export type ConditionId =
	| "blinded"
	| "charmed"
	| "clumsy"
	| "concealed"
	| "confused"
	| "controlled"
	| "dazzled"
	| "deafened"
	| "doomed"
	| "drained"
	| "dying"
	| "enfeebled"
	| "exhaustion"
	| "fascinated"
	| "fatigued"
	| "fleeing"
	| "frightened"
	| "grabbed"
	| "grappled"
	| "hidden"
	| "immobilized"
	| "incapacitated"
	| "invisible"
	| "off-guard"
	| "paralyzed"
	| "petrified"
	| "poisoned"
	| "prone"
	| "quickened"
	| "restrained"
	| "sapped"
	| "sickened"
	| "slowed"
	| "slowed-pf2e"
	| "stunned"
	| "stupefied"
	| "unconscious"
	| "undetected"
	| "wounded";

export interface ConditionEntry {
	readonly id: ConditionId;
	readonly value?: number;
}

import type { RulesEdition } from "./rules-edition.js";

export interface ConditionDefinition {
	readonly id: ConditionId;
	readonly label: string;
	readonly description: string;
	readonly description5e: string;
	readonly descriptionPf2e?: string;
	readonly iconName: string;
	readonly color: string;
	/** When set, the condition only appears in these systems' pickers. */
	readonly systems?: readonly RulesEdition[];
	readonly valued?: boolean;
	/** Rule-defined maximum value for PF2e valued conditions. */
	readonly maxValue?: number;
}

export function getConditionDescription(
	def: ConditionDefinition,
	edition: RulesEdition,
): string {
	if (edition === "pf2e" && def.descriptionPf2e) return def.descriptionPf2e;
	return edition === "5e" ? def.description5e : def.description;
}

