ESX = exports['es_extended']:getSharedObject()

-- =====================
-- HELPERS
-- =====================
local function GetIdentifier(source)
    local xPlayer = ESX.GetPlayerFromId(source)
    if not xPlayer then return nil end
    return xPlayer.getIdentifier()
end

-- =====================
-- ITEM REGISTRATION
-- =====================
for itemName, itemConfig in pairs(Config.Items) do
    ESX.RegisterUsableItem(itemName, function(playerId)
        TriggerClientEvent('mercyv-id:useItem', playerId, itemName, itemConfig.type)
    end)
end

-- =====================
-- SERVER CALLBACK: SPIELERDATEN + LIZENZEN
-- =====================
ESX.RegisterServerCallback('mercyv-id:getPlayerData', function(source, cb, targetIdentifier)
    local identifier = targetIdentifier
    if not identifier then
        identifier = GetIdentifier(source)
    end

    if not identifier then
        print('[mercyv-id] FEHLER: Kein Identifier fuer Source ' .. tostring(source))
        return cb(nil)
    end

    print('[mercyv-id] Lade Daten fuer: ' .. identifier)

    -- Spielerdaten abfragen
    local userData = MySQL.query.await(
        'SELECT firstname, lastname, dateofbirth, sex, nationality, ssn, photo, phone_number, job, job_grade FROM users WHERE identifier = ?',
        { identifier }
    )

    if not userData or #userData == 0 then
        print('[mercyv-id] FEHLER: Keine Userdaten gefunden fuer: ' .. identifier)
        return cb(nil)
    end

    -- Lizenzen aus user_licenses (ESX Standard: drive, dmv, boat, etc.)
    local licenses = MySQL.query.await(
        'SELECT ul.type, l.label FROM user_licenses ul LEFT JOIN licenses l ON ul.type = l.type WHERE ul.owner = ?',
        { identifier }
    ) or {}

    -- Lizenzen aus mercyv_shop_licenses (Waffenlizenz etc. aus dem Shop)
    local shopLicenses = MySQL.query.await(
        'SELECT license_name FROM mercyv_shop_licenses WHERE identifier = ?',
        { identifier }
    ) or {}

    for _, sl in ipairs(shopLicenses) do
        -- Pruefen ob nicht schon in der Liste
        local found = false
        for _, lic in ipairs(licenses) do
            if lic.type == sl.license_name then
                found = true
                break
            end
        end
        if not found then
            licenses[#licenses + 1] = {
                type = sl.license_name,
                label = sl.license_name,
            }
        end
    end

    print('[mercyv-id] Gefunden: ' .. #licenses .. ' Lizenzen fuer ' .. identifier)

    cb({
        firstname = userData[1].firstname or '',
        lastname = userData[1].lastname or '',
        dateofbirth = userData[1].dateofbirth or '',
        sex = userData[1].sex or '',
        nationality = userData[1].nationality or '',
        ssn = userData[1].ssn or '',
        photo = userData[1].photo or '',
        phone_number = userData[1].phone_number or '',
        job = userData[1].job or '',
        job_grade = userData[1].job_grade or 0,
        licenses = licenses or {},
    })
end)

-- =====================
-- LIZENZ-CHECK: Hat der Spieler die noetige Lizenz?
-- =====================
-- Welche Lizenzen fuer welchen Kartentyp benoetigt werden
local requiredLicenses = {
    license = { 'drive', 'drivedmv', 'drive_bike', 'drive_bikedmv', 'drive_truck', 'drive_truckdmv', 'dmv', 'boat' },
    weapon = { 'weaponlicense' },
    -- id = nil -> Personalausweis braucht keine Lizenz
}

ESX.RegisterServerCallback('mercyv-id:hasLicense', function(source, cb, cardType)
    local required = requiredLicenses[cardType]
    if not required then
        -- Personalausweis braucht keine Lizenz
        return cb(true)
    end

    local identifier = GetIdentifier(source)
    if not identifier then return cb(false) end

    -- user_licenses pruefen
    local esxLicenses = MySQL.query.await(
        'SELECT type FROM user_licenses WHERE owner = ?',
        { identifier }
    ) or {}

    for _, lic in ipairs(esxLicenses) do
        for _, req in ipairs(required) do
            if lic.type == req then
                return cb(true)
            end
        end
    end

    -- mercyv_shop_licenses pruefen
    local shopLicenses = MySQL.query.await(
        'SELECT license_name FROM mercyv_shop_licenses WHERE identifier = ?',
        { identifier }
    ) or {}

    for _, sl in ipairs(shopLicenses) do
        for _, req in ipairs(required) do
            if sl.license_name == req then
                return cb(true)
            end
        end
    end

    cb(false)
end)

-- =====================
-- AUSWEIS AN NAHE SPIELER ZEIGEN
-- =====================
RegisterNetEvent('mercyv-id:showToNearby')
AddEventHandler('mercyv-id:showToNearby', function(cardData, cardType, nearbyPlayerIds)
    local source = source
    local xPlayer = ESX.GetPlayerFromId(source)
    if not xPlayer then return end

    local senderName = (cardData.firstname or '') .. ' ' .. (cardData.lastname or '')

    for _, targetId in ipairs(nearbyPlayerIds) do
        if targetId ~= source then
            TriggerClientEvent('mercyv-id:receiveCard', targetId, cardData, cardType, senderName)
        end
    end
end)