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resources/[tools]/nearest-postal-1.5.3/sv.lua

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+-- version check
+Citizen.CreateThread(function()
+    local vRaw = LoadResourceFile(GetCurrentResourceName(), 'version.json')
+    if vRaw and config.versionCheck then
+        local v = json.decode(vRaw)
+        local url = 'https://raw.githubusercontent.com/DevBlocky/nearest-postal/master/version.json'
+        PerformHttpRequest(url, function(code, res)
+            if code == 200 then
+                local rv = json.decode(res)
+                if rv.version ~= v.version then
+                    print(([[
+-------------------------------------------------------
+nearest-postal
+UPDATE: %s AVAILABLE
+CHANGELOG: %s
+-------------------------------------------------------
+]]):format(rv.version, rv.changelog))
+                end
+            else
+                print('nearest-postal was unable to check the version')
+            end
+        end, 'GET')
+    end
+end)
+
+-- add functionality to get postals server side from a vec3
+
+local postals = nil
+Citizen.CreateThread(function()
+    postals = LoadResourceFile(GetCurrentResourceName(), GetResourceMetadata(GetCurrentResourceName(), 'postal_file'))
+    postals = json.decode(postals)
+    for i, postal in ipairs(postals) do
+        postals[i] = {vec(postal.x, postal.y), code = postal.code}
+    end
+end)
+
+local function getPostalServer(coords)
+    while postals == nil do
+        Wait(1)
+    end
+    local _total = #postals
+    local _nearestIndex, _nearestD
+    coords = vec(coords[1], coords[2])
+
+    for i = 1, _total do
+        local D = #(coords - postals[i][1])
+        if not _nearestD or D < _nearestD then
+            _nearestIndex = i
+            _nearestD = D
+        end
+    end
+    local _code = postals[_nearestIndex].code
+    local nearest = {code = _code, dist = _nearestD}
+    return nearest or nil
+end
+
+exports('getPostalServer', function(coords)
+    return getPostalServer(coords)
+end)