export const CONDITION_DEFINITIONS: readonly ConditionDefinition[] = [
	// ── Shared conditions (D&D + PF2e) ──
	{
		id: "blinded",
		label: "Blinded",
		description:
			"Can't see. Auto-fail sight checks. Attacks have Disadvantage; attacks against have Advantage.",
		description5e:
			"Can't see. Auto-fail sight checks. Attacks have Disadvantage; attacks against have Advantage.",
		descriptionPf2e:
			"Can't see. All terrain is difficult terrain. Auto-fail checks requiring sight. Immune to visual effects. Overrides dazzled.",
		iconName: "EyeOff",
		color: "neutral",
	},
	{
		id: "charmed",
		label: "Charmed",
		description:
			"Can't attack or target the charmer with harmful abilities. Charmer has Advantage on social checks.",
		description5e:
			"Can't attack or target the charmer with harmful abilities. Charmer has Advantage on social checks.",
		iconName: "Heart",
		color: "pink",
		systems: ["5e", "5.5e"],
	},
	{
		id: "deafened",
		label: "Deafened",
		description: "Can't hear. Auto-fail hearing checks.",
		description5e: "Can't hear. Auto-fail hearing checks.",
		descriptionPf2e:
			"Can't hear. Auto-critically-fail hearing checks. –2 status penalty to Perception. Auditory actions require DC 5 flat check. Immune to auditory effects.",
		iconName: "EarOff",
		color: "neutral",
	},
	{
		id: "exhaustion",
		label: "Exhaustion",
		description:
			"D20 Tests reduced by 2 \u00D7 exhaustion level.\nSpeed reduced by 5 ft. \u00D7 level.\nLong rest removes 1 level.\nDeath at 6 levels.",
		description5e:
			"L1: Disadvantage on ability checks\nL2: Speed halved\nL3: Disadvantage on attacks and saves\nL4: HP max halved\nL5: Speed 0\nL6: Death\nLong rest removes 1 level.",
		iconName: "BatteryLow",
		color: "amber",
		systems: ["5e", "5.5e"],
	},
	{
		id: "frightened",
		label: "Frightened",
		description:
			"Disadvantage on ability checks and attacks while source of fear is in line of sight. Can't willingly move closer to the source.",
		description5e:
			"Disadvantage on ability checks and attacks while source of fear is in line of sight. Can't willingly move closer to the source.",
		descriptionPf2e:
			"–X status penalty to all checks and DCs (X = value). Can't willingly approach the source.",
		iconName: "Siren",
		color: "orange",
		valued: true,
	},
	{
		id: "grappled",
		label: "Grappled",
		description:
			"Speed 0. Disadvantage on attacks against targets other than the grappler. Grappler can drag you (extra movement cost). Ends if grappler is Incapacitated or you leave their reach.",
		description5e:
			"Speed 0. Ends if grappler is Incapacitated or moved out of reach.",
		iconName: "Hand",
		color: "neutral",
		systems: ["5e", "5.5e"],
	},
	{
		id: "incapacitated",
		label: "Incapacitated",
		description:
			"Can't take Actions, Bonus Actions, or Reactions. Can't speak. Concentration is broken. Disadvantage on Initiative.",
		description5e: "Can't take Actions or Reactions.",
		iconName: "Ban",
		color: "gray",
		systems: ["5e", "5.5e"],
	},
	{
		id: "invisible",
		label: "Invisible",
		description:
			"Can't be seen. Advantage on Initiative. Not affected by effects requiring sight (unless caster sees you). Attacks have Advantage; attacks against have Disadvantage.",
		description5e:
			"Impossible to see without magic or special sense. Heavily Obscured. Attacks have Advantage; attacks against have Disadvantage.",
		descriptionPf2e:
			"Can't be seen except by special senses. Undetected to everyone. Can't be targeted except by effects that don't require sight.",
		iconName: "Ghost",
		color: "violet",
	},
	{
		id: "paralyzed",
		label: "Paralyzed",
		description:
			"Incapacitated. Can't move or speak. Auto-fail Str/Dex saves. Attacks against have Advantage. Hits within 5 ft. are critical.",
		description5e:
			"Incapacitated. Can't move or speak. Auto-fail Str/Dex saves. Attacks against have Advantage. Hits within 5 ft. are critical.",
		descriptionPf2e:
			"Can't act. Off-guard. Can only Recall Knowledge or use mental actions.",
		iconName: "ZapOff",
		color: "yellow",
	},
	{
		id: "petrified",
		label: "Petrified",
		description:
			"Turned to stone. Weight \u00D710. Incapacitated. Can't move or speak. Attacks against have Advantage. Auto-fail Str/Dex saves. Resistant to all damage. Immune to poison and disease.",
		description5e:
			"Turned to stone. Weight \u00D710. Incapacitated. Can't move or speak. Attacks against have Advantage. Auto-fail Str/Dex saves. Resistant to all damage. Immune to poison and disease.",
		descriptionPf2e:
			"Can't act. Can't sense anything. AC = 9. Hardness 8. Immune to most effects.",
		iconName: "Gem",
		color: "slate",
	},
	{
		id: "poisoned",
		label: "Poisoned",
