/**
 * Fetch the clean Hypixel API
 */

import { CleanPlayer, cleanPlayerResponse } from './cleaners/player'
import { chooseApiKey, HypixelResponse, sendApiRequest } from './hypixelApi'
import * as cached from './hypixelCached'
import { CleanBasicMember, CleanMemberProfile } from './cleaners/skyblock/member'
import { cleanSkyblockProfileResponse, CleanProfile, CleanBasicProfile, CleanFullProfile, CleanFullProfileBasicMembers } from './cleaners/skyblock/profile'
import { cleanSkyblockProfilesResponse } from './cleaners/skyblock/profiles'
import { debug } from '.'
import { queueUpdateDatabaseMember, queueUpdateDatabaseProfile } from './database'

export type Included = 'profiles' | 'player' | 'stats' | 'inventories'

// the interval at which the "last_save" parameter updates in the hypixel api, this is 3 minutes
export const saveInterval = 60 * 3 * 1000

// the highest level a minion can be
export const maxMinion = 11

/**
 *  Send a request to api.hypixel.net using a random key, clean it up to be more useable, and return it 
 */ 

export interface ApiOptions {
	mainMemberUuid?: string
	/** Only get the most basic information, like uuids and names */
	basic?: boolean
}

/** Sends an API request to Hypixel and cleans it up. */
export async function sendCleanApiRequest({ path, args }, included?: Included[], options?: ApiOptions): Promise<any> {
	const key = await chooseApiKey()
	const rawResponse = await sendApiRequest({ path, key, args })
	if (rawResponse.throttled) {
		// if it's throttled, wait a second and try again
		await new Promise(resolve => setTimeout(resolve, 1000))
		return await sendCleanApiRequest({ path, args }, included, options)
	}

	// clean the response
	return await cleanResponse({ path, data: rawResponse }, options ?? {})
}



async function cleanResponse({ path, data }: { path: string, data: HypixelResponse }, options: ApiOptions): Promise<any> {
	// Cleans up an api response
	switch (path) {
		case 'player': return await cleanPlayerResponse(data.player)
		case 'skyblock/profile': return await cleanSkyblockProfileResponse(data.profile, options)
		case 'skyblock/profiles': return await cleanSkyblockProfilesResponse(data.profiles)
	}
}

/* ----------------------------- */

export interface UserAny {
	user?: string
	uuid?: string
	username?: string
}

export interface CleanUser {
	player: CleanPlayer
	profiles?: CleanProfile[]
	activeProfile?: string
	online?: boolean
}


/**
 * Higher level function that requests the api for a user, and returns the cleaned response
 * This is safe to fetch many times because the results are cached!
 * @param included lets you choose what is returned, so there's less processing required on the backend
 * used inclusions: player, profiles
 */
export async function fetchUser({ user, uuid, username }: UserAny, included: Included[]=['player']): Promise<CleanUser> {
	if (!uuid) {
		// If the uuid isn't provided, get it
		uuid = await cached.uuidFromUser(user || username)
	}
	if (!uuid) {
		// the user doesn't exist.
		if (debug) console.log('error:', user, 'doesnt exist')
		return null
	}

	const includePlayers = included.includes('player')
	const includeProfiles = included.includes('profiles')

	let profilesData: CleanProfile[]
	let basicProfilesData: CleanBasicProfile[]
	let playerData: CleanPlayer

	if (includePlayers) {
		playerData = await cached.fetchPlayer(uuid)
		// if not including profiles, include lightweight profiles just in case
		if (!includeProfiles)
			basicProfilesData = playerData?.profiles
		if (playerData)
			playerData.profiles = undefined
	}
	if (includeProfiles) {
		profilesData = await cached.fetchSkyblockProfiles(uuid)
	}

	let activeProfile: CleanProfile = null
	let lastOnline: number = 0

	if (includeProfiles) {
		for (const profile of profilesData) {
			const member = profile.members.find(member => member.uuid === uuid)
			if (member.last_save > lastOnline) {
				lastOnline = member.last_save
				activeProfile = profile
			}
		}
	}
	return {
		player: playerData ?? null,
		profiles: profilesData ?? basicProfilesData,
		activeProfile: includeProfiles ? activeProfile?.uuid : undefined,
		online: includeProfiles ? lastOnline > (Date.now() - saveInterval): undefined
	}
}

/**
 * Fetch a CleanMemberProfile from a user and string
 * This is safe to use many times as the results are cached!
 * @param user A username or uuid
 * @param profile A profile name or profile uuid
 */
export async function fetchMemberProfile(user: string, profile: string): Promise<CleanMemberProfile> {
	const playerUuid = await cached.uuidFromUser(user)
	const profileUuid = await cached.fetchProfileUuid(user, profile)

	// if the profile doesn't have an id, just return
	if (!profileUuid) return null

	const player = await cached.fetchPlayer(playerUuid)

	const cleanProfile = await cached.fetchProfile(playerUuid, profileUuid) as CleanFullProfileBasicMembers

	const member = cleanProfile.members.find(m => m.uuid === playerUuid)

	// remove unnecessary member data
	const simpleMembers: CleanBasicMember[] = cleanProfile.members.map(m => {
		return {
			uuid: m.uuid,
			username: m.username,
			first_join: m.first_join,
			last_save: m.last_save,
			rank: m.rank
		}
	})

	cleanProfile.members = simpleMembers

	return {
		member: {
			// the profile name is in member rather than profile since they sometimes differ for each member
			profileName: cleanProfile.name,
			// add all the member data
			...member,
			// add all other data relating to the hypixel player, such as username, rank, etc
			...player
		},
		profile: cleanProfile
	}
}

/**
 * Fetches the Hypixel API to get a CleanFullProfile. This doesn't do any caching and you should use hypixelCached.fetchProfile instead
 * @param playerUuid The UUID of the Minecraft player
 * @param profileUuid The UUID of the Hypixel SkyBlock profile
 */
 export async function fetchMemberProfileUncached(playerUuid: string, profileUuid: string): Promise<CleanFullProfile> {
	const profile: CleanFullProfile = await sendCleanApiRequest(
		{
			path: 'skyblock/profile',
			args: { profile: profileUuid }
		},
		null,
		{ mainMemberUuid: playerUuid }
	)

	// queue updating the leaderboard positions for the member, eventually
	for (const member of profile.members)
		queueUpdateDatabaseMember(member, profile)
	queueUpdateDatabaseProfile(profile)

	return profile
}

/**
 * Fetches the Hypixel API to get a CleanProfile from its id. This doesn't do any caching and you should use hypixelCached.fetchBasicProfileFromUuid instead
 * @param playerUuid The UUID of the Minecraft player
 * @param profileUuid The UUID of the Hypixel SkyBlock profile
 */
 export async function fetchBasicProfileFromUuidUncached(profileUuid: string): Promise<CleanProfile> {
	const profile: CleanFullProfile = await sendCleanApiRequest(
		{
			path: 'skyblock/profile',
			args: { profile: profileUuid }
		},
		null,
		{ basic: true }
	)

	return profile
}


export async function fetchMemberProfilesUncached(playerUuid: string): Promise<CleanFullProfile[]> {
	const profiles: CleanFullProfile[] = await sendCleanApiRequest({
		path: 'skyblock/profiles',
		args: {
			uuid: playerUuid
		}},
		null,
		{
			// only the inventories for the main player are generated, this is for optimization purposes
			mainMemberUuid: playerUuid
		}
	)
	for (const profile of profiles) {
		for (const member of profile.members) {
			queueUpdateDatabaseMember(member, profile)
		}
		queueUpdateDatabaseProfile(profile)
	}
	return profiles
}