mirror of
https://github.com/logos-blockchain/lez-programs.git
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r4bbit
4651f28a05
The two views listed different tokens: swap rendered tokenList() (TOKENS_CONFIG verbatim, no chain check) while liquidity rendered resolveTokens(), which reads each id on-chain and silently drops any whose definition isn't a readable fungible token owned by the configured TokenProgram.
103 lines
4.2 KiB
JavaScript
103 lines
4.2 KiB
JavaScript
.pragma library
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// The app's one token list, shared by the swap and liquidity views so a token
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// never appears in one picker and not the other.
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//
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// Two sources have to be reconciled:
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// * tokenList() — TOKENS_CONFIG verbatim. Carries the display `symbol`,
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// which is the only place a symbol exists. No chain check.
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// * resolveTokens() — the same configured ids PLUS the user's persisted custom
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// ids, each read on-chain. Drops any id whose definition
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// isn't a readable fungible token owned by the configured
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// TokenProgram, and carries holdingId/balance. Ids come
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// back as canonical base58.
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//
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// Merging them keeps every configured token listed (a dropped one is marked
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// unselectable rather than vanishing), adds the custom tokens, and puts the
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// configured symbol back on rows that resolveTokens returned without one.
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// resolveTokens() echoes ids as base58, so only a base58-configured id can be
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// compared against a resolved row here. See merge().
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function isBase58Id(tokenId) {
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return /^[1-9A-HJ-NP-Za-km-z]{32,44}$/.test(String(tokenId || ""))
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}
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function configTokenFor(configTokens, definitionId) {
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for (var i = 0; i < configTokens.length; ++i) {
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if (String(configTokens[i].definitionId || "") === definitionId)
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return configTokens[i]
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}
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return null
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}
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// Rows are `{ definitionId, symbol, name, totalSupply, holdingId, balance }`,
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// plus `selectable: false` and a `code` on a configured token that did not
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// resolve. `unresolvedCode` is the reason code such a row carries.
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function merge(configTokens, resolvedTokens, unresolvedCode) {
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var config = configTokens || []
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var resolved = resolvedTokens || []
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// No resolution data at all (module unavailable, AMM not initialized, or the
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// call simply hasn't landed) is "unknown", not "everything is broken" —
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// greying out the whole list would make the view unusable. Fall back to the
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// configured list as-is, which is what the swap view always did.
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if (resolved.length === 0)
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return config.map(function(token) {
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return {
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"definitionId": String(token.definitionId || ""),
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"symbol": String(token.symbol || ""),
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"name": String(token.name || ""),
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"totalSupply": "0",
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"holdingId": "",
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"balance": "0"
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}
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})
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var rows = []
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var resolvedIds = {}
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for (var i = 0; i < resolved.length; ++i) {
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var row = resolved[i]
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var id = String(row.definitionId || "")
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var configured = configTokenFor(config, id)
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resolvedIds[id] = true
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rows.push({
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"definitionId": id,
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"symbol": configured ? String(configured.symbol || "") : "",
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// Prefer the configured name so both pickers agree; fall back to the
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// on-chain name for a custom token the config doesn't carry.
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"name": configured && configured.name
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? String(configured.name) : String(row.name || ""),
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"totalSupply": row.totalSupply,
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"holdingId": row.holdingId,
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"balance": row.balance
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})
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}
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for (var j = 0; j < config.length; ++j) {
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var token = config[j]
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var configuredId = String(token.definitionId || "")
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if (configuredId.length === 0 || resolvedIds[configuredId])
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continue
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// A hex-configured id can't be compared against the base58 rows above, so
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// synthesizing a row risks duplicating a token that did resolve. Skip it
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// and fall back to the pre-merge behaviour for that entry.
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if (!isBase58Id(configuredId))
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continue
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rows.push({
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"definitionId": configuredId,
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"symbol": String(token.symbol || ""),
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"name": String(token.name || ""),
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"totalSupply": "0",
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"holdingId": "",
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"balance": "0",
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// Listed but greyed out, with the reason on hover, instead of
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// vanishing with no explanation.
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"selectable": false,
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"code": unresolvedCode || "token_unresolved"
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})
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}
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return rows
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}
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