		description: "Disadvantage on attack rolls and ability checks.",
		description5e: "Disadvantage on attack rolls and ability checks.",
		iconName: "Droplet",
		color: "green",
		systems: ["5e", "5.5e"],
	},
	{
		id: "prone",
		label: "Prone",
		description:
			"Can only crawl (costs extra movement). Disadvantage on attacks. Attacks within 5 ft. have Advantage; ranged attacks have Disadvantage. Standing up costs half movement.",
		description5e:
			"Can only crawl (costs extra movement). Disadvantage on attacks. Attacks within 5 ft. have Advantage; ranged attacks have Disadvantage. Standing up costs half movement.",
		descriptionPf2e:
			"Off-guard. –2 circumstance penalty to attack rolls. Only movement is Crawl and Stand. +1 circumstance bonus to AC vs. ranged attacks, –2 vs. melee.",
		iconName: "ArrowDown",
		color: "neutral",
	},
	{
		id: "restrained",
		label: "Restrained",
		description:
			"Speed is 0. Attacks have Disadvantage. Attacks against have Advantage. Disadvantage on Dex saves.",
		description5e:
			"Speed is 0. Attacks have Disadvantage. Attacks against have Advantage. Disadvantage on Dex saves.",
		descriptionPf2e:
			"Off-guard. Immobilized. Can't use any actions with the attack trait except to attempt to Escape.",
		iconName: "Link",
		color: "neutral",
	},
	{
		id: "sapped",
		label: "Sapped",
		description:
			"Disadvantage on next attack roll before the start of your next turn. (Weapon Mastery: Sap)",
		description5e: "",
		iconName: "ShieldMinus",
		color: "amber",
		systems: ["5.5e"],
	},
	{
		id: "slowed",
		label: "Slowed",
		description:
			"Speed reduced by 10 ft. until the start of your next turn. (Weapon Mastery: Slow)",
		description5e: "",
		iconName: "Snail",
		color: "sky",
		systems: ["5.5e"],
	},
	{
		id: "stunned",
		label: "Stunned",
		description:
			"Incapacitated (can't act or speak). Auto-fail Str/Dex saves. Attacks against have Advantage.",
		description5e:
			"Incapacitated. Can't move. Can speak only falteringly. Auto-fail Str/Dex saves. Attacks against have Advantage.",
		descriptionPf2e:
			"Can't act. Lose X total actions across turns, then the condition ends. Overrides slowed.",
		iconName: "Sparkles",
		color: "yellow",
		valued: true,
	},
	{
		id: "unconscious",
		label: "Unconscious",
		description:
			"Incapacitated. Speed 0. Can't move or speak. Unaware of surroundings. Drops held items, falls Prone. Auto-fail Str/Dex saves. Attacks against have Advantage. Hits within 5 ft. are critical.",
		description5e:
			"Incapacitated. Speed 0. Can't move or speak. Unaware of surroundings. Drops held items, falls Prone. Auto-fail Str/Dex saves. Attacks against have Advantage. Hits within 5 ft. are critical.",
		descriptionPf2e:
			"Can't act. Off-guard. Blinded. –4 status penalty to AC, Perception, and Reflex saves. Fall prone, drop items.",
		iconName: "Moon",
		color: "indigo",
	},
	// ── PF2e-only conditions ──
	{
		id: "clumsy",
		label: "Clumsy",
		description: "",
		description5e: "",
		descriptionPf2e:
			"–X status penalty to Dex-based checks and DCs, including AC, Reflex saves, and ranged attack rolls.",
		iconName: "Footprints",
		color: "amber",
		systems: ["pf2e"],
		valued: true,
	},
	{
		id: "concealed",
		label: "Concealed",
		description: "",
		description5e: "",
		descriptionPf2e:
			"DC 5 flat check for targeted attacks. Doesn't change which creatures can see you.",
		iconName: "CloudFog",
		color: "slate",
		systems: ["pf2e"],
	},
	{
		id: "confused",
		label: "Confused",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Off-guard. Can't Delay, Ready, or use reactions. Must Strike or cast offensive cantrips at random targets. DC 11 flat check when damaged to end.",
		iconName: "CircleHelp",
		color: "pink",
		systems: ["pf2e"],
	},
	{
		id: "controlled",
		label: "Controlled",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Another creature determines your actions. You gain no actions of your own.",
		iconName: "Drama",
		color: "pink",
		systems: ["pf2e"],
	},
	{
		id: "dazzled",
		label: "Dazzled",
		description: "",
		description5e: "",
		descriptionPf2e:
			"All creatures and objects are concealed to you. DC 5 flat check for targeted attacks requiring sight.",
		iconName: "Sun",
		color: "yellow",
		systems: ["pf2e"],
	},
	{
		id: "doomed",
		label: "Doomed",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Die at dying X (where X = 4 – doomed value instead of dying 4). Decreases by 1 on full night's rest.",
		iconName: "Skull",
		color: "red",
		systems: ["pf2e"],
		valued: true,
		maxValue: 3,
	},
	{
		id: "drained",
		label: "Drained",
		description: "",
		description5e: "",
		descriptionPf2e:
			"–X status penalty to Con-based checks and DCs. Lose X × level in max HP. Decreases by 1 on full night's rest.",
