)
		setApiErrorMessage(apiValidationResult)
		setModelIdErrorMessage(modelIdValidationResult)
	}, [apiConfiguration, openRouterModels])

	const handleResetState = () => {
		vscode.postMessage({ type: "resetState" })
	}

	const handleAddCommand = () => {
		const currentCommands = allowedCommands ?? []
		if (commandInput && !currentCommands.includes(commandInput)) {
			const newCommands = [...currentCommands, commandInput]
			setAllowedCommands(newCommands)
			setCommandInput("")
			vscode.postMessage({
				type: "allowedCommands",
				commands: newCommands
			})
		}
	}

	return (
		<div
			style={{
				position: "fixed",
				top: 0,
				left: 0,
				right: 0,
				bottom: 0,
				padding: "10px 0px 0px 20px",
				display: "flex",
				flexDirection: "column",
				overflow: "hidden",
			}}>
			<div
				style={{
					display: "flex",
					justifyContent: "space-between",
					alignItems: "center",
					marginBottom: "17px",
					paddingRight: 17,
				}}>
				<h3 style={{ color: "var(--vscode-foreground)", margin: 0 }}>Settings</h3>
				<VSCodeButton onClick={handleSubmit}>Done</VSCodeButton>
			</div>
			<div
				style={{ flexGrow: 1, overflowY: "scroll", paddingRight: 8, display: "flex", flexDirection: "column" }}>
				<div style={{ marginBottom: 5 }}>
					<ApiOptions
						showModelOptions={true}
						apiErrorMessage={apiErrorMessage}
						modelIdErrorMessage={modelIdErrorMessage}
					/>
				</div>

				<div style={{ marginBottom: 5 }}>
					<VSCodeTextArea
						value={customInstructions ?? ""}
						style={{ width: "100%" }}
						rows={4}
						placeholder={
							'e.g. "Run unit tests at the end", "Use TypeScript with async/await", "Speak in Spanish"'
						}
						onInput={(e: any) => setCustomInstructions(e.target?.value ?? "")}>
						<span style={{ fontWeight: "500" }}>Custom Instructions</span>
					</VSCodeTextArea>
					<p
						style={{
							fontSize: "12px",
							marginTop: "5px",
							color: "var(--vscode-descriptionForeground)",
						}}>
						These instructions are added to the end of the system prompt sent with every request. Custom instructions set in .clinerules and .cursorrules in the working directory are also included.
					</p>
				</div>

				<div style={{ marginBottom: 5 }}>
					<VSCodeCheckbox checked={diffEnabled} onChange={(e: any) => setDiffEnabled(e.target.checked)}>
						<span style={{ fontWeight: "500" }}>Enable editing through diffs</span>
					</VSCodeCheckbox>
					<p
						style={{
							fontSize: "12px",
							marginTop: "5px",
							color: "var(--vscode-descriptionForeground)",
						}}>
						When enabled, Cline will be able to edit files more quickly and will automatically reject truncated full-file writes. Works best with the latest Claude 3.5 Sonnet model.
					</p>
				</div>

				<div style={{ marginBottom: 5 }}>
					<VSCodeCheckbox
						checked={alwaysAllowReadOnly}
						onChange={(e: any) => setAlwaysAllowReadOnly(e.target.checked)}>
						<span style={{ fontWeight: "500" }}>Always approve read-only operations</span>
					</VSCodeCheckbox>
					<p
						style={{
							fontSize: "12px",
							marginTop: "5px",
							color: "var(--vscode-descriptionForeground)",
						}}>
						When enabled, Cline will automatically view directory contents and read files without requiring
						you to click the Approve button.
					</p>
				</div>

				<div style={{ marginBottom: 5, border: "2px solid var(--vscode-errorForeground)", borderRadius: "4px", padding: "10px" }}>
					<h4 style={{ fontWeight: 500, margin: "0 0 10px 0", color: "var(--vscode-errorForeground)" }}>⚠️ High-Risk Auto-Approve Settings</h4>
					<p style={{ fontSize: "12px", marginBottom: 15, color: "var(--vscode-descriptionForeground)" }}>
						The following settings allow Cline to automatically perform potentially dangerous operations without requiring approval.
						Enable these settings only if you fully trust the AI and understand the associated security risks.
					</p>

					<div style={{ marginBottom: 5 }}>
						<VSCodeCheckbox
							checked={alwaysAllowWrite}
							onChange={(e: any) => setAlwaysAllowWrite(e.target.checked)}>
							<span style={{ fontWeight: "500" }}>Always approve write operations</span>
						</VSCodeCheckbox>
						<p style={{ fontSize: "12px", marginTop: "5px", color: "var(--vscode-descriptionForeground)" }}>
							Automatically create and edit files without requiring approval
						</p>
					</div>

					<div style={{ marginBottom: 5 }}>
						<VSCodeCheckbox
							checked={alwaysAllowBrowser}
							onChange={(e: any) => setAlwaysAllowBrowser(e.target.checked)}>
							<span style={{ fontWeight: "500" }}>Always approve browser actions</span>
						</VSCodeCheckbox>
						<p style={{ fontSize: "12px", marginTop: "5px", color: "var(--vscode-descriptionForeground)" }}>
							Automatically perform browser actions without requiring approval<br/>
							Note: Only applies when the model supports computer use
						</p>
					</div>

