---@type vm
local vm       = require 'vm.vm'
local searcher = require 'core.searcher'
local files    = require 'files'
local util     = require 'utility'
local await    = require 'await'
local config   = require 'config'

local function getDefs(source, deep)
    local results = {}
    local lock = vm.lock('eachDef', source)
    if not lock then
        return results
    end

    await.delay()

    deep = config.config.intelliSense.searchDepth + (deep or 0)

    local clock = os.clock()
    local myResults, count = searcher.requestDefinition(source, vm.interface, deep)
    if DEVELOP and os.clock() - clock > 0.1 then
        log.warn('requestDefinition', count, os.clock() - clock, searcher.getUri(source), util.dump(source, { deep = 1 }))
    end
    vm.mergeResults(results, myResults)

    lock()

    return results
end

function vm.getDefs(source, deep)
    deep = deep or -999
    if searcher.isGlobal(source) then
        local key = searcher.getKeyName(source)
        if not key then
            return {}
        end
        return vm.getGlobalSets(key)
    else
        local cache =  vm.getCache('eachDef')[source]
        if not cache or cache.deep < deep then
            cache = getDefs(source, deep)
            cache.deep = deep
            vm.getCache('eachDef')[source] = cache
        end
        return cache
    end
end