Модуль:GetField

Для документации этого модуля может быть создана страница Модуль:GetField/doc

local p = {}

local cache = {}
local entryCache = {}
local BASE_USER = "IanComradeBot/"

local function get_module_name(pagePath)
    return "Module:" .. BASE_USER .. pagePath .. "/data"
end

local function load_cached_data(moduleName)
    local data = cache[moduleName]
    if data then
        return data
    end

    local ok, loaded = pcall(mw.loadData, moduleName)
    if not ok or not loaded then
        return nil
    end

    cache[moduleName] = loaded
    return loaded
end

local function parse_indexed_part(part)
    local key, idx = string.match(part, "^(.-)%[(%d+)%]$")
    if key then
        return key, tonumber(idx)
    end
    local num = tonumber(part)
    if num then
        return nil, num
    end
    return part, nil
end

local function get_by_path(tbl, path)
    if not tbl or path == "" then return nil end
    local cur = tbl
    for part in string.gmatch(path, "([^%.]+)") do
        local key, idx = parse_indexed_part(part)
        if key and key ~= "" then
            if type(cur) ~= "table" then return nil end
            local nextCur = cur[key]
            if nextCur == nil then
                nextCur = cur["!type:" .. key]
            end
            cur = nextCur
        end
        if idx then
            if type(cur) ~= "table" then return nil end
            cur = cur[idx]
        end
        if cur == nil then return nil end
    end
    return cur
end

local function format_value(v)
    local okJson, json = pcall(mw.text.jsonEncode, v)
    if okJson and json == "null" then
        return "null"
    end

    if v == nil then return "" end

    local t = type(v)
    if t == "string" or t == "number" or t == "boolean" then
        return tostring(v)
    elseif t == "table" then
        local ok, json2 = pcall(mw.text.jsonEncode, v)
        if ok and json2 then
            return json2
        end
        return ""
    else
        return tostring(v)
    end
end

local function to_nowiki(v)
    return "<nowiki>" .. v .. "</nowiki>"
end

local function is_array(tbl)
    local max = 0
    local count = 0
    for k in pairs(tbl) do
        if type(k) ~= "number" then
            return false
        end
        if k > max then max = k end
        count = count + 1
    end
    return count > 0 and max == count
end

local function deep_copy(src)
    local dst = {}
    for k, v in pairs(src) do
        if type(v) == "table" then
            dst[k] = deep_copy(v)
        else
            dst[k] = v
        end
    end
    return dst
end

local function deep_merge(dst, src)
    for k, v in pairs(src) do
        if type(v) == "table" and type(dst[k]) == "table" then
            deep_merge(dst[k], v)
        elseif type(v) == "table" then
            dst[k] = deep_copy(v)
        else
            dst[k] = v
        end
    end
end

local function resolve_entry(data, id)
    if type(data) ~= "table" then
        return nil
    end

    if id and id ~= "" then
        local direct = data[id]
        if direct ~= nil then
            return direct
        end

        local idsTable = data.id
        if type(idsTable) == "table" then
            local specific = idsTable[id]
            if type(specific) == "table" then
                local base = data["default"]
                if type(base) == "table" then
                    local merged = deep_copy(base)
                    deep_merge(merged, specific)
                    return merged
                end
                return deep_copy(specific)
            end
        end
    end

    local base = data["default"]
    if type(base) == "table" then
        return deep_copy(base)
    end
    return nil
end

local function contains_target(v, target)
    if type(v) == "table" then
        if is_array(v) then
            for _, item in ipairs(v) do
                if tostring(item) == target then
                    return true
                end
            end
            return false
        end

        for _, item in pairs(v) do
            if tostring(item) == target then
                return true
            end
        end
        return false
    end

    return tostring(v) == target
end

local function find_matching_ids(idsTable, keyPath, searchValue)
    local target = tostring(searchValue)
    local matches = {}

    for idKey, entry in pairs(idsTable) do
        if type(entry) == "table" then
            local v = get_by_path(entry, keyPath)
            if v ~= nil and contains_target(v, target) then
                matches[#matches + 1] = idKey
            end
        end
    end

