-- Guda Database Module
-- Handles saving and loading character data

local addon = Guda

local DB = {}
addon.Modules.DB = DB

-- Current player info
local playerName, playerRealm, playerFaction

-- Initialize database
function DB:Initialize()
-- Get player info
	playerName = UnitName("player")
	playerRealm = GetRealmName()
	playerFaction = UnitFactionGroup("player")

	local fullName = playerName .. "-" .. playerRealm

	-- Initialize global DB
	if not Guda_DB then
		Guda_DB = {
			version = addon.VERSION,
			characters = {},
		}
	end

	-- Initialize character DB
	if not Guda_CharDB then
		Guda_CharDB = {
			settings = {
				showBankInBags = true,
				showOtherChars = true,
				bagColumns = 10,
				bankBagColumns = 8,
				bankColumns = 10,
				sortMethod = "quality", -- quality, name, type
				iconSize = 40,
				iconSpacing = 0,
				iconFontSize = 12,
				showQualityBorderEquipment = true,
				showQualityBorderOther = true,
				showSearchBar = true,
				hoverBagline = false,
				hideFooter = false,
			},
		}
	end

	-- Ensure new settings exist for existing installations
	if Guda_CharDB.settings.hideFooter == nil then
		Guda_CharDB.settings.hideFooter = false
	end
	if Guda_CharDB.settings.hoverBagline == nil then
		Guda_CharDB.settings.hoverBagline = false
	end
	if Guda_CharDB.settings.showQuestBar == nil then
		Guda_CharDB.settings.showQuestBar = true
	end
	if not Guda_CharDB.settings.bagColumns then
		Guda_CharDB.settings.bagColumns = 10
	end
	if not Guda_CharDB.settings.bankBagColumns then
		Guda_CharDB.settings.bankBagColumns = 8
	end
	if not Guda_CharDB.settings.bankColumns then
		Guda_CharDB.settings.bankColumns = 10
	end
	if not Guda_CharDB.settings.iconSize then
		Guda_CharDB.settings.iconSize = 40
	end
	if not Guda_CharDB.settings.iconSpacing then
		Guda_CharDB.settings.iconSpacing = 0
	end
	if not Guda_CharDB.settings.iconFontSize then
		Guda_CharDB.settings.iconFontSize = 12
	end
	if Guda_CharDB.settings.showQualityBorderEquipment == nil then
		Guda_CharDB.settings.showQualityBorderEquipment = true
	end
	if Guda_CharDB.settings.showQualityBorderOther == nil then
		Guda_CharDB.settings.showQualityBorderOther = true
	end
	if Guda_CharDB.settings.showSearchBar == nil then
		Guda_CharDB.settings.showSearchBar = true
	end

	-- Initialize this character's data
	if not Guda_DB.characters[fullName] then
		local localizedClass, englishClass = UnitClass("player")
		Guda_DB.characters[fullName] = {
			name = playerName,
			realm = playerRealm,
			faction = playerFaction,
			class = localizedClass,
			classToken = englishClass, -- English uppercase token for RAID_CLASS_COLORS
			level = UnitLevel("player"),
			money = 0,
			bags = {},
			bank = {},
			equipped = {},  -- Add equipped items storage
			character = {}, -- Add character info storage
			lastUpdate = time(),
		}
	else
	-- Migration: Add classToken to existing characters
		local char = Guda_DB.characters[fullName]
		if not char.classToken then
			local localizedClass, englishClass = UnitClass("player")
			char.classToken = englishClass
			addon:Debug("Added classToken to existing character")
		end

		-- Migration: Add equipped and character fields if they don't exist
		if not char.equipped then
			char.equipped = {}
			addon:Debug("Added equipped field to existing character")
		end
		if not char.character then
			char.character = {}
			addon:Debug("Added character field to existing character")
		end
	end

	addon:Debug("Database initialized for %s", fullName)
end

-- Get current player's full name
function DB:GetPlayerFullName()
	return playerName .. "-" .. playerRealm
end

-- Get current character data
function DB:GetCurrentCharacter()
	local fullName = self:GetPlayerFullName()
	return Guda_DB.characters[fullName]
end

