local require = require
local setmetatable = setmetatable


local _M = {}

_M.STRATEGY_TYPES = {
  "memory",
}

-- strategies that store cache data only on the node, instead of
-- cluster-wide. this is typically used to handle purge notifications
_M.LOCAL_DATA_STRATEGIES = {
  memory = true,
  [1]    = "memory",
}

local function require_strategy(name)
  return require("kong.plugins.proxy-cache.strategies." .. name)
end

return setmetatable(_M, {
  __call = function(_, opts)
    return require_strategy(opts.strategy_name).new(opts.strategy_opts)
  end
})