    return matches
end

local function preprocess_or_return(frame, text)
    if type(frame.preprocess) == "function" then
        return frame:preprocess(text)
    end
    return text
end

local function get_field_loose(entry, fieldId)
    local value = entry[fieldId]
    if value ~= nil then return value end
    if fieldId == "" then return nil end

    local first = string.sub(fieldId, 1, 1)
    local tail = string.sub(fieldId, 2)
    value = entry[string.lower(first) .. tail]
    if value ~= nil then return value end

    return entry[string.upper(first) .. tail]
end

function p.findInGenerator(frame)
    local args = frame.args or {}
    local searchId = args[1] or ""
    local kind = (args[2] or ""):lower()
    local fieldId = args[3] or ""

    if searchId == "" or fieldId == "" then
        return ""
    end
    if kind ~= "prototype" and kind ~= "component" then
        return ""
    end

    local storeName = (kind == "prototype") and "prototype_store.json" or "component_store.json"
    local moduleName = get_module_name(storeName)
    local data = load_cached_data(moduleName)
    if not data then
        return ""
    end

    local entry = data[searchId]
    if type(entry) ~= "table" then
        return ""
    end

    local value = get_field_loose(entry, fieldId)
    if value == nil then
        return ""
    end

    local out = {}
    local t = type(value)
    if t == "table" then
        for _, v in ipairs(value) do
            out[#out + 1] = v
        end
    else
        out[1] = value
    end

    return mw.text.jsonEncode(out)
end

function p.flattenField(frame)
    local args = frame.args or {}
    local id = args[1] or ""
    local pagePath = args[2] or ""
    if id == "" or pagePath == "" then return "" end

    local moduleName = get_module_name(pagePath)
    local data = load_cached_data(moduleName)
    if not data then return "" end

    local entry = resolve_entry(data, id) or {}

    if type(entry) ~= "table" then return "" end

    local parts = {}
    local function append_table_json(key, value)
        local ok, json = pcall(mw.text.jsonEncode, value)
        if ok and json then
            parts[#parts + 1] = key .. "=" .. to_nowiki(json)
        end
    end

    local function walk(tbl, prefix)
        local keys = {}
        for k in pairs(tbl) do keys[#keys + 1] = k end
        table.sort(keys, function(a, b) return tostring(a) < tostring(b) end)
        for _, k in ipairs(keys) do
            local v = tbl[k]
            local kStr = tostring(k)
            local key = (prefix == "" and kStr or prefix .. "." .. kStr)
            if type(v) == "table" then
                if next(v) == nil then
                else
                    append_table_json(key, v)
                    if not is_array(v) then
                        walk(v, key)
                    end
                end
            else
                parts[#parts + 1] = key .. "=" .. tostring(v)
            end
        end
    end

    walk(entry, "")

    return table.concat(parts, "|")
end

function p.get(frame)
    local args = frame.args or {}
    local id = args[1] or ""
    local pagePath = args[2] or ""
    local keyPath = args[3] or ""

    if pagePath == "" then return "" end

    local moduleName = get_module_name(pagePath)
    local data = load_cached_data(moduleName)
    if not data then return "" end

    local entryKey = moduleName .. "|" .. (id ~= "" and id or "default")
    local entry = entryCache[entryKey]
    if not entry then
        entry = resolve_entry(data, id)
        entryCache[entryKey] = entry
    end
    if entry == nil then return "" end

    if keyPath == "" then
        return format_value(entry)
    end

    local value = get_by_path(entry, keyPath)
    return format_value(value)
end

function p.getId(frame)
    local args = frame.args or {}
    local searchValue = args[1] or ""
    local pagePath = args[2] or ""
    local keyPath = args[3] or ""

    if searchValue == "" or pagePath == "" or keyPath == "" then
        return ""
    end

    local moduleName = get_module_name(pagePath)
    local data = load_cached_data(moduleName)
    if not data then return "[]" end

    local idsTable = data.id
    if type(idsTable) ~= "table" then
        return ""
    end

    local matches = find_matching_ids(idsTable, keyPath, searchValue)

    if #matches == 0 then
        return ""
    end

    local ok, json = pcall(mw.text.jsonEncode, matches)
    if ok and json then
        return json
    end

