/**
 * Impact Level Scale Configuration
 *
 * Different contexts (Risk vs Process vs Asset) use different terminology:
 * - Risk: Negligible → Critical
 * - Process: Insignificant → Vital
 * - Asset: Insignificant → Business Critical
 */

import type { MessageDescriptor } from "react-intl";
import { messages } from "./messages";

/** Impact level 0-5 as per schema */
export type ImpactLevel = 0 | 1 | 2 | 3 | 4 | 5;

export interface ImpactLevelConfig {
	/** i18n message descriptor for the label */
	message: MessageDescriptor;
	/** Fallback label (used when no IntlProvider) */
	fallbackLabel: string;
	color: string;
	bgColor: string;
	barColor: string;
}

export type ImpactScaleConfig = Record<ImpactLevel, ImpactLevelConfig>;

/**
 * Risk Scale (default) - Used for Risk assessments
 * Not rated → Negligible → Low → Medium → High → Critical
 */
export const riskScale: ImpactScaleConfig = {
	0: {
		message: messages.risk_0,
		fallbackLabel: "Not rated",
		color: "text-muted-foreground",
		bgColor: "bg-muted",
		barColor: "bg-muted",
	},
	1: {
		message: messages.risk_1,
		fallbackLabel: "Negligible",
		color: "text-green-700",
		bgColor: "bg-green-100",
		barColor: "bg-green-500",
	},
	2: {
		message: messages.risk_2,
		fallbackLabel: "Low",
		color: "text-lime-700",
		bgColor: "bg-lime-100",
		barColor: "bg-lime-500",
	},
	3: {
		message: messages.risk_3,
		fallbackLabel: "Medium",
		color: "text-yellow-700",
		bgColor: "bg-yellow-100",
		barColor: "bg-yellow-500",
	},
	4: {
		message: messages.risk_4,
		fallbackLabel: "High",
		color: "text-orange-700",
		bgColor: "bg-orange-100",
		barColor: "bg-orange-500",
	},
	5: {
		message: messages.risk_5,
		fallbackLabel: "Critical",
		color: "text-red-700",
		bgColor: "bg-red-100",
		barColor: "bg-red-500",
	},
};

/**
 * Process Scale - Used for Business Process classifications
 * Not rated → Insignificant → Low → Relevant → Important → Vital
 */
export const processScale: ImpactScaleConfig = {
	0: {
		message: messages.process_0,
		fallbackLabel: "Not rated",
		color: "text-muted-foreground",
		bgColor: "bg-muted",
		barColor: "bg-muted",
	},
	1: {
		message: messages.process_1,
		fallbackLabel: "Insignificant",
		color: "text-green-700",
		bgColor: "bg-green-100",
		barColor: "bg-green-500",
	},
	2: {
		message: messages.process_2,
		fallbackLabel: "Low",
		color: "text-lime-700",
		bgColor: "bg-lime-100",
		barColor: "bg-lime-500",
	},
	3: {
		message: messages.process_3,
		fallbackLabel: "Relevant",
		color: "text-yellow-700",
		bgColor: "bg-yellow-100",
		barColor: "bg-yellow-500",
	},
	4: {
		message: messages.process_4,
		fallbackLabel: "Important",
		color: "text-orange-700",
		bgColor: "bg-orange-100",
		barColor: "bg-orange-500",
	},
	5: {
		message: messages.process_5,
		fallbackLabel: "Vital",
		color: "text-red-700",
		bgColor: "bg-red-100",
		barColor: "bg-red-500",
	},
};

/**
 * Asset Scale - Used for Asset criticality
 * Not classified → Insignificant → Low → Medium → High → Business Critical
 */
export const assetScale: ImpactScaleConfig = {
	0: {
		message: messages.asset_0,
		fallbackLabel: "Not classified",
		color: "text-muted-foreground",
		bgColor: "bg-muted",
		barColor: "bg-muted",
	},
	1: {
		message: messages.asset_1,
		fallbackLabel: "Insignificant",
		color: "text-green-700",
		bgColor: "bg-green-100",
		barColor: "bg-green-500",
	},
	2: {
		message: messages.asset_2,
		fallbackLabel: "Low",
		color: "text-lime-700",
		bgColor: "bg-lime-100",
		barColor: "bg-lime-500",
	},
	3: {
		message: messages.asset_3,
		fallbackLabel: "Medium",
		color: "text-yellow-700",
		bgColor: "bg-yellow-100",
		barColor: "bg-yellow-500",
	},
	4: {
		message: messages.asset_4,
		fallbackLabel: "High",
		color: "text-orange-700",
		bgColor: "bg-orange-100",
		barColor: "bg-orange-500",
	},
	5: {
		message: messages.asset_5,
		fallbackLabel: "Business Critical",
		color: "text-red-700",
		bgColor: "bg-red-100",
		barColor: "bg-red-500",
	},
};

/** Available impact levels for iteration */
export const impactLevels: ImpactLevel[] = [0, 1, 2, 3, 4, 5];

/** Preset scale types */
export type ImpactScalePreset = "risk" | "process" | "asset";

/** Get scale by preset name */
export function getScale(preset: ImpactScalePreset): ImpactScaleConfig {
	switch (preset) {
		case "process":
			return processScale;
		case "asset":
			return assetScale;
		default:
			return riskScale;
	}
}