package jp.juggler.subwaytooter.table

import android.content.ContentValues
import android.content.Context
import android.database.sqlite.SQLiteDatabase

import jp.juggler.subwaytooter.App1
import jp.juggler.subwaytooter.util.LogCategory
import android.support.v4.util.LruCache
import android.text.Spannable
import android.text.SpannableStringBuilder
import android.text.style.BackgroundColorSpan
import android.text.style.ForegroundColorSpan
import jp.juggler.subwaytooter.util.sanitizeBDI

import java.util.Locale

class AcctColor {
	
	var acct : String
	var color_fg : Int = 0
	var color_bg : Int = 0
	var nickname : String? = null
	var notification_sound : String? = null
	
	constructor(
		acct : String,
		nickname : String,
		color_fg : Int,
		color_bg : Int,
		notification_sound : String?
	) {
		this.acct = acct
		this.nickname = nickname
		this.color_fg = color_fg
		this.color_bg = color_bg
		this.notification_sound = notification_sound
	}
	
	private constructor(acct : String) {
		this.acct = acct
	}
	
	fun save(now : Long) {
		
		acct = acct.toLowerCase(Locale.ENGLISH)
		
		try {
			val cv = ContentValues()
			cv.put(COL_TIME_SAVE, now)
			cv.put(COL_ACCT, acct)
			cv.put(COL_COLOR_FG, color_fg)
			cv.put(COL_COLOR_BG, color_bg)
			cv.put(COL_NICKNAME, if(nickname == null) "" else nickname)
			cv.put(
				COL_NOTIFICATION_SOUND,
				if(notification_sound == null) "" else notification_sound
			)
			App1.database.replace(table, null, cv)
			mMemoryCache.remove(acct)
		} catch(ex : Throwable) {
			log.trace(ex)
			log.e(ex, "save failed.")
		}
		
	}
	
	companion object {
		
		private val log = LogCategory("AcctColor")
		
		const val table = "acct_color"
		private const val COL_TIME_SAVE = "time_save"
		private const val COL_ACCT = "ac" //@who@host ascii文字の大文字小文字は(sqliteにより)同一視される
		private const val COL_COLOR_FG = "cf" // 未設定なら0、それ以外は色
		private const val COL_COLOR_BG = "cb" // 未設定なら0、それ以外は色
		private const val COL_NICKNAME = "nick" // 未設定ならnullか空文字列
		private const val COL_NOTIFICATION_SOUND = "notification_sound" // 未設定ならnullか空文字列
		
		private const val CHAR_REPLACE : Char = 0x328A.toChar()
		
		private const val load_where = COL_ACCT + "=?"
		
		private val load_where_arg = object : ThreadLocal<Array<String?>>() {
			override fun initialValue() : Array<String?> {
				return arrayOfNulls(1)
			}
		}
		
		private val mMemoryCache = LruCache<String, AcctColor>(2048)
		
		fun onDBCreate(db : SQLiteDatabase) {
			log.d("onDBCreate!")
			db.execSQL(
				"create table if not exists " + table
					+ "(_id INTEGER PRIMARY KEY"
					+ "," + COL_TIME_SAVE + " integer not null"
					+ "," + COL_ACCT + " text not null"
					+ "," + COL_COLOR_FG + " integer"
					+ "," + COL_COLOR_BG + " integer"
					+ "," + COL_NICKNAME + " text "
					+ "," + COL_NOTIFICATION_SOUND + " text default ''"
					+ ")"
			)
			db.execSQL(
				"create unique index if not exists " + table + "_acct on " + table + "(" + COL_ACCT + ")"
			)
			db.execSQL(
				"create index if not exists " + table + "_time on " + table + "(" + COL_TIME_SAVE + ")"
			)
		}
		
		fun onDBUpgrade(db : SQLiteDatabase, oldVersion : Int, newVersion : Int) {
			if(oldVersion < 9 && newVersion >= 9) {
				onDBCreate(db)
				return
			}
			
			if(oldVersion < 17 && newVersion >= 17) {
				try {
					db.execSQL("alter table $table add column $COL_NOTIFICATION_SOUND text default ''")
				} catch(ex : Throwable) {
					log.trace(ex)
				}
				