		iconName: "Droplets",
		color: "red",
		systems: ["pf2e"],
		valued: true,
	},
	{
		id: "dying",
		label: "Dying",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Unconscious. Make recovery checks at start of turn. At dying 4 (or 4 – doomed), you die.",
		iconName: "HeartPulse",
		color: "red",
		systems: ["pf2e"],
		valued: true,
		maxValue: 4,
	},
	{
		id: "enfeebled",
		label: "Enfeebled",
		description: "",
		description5e: "",
		descriptionPf2e:
			"–X status penalty to Str-based rolls and DCs, including melee attack and damage rolls and Athletics checks.",
		iconName: "TrendingDown",
		color: "amber",
		systems: ["pf2e"],
		valued: true,
	},
	{
		id: "fascinated",
		label: "Fascinated",
		description: "",
		description5e: "",
		descriptionPf2e:
			"–2 status penalty to Perception and skill checks. Can't use concentrate actions unless related to the fascination. Ends if hostile action is used against you or allies.",
		iconName: "Eye",
		color: "violet",
		systems: ["pf2e"],
	},
	{
		id: "fatigued",
		label: "Fatigued",
		description: "",
		description5e: "",
		descriptionPf2e:
			"–1 status penalty to AC and saves. Can't use exploration activities while traveling. Recover after a full night's rest.",
		iconName: "BatteryLow",
		color: "amber",
		systems: ["pf2e"],
	},
	{
		id: "fleeing",
		label: "Fleeing",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Must spend actions to move away from the source. Can't Delay or Ready.",
		iconName: "PersonStanding",
		color: "orange",
		systems: ["pf2e"],
	},
	{
		id: "grabbed",
		label: "Grabbed",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Off-guard. Immobilized. Manipulate actions require DC 5 flat check or are wasted.",
		iconName: "Hand",
		color: "neutral",
		systems: ["pf2e"],
	},
	{
		id: "hidden",
		label: "Hidden",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Known location but can't be seen. Off-guard to that creature. DC 11 flat check to target or miss.",
		iconName: "EyeOff",
		color: "slate",
		systems: ["pf2e"],
	},
	{
		id: "immobilized",
		label: "Immobilized",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Can't use any action with the move trait to change position.",
		iconName: "Anchor",
		color: "neutral",
		systems: ["pf2e"],
	},
	{
		id: "off-guard",
		label: "Off-Guard",
		description: "",
		description5e: "",
		descriptionPf2e: "–2 circumstance penalty to AC. (Formerly flat-footed.)",
		iconName: "ShieldOff",
		color: "amber",
		systems: ["pf2e"],
	},
	{
		id: "quickened",
		label: "Quickened",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Gain 1 extra action at the start of your turn each round (limited uses specified by the effect).",
		iconName: "Zap",
		color: "green",
		systems: ["pf2e"],
	},
	{
		id: "sickened",
		label: "Sickened",
		description: "",
		description5e: "",
		descriptionPf2e:
			"–X status penalty to all checks and DCs. Can't willingly ingest anything. Reduce by retching (Fortitude save).",
		iconName: "Droplet",
		color: "green",
		systems: ["pf2e"],
		valued: true,
	},
	{
		id: "slowed-pf2e",
		label: "Slowed",
		description: "",
		description5e: "",
		descriptionPf2e: "Lose X actions at the start of your turn each round.",
		iconName: "Snail",
		color: "sky",
		systems: ["pf2e"],
		valued: true,
		maxValue: 3,
	},
	{
		id: "stupefied",
		label: "Stupefied",
		description: "",
		description5e: "",
		descriptionPf2e:
			"–X status penalty to Int/Wis/Cha-based checks and DCs, including spell attack rolls and spell DCs. DC 5 + X flat check to cast spells or lose the spell.",
		iconName: "BrainCog",
		color: "violet",
		systems: ["pf2e"],
		valued: true,
	},
	{
		id: "undetected",
		label: "Undetected",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Location unknown. Must pick a square to target; DC 11 flat check. Attacker is off-guard against your attacks.",
		iconName: "Ghost",
		color: "violet",
		systems: ["pf2e"],
	},
	{
		id: "wounded",
		label: "Wounded",
		description: "",
		description5e: "",
		descriptionPf2e:
			"Next time you gain dying, add wounded value to dying value. Wounded 1 when you recover from dying; increases if already wounded.",
		iconName: "HeartCrack",
		color: "red",
		systems: ["pf2e"],
		valued: true,
		maxValue: 3,
	},
] as const;

export const VALID_CONDITION_IDS: ReadonlySet<string> = new Set(
	CONDITION_DEFINITIONS.map((d) => d.id),
);

export function getConditionsForEdition(
	edition: RulesEdition,
): readonly ConditionDefinition[] {
	return CONDITION_DEFINITIONS.filter(
		(d) => d.systems === undefined || d.systems.includes(edition),
	)
		.slice()
		.sort((a, b) => a.label.localeCompare(b.label));
}