local valid_api_key = os.getenv("OLLAMA_API_KEY")

if not valid_api_key then
    ngx.status = ngx.HTTP_INTERNAL_SERVER_ERROR
    ngx.say("Internal Server Error: API key not set")
    return ngx.exit(ngx.HTTP_INTERNAL_SERVER_ERROR)
end

local headers = ngx.req.get_headers()
local api_key = headers["Authorization"]

if api_key ~= "Bearer " .. valid_api_key then
    ngx.status = ngx.HTTP_UNAUTHORIZED
    ngx.say("Unauthorized")
    return ngx.exit(ngx.HTTP_UNAUTHORIZED)
end