import {
  CLASSES,
  type BaseClassId,
  type ClassId,
  type CoaClassId,
} from "../app/characterCatalog";
import liveData from "./coaLiveData.generated.json";

export type CoaEssenceType = "ability" | "talent";
export type CoaEntryType = "Ability" | "Talent";
export type CoaNodeType = "SpendCircle" | "SpendSquare" | "SpendHex";

export interface CoaLiveSource {
  readonly builderUrl: string;
  readonly databaseClassUrl: string;
  readonly realmId: number;
  readonly realmSlug: string;
  readonly realmName: string;
  readonly maximumLevel: number;
  readonly schemaVersion: Readonly<Record<string, number>>;
  readonly synchronizedAt: string;
  readonly spellDbcPath: string;
  readonly supportDbcDirectory: string;
}

export interface CoaLiveCounts {
  readonly classes: number;
  readonly tabs: number;
  readonly entries: number;
  readonly abilityEntries: number;
  readonly talentEntries: number;
  readonly rankedNodeSpells: number;
  readonly classSpellRows: number;
  readonly classicClassSpellRows: number;
  readonly coaClassSpellRows: number;
  readonly uniqueSpells: number;
  readonly dbcMatchedSpells: number;
  readonly progressionChains: number;
  readonly classicProgressionChains: number;
  readonly classicBaseProgressionChains: number;
  readonly coaProgressionChains: number;
  readonly progressionRanks: number;
  readonly liveTooltips: number;
}

export interface CoaClassTab {
  readonly tabId: number;
  readonly tabName: string;
  readonly sortOrder: number;
}

export interface CoaLiveClass {
  readonly classId: number;
  readonly className: string;
  readonly maxTalentEssence: number;
  readonly maxAbilityEssence: number;
  readonly tabs: readonly CoaClassTab[];
}

export interface CoaRankDescription {
  readonly rank: number;
  readonly spellId: number;
  readonly description: string;
  readonly liveTooltip?: string;
}

export interface CoaTreeEntry {
  readonly id: number;
  readonly classId: number;
  readonly tabId: number;
  readonly x: number;
  readonly y: number;
  readonly name: string;
  readonly iconBasename: string;
  readonly nodeType: CoaNodeType;
  readonly entryType: CoaEntryType;
  readonly isPassive: boolean;
  readonly maxPoints: number;
  readonly aeCost: number;
  readonly teCost: number;
  readonly requiredClassPoints: number;
  readonly requiredSpecPoints: number;
  readonly requiredIds: readonly number[];
  readonly connectedNodeIds: readonly number[];
  readonly requiredLevel: number;
  readonly isStartingNode: boolean;
  readonly flags: number;
  readonly group: number;
  readonly sortOrder: number;
  readonly description: string;
  readonly rankDescriptions: readonly CoaRankDescription[];
}

export interface CoaDbcEffect {
  readonly index: number;
  readonly effectType: number;
  readonly auraType: number;
  readonly basePoints: number;
  readonly dieSides: number;
  readonly pointsPerLevel: number;
  readonly mechanic: number;
  readonly implicitTargetA: number;
  readonly implicitTargetB: number;
  readonly radiusIndex: number;
  readonly radius: number;
  readonly periodMs: number;
  readonly valueMultiplier: number;
  readonly chainTargets: number;
  readonly itemType: number;
  readonly miscValue: number;
  readonly miscValueB: number;
  readonly triggerSpellId: number;
  readonly pointsPerCombo: number;
  readonly coefficient: number;
}

export interface CoaDbcSpell {
  readonly id: number;
  readonly name: string;
  readonly rankText: string;
  readonly description: string;
  readonly categoryId: number;
  readonly dispelType: number;
  readonly mechanic: number;
  readonly attributes: readonly number[];
  readonly castTimeIndex: number;
  readonly castTimeMs: number;
  readonly recoveryTimeMs: number;
  readonly categoryRecoveryTimeMs: number;
  readonly interruptFlags: number;
  readonly auraInterruptFlags: number;
  readonly channelInterruptFlags: number;
  readonly procFlags: number;
  readonly procChance: number;
  readonly procCharges: number;
  readonly maxLevel: number;
  readonly baseLevel: number;
  readonly spellLevel: number;
  readonly durationIndex: number;
  readonly durationMs: number;
  readonly powerType: number;
  readonly powerCost: number;
  readonly powerCostPerLevel: number;
  readonly powerCostPerSecond: number;
  readonly powerCostPerSecondPerLevel: number;
  readonly rangeIndex: number;
  readonly rangeMin: number;
  readonly rangeMax: number;
  readonly projectileSpeed: number;
  readonly stackAmount: number;
  readonly equippedItemClass: number;
  readonly equippedItemSubclassMask: number;
  readonly equippedItemInventoryMask: number;
  readonly iconId: number;
  readonly powerCostPercentage: number;
  readonly startRecoveryCategory: number;
  readonly startRecoveryTimeMs: number;
  readonly maximumTargets: number;
  readonly damageClass: number;
  readonly preventionType: number;
  readonly schoolMask: number;
  readonly runeCostId: number;
  readonly powerDisplayId: number;
  readonly effects: readonly CoaDbcEffect[];
}

export interface CoaLiveSpell {
  readonly id: number;
  readonly classIds: readonly number[];
  readonly name: string;
  readonly iconBasename: string;
  readonly level: number;
  readonly rank: string;
  readonly description: string;
  readonly liveTooltip?: string;
  readonly sourceIds: readonly number[];
  readonly advancementType: string;
  readonly advancementTabId: number;
  readonly talented: boolean;
  readonly excluded: boolean;
  readonly dbc?: CoaDbcSpell;
}

