local M = {}

local config = require('chai.config')

local provider_instances = {}

-- lazy loads providers of course
function M.get_provider(name)
    if provider_instances[name] ~= nil then
        return provider_instances[name]
    end

    if config.options.providers[name] == nil then
        error('unknown provider')
    end

    local provider_config = config.options.providers[name]

    local provider = require('chai.providers.' .. provider_config.type)

    local provider_instance = provider.init(provider_config)
    provider_instances[name] = provider_instance
    return provider_instance
end

return M