					<div style={{ marginBottom: 5 }}>
						<VSCodeCheckbox
							checked={alwaysAllowMcp}
							onChange={(e: any) => {
								setAlwaysAllowMcp(e.target.checked)
								vscode.postMessage({ type: "alwaysAllowMcp", bool: e.target.checked })
							}}>
							<span style={{ fontWeight: "500" }}>Always approve MCP tools</span>
						</VSCodeCheckbox>
						<p style={{ fontSize: "12px", marginTop: "5px", color: "var(--vscode-descriptionForeground)" }}>
							Enable auto-approval of individual MCP tools in the MCP Servers view (requires both this setting and the tool's individual "Always allow" checkbox)
						</p>
					</div>

					<div style={{ marginBottom: 5 }}>
						<VSCodeCheckbox
							checked={alwaysAllowExecute}
							onChange={(e: any) => setAlwaysAllowExecute(e.target.checked)}>
							<span style={{ fontWeight: "500" }}>Always approve allowed execute operations</span>
						</VSCodeCheckbox>
						<p style={{ fontSize: "12px", marginTop: "5px", color: "var(--vscode-descriptionForeground)" }}>
							Automatically execute allowed terminal commands without requiring approval
						</p>

						{alwaysAllowExecute && (
							<div style={{ marginTop: 10 }}>
								<span style={{ fontWeight: "500" }}>Allowed Auto-Execute Commands</span>
								<p style={{
									fontSize: "12px",
									marginTop: "5px",
									color: "var(--vscode-descriptionForeground)",
								}}>
									Command prefixes that can be auto-executed when "Always approve execute operations" is enabled.
								</p>

								<div style={{ display: 'flex', gap: '5px', marginTop: '10px' }}>
									<VSCodeTextField
										value={commandInput}
										onInput={(e: any) => setCommandInput(e.target.value)}
										onKeyDown={(e: any) => {
											if (e.key === 'Enter') {
												e.preventDefault()
												handleAddCommand()
											}
										}}
										placeholder="Enter command prefix (e.g., 'git ')"
										style={{ flexGrow: 1 }}
									/>
									<VSCodeButton onClick={handleAddCommand}>
										Add
									</VSCodeButton>
								</div>

								<div style={{
									marginTop: '10px',
									display: 'flex',
									flexWrap: 'wrap',
									gap: '5px'
								}}>
									{(allowedCommands ?? []).map((cmd, index) => (
										<div key={index} style={{
											display: 'flex',
											alignItems: 'center',
											gap: '5px',
											backgroundColor: 'var(--vscode-button-secondaryBackground)',
											padding: '2px 6px',
											borderRadius: '4px',
											border: '1px solid var(--vscode-button-secondaryBorder)',
											height: '24px'
										}}>
											<span>{cmd}</span>
											<VSCodeButton
												appearance="icon"
												style={{
													padding: 0,
													margin: 0,
													height: '20px',
													width: '20px',
													minWidth: '20px',
													display: 'flex',
													alignItems: 'center',
													justifyContent: 'center'
												}}
												onClick={() => {
													const newCommands = (allowedCommands ?? []).filter((_, i) => i !== index)
													setAllowedCommands(newCommands)
													vscode.postMessage({
														type: "allowedCommands",
														commands: newCommands
													})
												}}
											>
												<span className="codicon codicon-close" />
											</VSCodeButton>
										</div>
									))}
								</div>
							</div>
						)}
					</div>
				</div>

				<div style={{ marginBottom: 5 }}>
					<h4 style={{ fontWeight: 500, marginBottom: 10 }}>Experimental Features</h4>

					<div style={{ marginBottom: 5 }}>
						<VSCodeCheckbox checked={soundEnabled} onChange={(e: any) => setSoundEnabled(e.target.checked)}>
							<span style={{ fontWeight: "500" }}>Enable sound effects</span>
						</VSCodeCheckbox>
						<p
							style={{
								fontSize: "12px",
								marginTop: "5px",
								color: "var(--vscode-descriptionForeground)",
							}}>
							When enabled, Cline will play sound effects for notifications and events.
						</p>
					</div>
				</div>

				{IS_DEV && (
					<>
						<div style={{ marginTop: "10px", marginBottom: "4px" }}>Debug</div>
						<VSCodeButton onClick={handleResetState} style={{ marginTop: "5px", width: "auto" }}>
							Reset State
						</VSCodeButton>
						<p
							style={{
								fontSize: "12px",
								marginTop: "5px",
								color: "var(--vscode-descriptionForeground)",
							}}>
							This will reset all global state and secret storage in the extension.
						</p>
					</>
				)}

				<div
					style={{
						textAlign: "center",
						color: "var(--vscode-descriptionForeground)",
						fontSize: "12px",
						lineHeight: "1.2",
						marginTop: "auto",
						padding: "10px 8px 15px 0px",
					}}>
					<p style={{ wordWrap: "break-word", margin: 0, padding: 0 }}>
						If you have any questions or feedback, feel free to open an issue at{" "}
						<VSCodeLink href="https://github.com/RooVetGit/Roo-Cline" style={{ display: "inline" }}>
							https://github.com/RooVetGit/Roo-Cline
						</VSCodeLink>
					</p>
					<p style={{ fontStyle: "italic", margin: "10px 0 0 0", padding: 0 }}>v{version}</p>
				</div>
			</div>
		</div>
	)
}

export default memo(SettingsView)