export interface CoaProgressionRank {
  readonly spellId: number;
  readonly rank: number;
  readonly level: number;
}

export interface CoaProgressionChain {
  readonly id: string;
  readonly classId: number;
  readonly name: string;
  readonly iconBasename: string;
  readonly talented: boolean;
  readonly advancementType: string;
  readonly trainer: boolean;
  readonly ranks: readonly CoaProgressionRank[];
}

interface CoaLiveData {
  readonly source: CoaLiveSource;
  readonly counts: CoaLiveCounts;
  readonly classes: readonly CoaLiveClass[];
  readonly entries: readonly CoaTreeEntry[];
  readonly progressionChains: readonly CoaProgressionChain[];
  readonly spells: readonly CoaLiveSpell[];
}

const data = liveData as unknown as CoaLiveData;
const COA_CLASS_ID_BY_DBC_ID = Object.freeze(Object.fromEntries(
  CLASSES
    .filter((definition) => definition.mode === "conquest")
    .map((definition) => [definition.dbcId, definition.id]),
)) as Readonly<Record<number, CoaClassId>>;
const CLASSIC_CLASS_ID_BY_DBC_ID = Object.freeze(Object.fromEntries(
  CLASSES
    .filter((definition) => definition.mode === "classic")
    .map((definition) => [definition.dbcId, definition.id]),
)) as Readonly<Record<number, BaseClassId>>;
const SPELL_BY_ID = new Map(data.spells.map((spell) => [spell.id, spell]));
const ENTRY_BY_ID = new Map(data.entries.map((entry) => [entry.id, entry]));
const CLASS_BY_DBC_ID = new Map(data.classes.map((definition) => [definition.classId, definition]));

export const COA_LIVE_SOURCE = data.source;
export const COA_LIVE_COUNTS = data.counts;
export const COA_LIVE_CLASSES = data.classes;
export const COA_TREE_ENTRIES = data.entries;
export const COA_PROGRESSION_CHAINS = data.progressionChains.filter((chain) => (
  COA_CLASS_ID_BY_DBC_ID[chain.classId] !== undefined
));
export const ASCENSION_CLASSIC_PROGRESSION_CHAINS = data.progressionChains.filter((chain) => (
  CLASSIC_CLASS_ID_BY_DBC_ID[chain.classId] !== undefined
));

export function isCoaClassId(classId: ClassId): classId is CoaClassId {
  return CLASSES.find((definition) => definition.id === classId)?.mode === "conquest";
}

export function coaClassIdFromDbcId(dbcId: number): CoaClassId | null {
  return COA_CLASS_ID_BY_DBC_ID[dbcId] ?? null;
}

export function ascensionClassicClassIdFromDbcId(dbcId: number): BaseClassId | null {
  return CLASSIC_CLASS_ID_BY_DBC_ID[dbcId] ?? null;
}

export function coaClassDefinition(classId: CoaClassId): CoaLiveClass {
  const dbcId = CLASSES.find((definition) => definition.id === classId)?.dbcId ?? 0;
  const definition = CLASS_BY_DBC_ID.get(dbcId);
  if (!definition) throw new Error(`Missing live CoA definition for ${classId}`);
  return definition;
}

export function coaTreeEntryById(entryId: number): CoaTreeEntry | null {
  return ENTRY_BY_ID.get(entryId) ?? null;
}

export function coaEntriesForClass(classId: CoaClassId): readonly CoaTreeEntry[] {
  const dbcId = CLASSES.find((definition) => definition.id === classId)?.dbcId ?? 0;
  return data.entries.filter((entry) => entry.classId === dbcId);
}

export function coaEntriesForTab(classId: CoaClassId, tabId: number): readonly CoaTreeEntry[] {
  return coaEntriesForClass(classId).filter((entry) => entry.tabId === tabId);
}

export function coaSpellById(spellId: number): CoaLiveSpell | null {
  return SPELL_BY_ID.get(spellId) ?? null;
}

export function coaProgressionForClass(classId: CoaClassId): readonly CoaProgressionChain[] {
  const dbcId = CLASSES.find((definition) => definition.id === classId)?.dbcId ?? 0;
  return data.progressionChains.filter((chain) => chain.classId === dbcId);
}

export function ascensionProgressionForClass(classId: BaseClassId): readonly CoaProgressionChain[] {
  const dbcId = CLASSES.find((definition) => definition.id === classId)?.dbcId ?? 0;
  return ASCENSION_CLASSIC_PROGRESSION_CHAINS.filter((chain) => chain.classId === dbcId);
}

export function coaRankForLevel(
  chain: CoaProgressionChain,
  playerLevel: number,
): CoaProgressionRank {
  return [...chain.ranks]
    .filter((rank) => rank.level <= playerLevel)
    .sort((left, right) => right.rank - left.rank)[0]
    ?? chain.ranks[0];
}

export function coaEntryRank(
  entry: CoaTreeEntry,
  rank: number,
): CoaRankDescription | null {
  const normalized = Math.max(1, Math.min(entry.maxPoints, Math.trunc(rank)));
  return entry.rankDescriptions.find((description) => description.rank === normalized)
    ?? entry.rankDescriptions[normalized - 1]
    ?? null;
}

export function coaIconUrl(icon: string): string {
  return `/assets/ui/spells/${(icon || "inv_misc_questionmark").toLowerCase()}.png`;
}