			}
		}
		
		fun load(acctArg : String) : AcctColor {
			val acct = acctArg.toLowerCase(Locale.ENGLISH)
			val cached : AcctColor? = mMemoryCache.get(acct)
			if(cached != null) return cached
			
			try {
				val where_arg = load_where_arg.get()
				where_arg[0] = acct
				App1.database.query(table, null, load_where, where_arg, null, null, null)
					.use { cursor ->
						if(cursor.moveToNext()) {
							var idx : Int
							
							val ac = AcctColor(acct)
							
							idx = cursor.getColumnIndex(COL_COLOR_FG)
							ac.color_fg = if(cursor.isNull(idx)) 0 else cursor.getInt(idx)
							
							idx = cursor.getColumnIndex(COL_COLOR_BG)
							ac.color_bg = if(cursor.isNull(idx)) 0 else cursor.getInt(idx)
							
							idx = cursor.getColumnIndex(COL_NICKNAME)
							ac.nickname = if(cursor.isNull(idx)) null else cursor.getString(idx)
							
							idx = cursor.getColumnIndex(COL_NOTIFICATION_SOUND)
							ac.notification_sound =
								if(cursor.isNull(idx)) null else cursor.getString(idx)
							
							mMemoryCache.put(acct, ac)
							return ac
						}
						
					}
			} catch(ex : Throwable) {
				log.trace(ex)
				log.e(ex, "load failed.")
			}
			
			log.d(
				"lruCache size=%s,hit=%s,miss=%s",
				mMemoryCache.size(),
				mMemoryCache.hitCount(),
				mMemoryCache.missCount()
			)
			val ac = AcctColor(acct)
			mMemoryCache.put(acct, ac)
			return ac
		}
		
		fun getNickname(acct : String) : String {
			val ac = load(acct)
			val nickname = ac.nickname
			return if(nickname != null && nickname.isNotEmpty()) nickname.sanitizeBDI() else acct
		}
		
		fun getNotificationSound(acct : String) : String? {
			val ac = load(acct)
			val notification_sound = ac.notification_sound
			return if(notification_sound != null && notification_sound.isNotEmpty()) notification_sound else null
		}
		
		fun hasNickname(ac : AcctColor?) : Boolean {
			val nickname = ac?.nickname
			return nickname != null && nickname.isNotEmpty()
		}
		
		fun hasColorForeground(ac : AcctColor?) : Boolean {
			return ac != null && ac.color_fg != 0
		}
		
		fun hasColorBackground(ac : AcctColor?) : Boolean {
			return ac != null && ac.color_bg != 0
		}
		
		fun clearMemoryCache() {
			mMemoryCache.evictAll()
		}
		
		fun getStringWithNickname(
			context : Context,
			string_id : Int,
			acct : String
		) : CharSequence {
			val ac = load(acct)
			val nickname = ac.nickname
			val name = if(nickname == null || nickname.isEmpty()) acct else nickname.sanitizeBDI()
			val sb = SpannableStringBuilder(
				context.getString(
					string_id,
					String(charArrayOf(CHAR_REPLACE))
				)
			)
			for(i in sb.length - 1 downTo 0) {
				val c = sb[i]
				if(c != CHAR_REPLACE) continue
				sb.replace(i, i + 1, name)
				if(ac.color_fg != 0) {
					sb.setSpan(
						ForegroundColorSpan(ac.color_fg),
						i,
						i + name.length,
						Spannable.SPAN_EXCLUSIVE_EXCLUSIVE
					)
				}
				if(ac.color_bg != 0) {
					sb.setSpan(
						BackgroundColorSpan(ac.color_bg),
						i,
						i + name.length,
						Spannable.SPAN_EXCLUSIVE_EXCLUSIVE
					)
				}
			}
			return sb
		}
	}
	
}