feat(match2): create m2->m1 mapping for tft (#5272)

feat(match2): create m2->m1 mapping for ftf

components/match2/wikis/tft/match_legacy.lua

@@ -0,0 +1,48 @@
+---
+-- @Liquipedia
+-- wiki=tft
+-- page=Module:Match/Legacy
+--
+-- Please see https://github.com/Liquipedia/Lua-Modules to contribute
+--
+
+local MatchLegacy = {}
+
+local DisplayHelper = require('Module:MatchGroup/Display/Helper')
+local Json = require('Module:Json')
+local String = require('Module:StringUtils')
+local Table = require('Module:Table')
+
+
+function MatchLegacy.storeMatch(match2)
+	MatchLegacy._storeMatch1(match2)
+end
+
+function MatchLegacy._storeMatch1(match2)
+	for gameIndex, game2 in ipairs(match2.match2games or {}) do
+		local match = Table.deepCopy(match2)
+		local g2extradata = Json.parseIfString(game2.extradata) or {}
+
+		match.date = game2.date
+		match.vod = game2.vod
+		match.dateexact = g2extradata.dateexact
+		match.finished = String.isNotEmpty(game2.winner)
+		match.staticid = match2.match2id .. '_' .. gameIndex
+
+		-- Handle extradata fields
+		local bracketData = Json.parseIfString(match2.match2bracketdata)
+		if type(bracketData) == 'table' and bracketData.inheritedheader then
+			match.header = (DisplayHelper.expandHeader(bracketData.inheritedheader) or {})[1]
+		end
+		local m1extradata = {}
+
+		m1extradata.map = game2.map
+		m1extradata.round = tostring(gameIndex)
+
+		match.extradata = mw.ext.LiquipediaDB.lpdb_create_json(m1extradata)
+
+		mw.ext.LiquipediaDB.lpdb_match('legacymatch_' .. match2.match2id .. '_' .. gameIndex, match)
+	end
+end
+
+return MatchLegacy