    return ""
end

function p.getTplId(frame)
    local args = frame.args or {}
    local searchValue = args[1] or ""
    local pagePath = args[2] or ""
    local keyPath = args[3] or ""
    local tplPath = mw.text.unstripNoWiki(args[4] or "")

    if searchValue == "" or pagePath == "" or keyPath == "" or tplPath == "" then
        return ""
    end

    local moduleName = get_module_name(pagePath)
    local data = load_cached_data(moduleName)
    if not data then return "" end

    local idsTable = data.id
    if type(idsTable) ~= "table" then
        return ""
    end

    local matches = find_matching_ids(idsTable, keyPath, searchValue)

    if #matches == 0 then
        return ""
    end

    local out = {}
    for _, idKey in ipairs(matches) do
        local tpl = p.getTpl({ args = { idKey, pagePath, tplPath } })
        if tpl ~= "" then
            out[#out + 1] = tpl
        end
    end

    if #out == 0 then
        return ""
    end

    local result = table.concat(out, " ")
    return preprocess_or_return(frame, result)
end

function p.getTpl(frame)
    local args = frame.args or {}
    local id = args[1] or ""
    local pagePath = args[2] or ""
    local tplPath = args[3] or ""

    if id == "" or pagePath == "" or tplPath == "" then
        return ""
    end

    local extra = p.flattenField({ args = { id, pagePath } }) or ""
    local tplStr = "{{" .. tostring(tplPath) .. "|id=" .. tostring(id)
    if extra ~= "" then
        tplStr = tplStr .. "|" .. extra
    end
    tplStr = tplStr .. "}}"

    return preprocess_or_return(frame, tplStr)
end

function p.getTplGenerator(frame)
    local args = frame.args or {}
    local searchId = args[1] or ""
    local kind = (args[2] or ""):lower()
    local generatorId = args[3] or ""
    local tplPath = args[4] or ""

    if searchId == "" or generatorId == "" or tplPath == "" then
        return ""
    end
    if kind ~= "prototype" and kind ~= "component" then
        return ""
    end

    local dir = (kind == "prototype") and "prototype/" or "component/"
    local pagePath = dir .. generatorId .. ".json"

    local idsJson = p.findInGenerator({ args = { searchId, kind, generatorId } })
    local ok, ids = pcall(mw.text.jsonDecode, idsJson or "")
    if not ok or type(ids) ~= "table" or #ids == 0 then
        return ""
    end

    local out = {}
    for _, id in ipairs(ids) do
        local tpl = p.getTpl({ args = { id, pagePath, tplPath } })
        if tpl ~= "" then
            out[#out + 1] = tpl
        end
    end

    local result = table.concat(out, " ")
    return preprocess_or_return(frame, result)
end

function p.getGenerator(frame)
    local args = frame.args or {}
    local searchId = args[1] or ""
    local kind = (args[2] or ""):lower()
    local generatorId = args[3] or ""

    if searchId == "" or generatorId == "" then
        return ""
    end
    if kind ~= "prototype" and kind ~= "component" then
        return ""
    end

    local idsJson = p.findInGenerator({ args = { searchId, kind, generatorId } })
    local ok, ids = pcall(mw.text.jsonDecode, idsJson or "")
    if not ok or type(ids) ~= "table" or #ids == 0 then
        return ""
    end

    local okOut, outJson = pcall(mw.text.jsonEncode, ids)
    if okOut and outJson then
        return outJson
    end

    return ""
end

function p.hasComp(frame)
    local args = frame.args or {}
    local entityId = args[1] or ""
    local compName = args[2] or ""

    if entityId == "" or compName == "" then
        return "false"
    end

    local moduleName = get_module_name("component.json")
    local data = load_cached_data(moduleName)
    if not data then
        return "false"
    end

    if type(data) ~= "table" then
        return "false"
    end

    local entry = data[entityId]
    if type(entry) ~= "table" then
        return "false"
    end

    local target = tostring(compName)
    for _, v in ipairs(entry) do
        if tostring(v) == target then
            return "true"
        end
    end

    return "false"
end

return p