-- Get current character data (alias for compatibility)
function DB:GetCurrentCharacterData()
	return self:GetCurrentCharacter()
end

-- Save bag data
function DB:SaveBags(bagData)
	local char = self:GetCurrentCharacter()
	if char then
		char.bags = bagData
		char.lastUpdate = time()
		addon:Debug("Saved bag data")
	end
end

-- Save bank data
function DB:SaveBank(bankData)
	local char = self:GetCurrentCharacter()
	if char then
		char.bank = bankData
		char.lastUpdate = time()
		addon:Debug("Saved bank data")
	end
end

-- Save equipment data
function DB:SaveEquipment(equipmentData)
	local char = self:GetCurrentCharacter()
	if char then
		char.equipped = equipmentData.equipped
		char.character = equipmentData.character
		char.lastUpdate = time()
		addon:Debug("Saved equipment data")
	end
end

-- Save money
function DB:SaveMoney(copper)
	local char = self:GetCurrentCharacter()
	if char then
		char.money = copper
		char.level = UnitLevel("player")
		addon:Debug("Saved money: %d copper", copper)
	end
end

-- Get all characters (optionally filter by faction and/or realm)
function DB:GetAllCharacters(sameFactionOnly, currentRealmOnly)
	local chars = {}
	for fullName, data in pairs(Guda_DB.characters) do
		local factionMatch = not sameFactionOnly or data.faction == playerFaction
		local realmMatch = not currentRealmOnly or data.realm == playerRealm
		if factionMatch and realmMatch then
			table.insert(chars, {
				fullName = fullName,
				name = data.name,
				realm = data.realm,
				class = data.class,
				classToken = data.classToken, -- English uppercase token for colors
				level = data.level,
				faction = data.faction,
				money = data.money,
				lastUpdate = data.lastUpdate,
			})
		end
	end

	-- Sort by name
	table.sort(chars, function(a, b)
		return a.name < b.name
	end)

	return chars
end

-- Get character's bags
function DB:GetCharacterBags(fullName)
	local char = Guda_DB.characters[fullName]
	return char and char.bags or {}
end

-- Get character's bank
function DB:GetCharacterBank(fullName)
	local char = Guda_DB.characters[fullName]
	return char and char.bank or {}
end

-- Get character's equipped items
function DB:GetCharacterEquipped(fullName)
	local char = Guda_DB.characters[fullName]
	return char and char.equipped or {}
end

-- Get character info
function DB:GetCharacterInfo(fullName)
	local char = Guda_DB.characters[fullName]
	return char and char.character or {}
end

-- Get total money across all characters (optionally filter by faction and/or realm)
function DB:GetTotalMoney(sameFactionOnly, currentRealmOnly)
	local total = 0
	for fullName, data in pairs(Guda_DB.characters) do
		local factionMatch = not sameFactionOnly or data.faction == playerFaction
		local realmMatch = not currentRealmOnly or data.realm == playerRealm
		if factionMatch and realmMatch then
			total = total + (data.money or 0)
		end
	end
	return total
end

-- Get character setting
function DB:GetSetting(key)
-- SavedVariables may not be initialized yet when some UI OnLoad scripts run
	if not Guda_CharDB or not Guda_CharDB.settings then
		return nil
	end
	return Guda_CharDB.settings[key]
end

-- Set character setting
function DB:SetSetting(key, value)
-- Ensure tables exist even if called early
	if not Guda_CharDB then
		Guda_CharDB = { settings = {} }
	elseif not Guda_CharDB.settings then
		Guda_CharDB.settings = {}
	end
	Guda_CharDB.settings[key] = value
end

-- Cleanup old characters (not updated in 90 days)
function DB:CleanupOldCharacters()
	local cutoff = time() - (90 * 24 * 60 * 60) -- 90 days
	local removed = 0

	for fullName, data in pairs(Guda_DB.characters) do
		if data.lastUpdate and data.lastUpdate < cutoff then
			Guda_DB.characters[fullName] = nil
			removed = removed + 1
		end
	end

	if removed > 0 then
		addon:Print("Cleaned up %d old character(s)", removed)
	end
end