[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_105":106,"_107":108},"routes/embed.x.$handle.$name.$",{"_9":10,"_11":12,"_13":14,"_15":16,"_17":18,"_19":20,"_21":-5},"handle","colel","name","newsletter-signup","path","filter.ts","project",{"_22":45,"_11":12,"_33":46,"_47":-5,"_48":42,"_49":50,"_51":50,"_52":53,"_54":-5,"_55":56,"_57":-5,"_58":42,"_59":-5,"_60":-5,"_61":62,"_63":64,"_65":66,"_67":68,"_69":70,"_71":-5,"_72":73,"_74":73,"_75":76,"_77":76,"_78":76,"_79":73,"_80":73,"_81":82,"_83":84,"_85":86,"_87":42},"file",{"_22":23,"_11":14,"_24":25,"_26":-5,"_27":28,"_29":30,"_31":32,"_33":34,"_35":36,"_37":38,"_39":40,"_41":42,"_43":-5,"_13":44},"permalink","https://www.val.town/x/colel/newsletter-signup/code/filter.ts","extension","id","98787bc4-40f7-4c14-8363-b75858353a21","fileId","1685ed6a-9b00-11f1-bb89-1607ee4eb77e","parentId","branchId","d72d2544-fed2-11f0-a1dd-42dde27851f2","branchVersion",41,"latest",true,"createdAt",["D",1787056066921],"version",2,"fileType","script","content","/**\n * Per-receiver notification filters.\n *\n * A filter is plain text, one rule per line, so it round-trips through a textarea with no\n * client-side JS and stays readable in the database:\n *\n * plan = enterprise # equals (case-insensitive, numeric-aware)\n * company exists # field was provided and isn't empty\n * phone missing # field absent / null / empty\n * country in US, CA, MX # any of\n * email ~ @acme.com # contains\n * seats >= 10 # numeric comparison\n * # comments and blank lines are ignored\n *\n * Paths are resolved against the signup's `details` object, plus `email` at the top level.\n * Dot/bracket paths reach into nested data: `utm.source`, `answers[0].value`.\n *\n * Design decisions worth knowing:\n * - A filter that fails to parse FAILS OPEN (the notification is still sent, and the error is\n * surfaced in the dashboard). Losing a signup alert to a typo is worse than an extra push.\n * - Array values match if ANY element matches, so `interests = ai` works on `[\"ai\",\"design\"]`.\n * - `!=` is also true when the field is absent. Pair it with `exists` if you need presence.\n * - `false` and `0` count as present — they were deliberately submitted.\n */\n\nexport type Op =\n | \"exists\"\n | \"missing\"\n | \"eq\"\n | \"neq\"\n | \"contains\"\n | \"in\"\n | \"gt\"\n | \"gte\"\n | \"lt\"\n | \"lte\";\n\nexport type MatchMode = \"all\" | \"any\";\n\nexport interface Rule {\n path: string;\n op: Op;\n value: string;\n source: string;\n}\n\nexport interface FilterError {\n line: number;\n source: string;\n message: string;\n}\n\nexport interface ParsedFilter {\n rules: Rule[];\n errors: FilterError[];\n}\n\nexport interface Scope {\n email: string;\n details: Record | null;\n}\n\nexport type Decision = {\n /** Should the notification go out? */\n send: boolean;\n outcome: \"no-filter\" | \"match\" | \"no-match\" | \"error\";\n /** Human-readable explanation, shown in the dashboard and delivery log. */\n reason: string;\n};\n\nconst OP_ALIASES: Record = {\n \"=\": \"eq\",\n \"==\": \"eq\",\n \"is\": \"eq\",\n \"!=\": \"neq\",\n \"<>\": \"neq\",\n \"isnt\": \"neq\",\n \"~\": \"contains\",\n \"contains\": \"contains\",\n \"includes\": \"contains\",\n \"in\": \"in\",\n \">\": \"gt\",\n \">=\": \"gte\",\n \"<\": \"lt\",\n \"<=\": \"lte\",\n \"exists\": \"exists\",\n \"present\": \"exists\",\n \"has\": \"exists\",\n \"missing\": \"missing\",\n \"absent\": \"missing\",\n \"empty\": \"missing\",\n};\n\nconst OP_LABELS: Record = {\n exists: \"exists\",\n missing: \"missing\",\n eq: \"=\",\n neq: \"!=\",\n contains: \"~\",\n in: \"in\",\n gt: \">\",\n gte: \">=\",\n lt: \"<\",\n lte: \"<=\",\n};\n\nconst NUMERIC_OPS: Op[] = [\"gt\", \"gte\", \"lt\", \"lte\"];\nconst VALUELESS_OPS: Op[] = [\"exists\", \"missing\"];\n\n// path, then a symbol or word operator, then the rest of the line as the value.\nconst LINE_RE = /^([A-Za-z0-9_\\-.[\\]]+)\\s*(!=|<>|>=|<=|==|=|~|>|<|[A-Za-z]+)\\s*(.*)$/;\n\nfunction unquote(value: string): string {\n const trimmed = value.trim();\n if (isQuoted(trimmed)) return trimmed.slice(1, -1);\n return trimmed;\n}\n\nfunction isQuoted(value: string): boolean {\n if (value.length < 2) return false;\n const first = value[0];\n return (first === '\"' || first === \"'\") && first === value[value.length - 1];\n}\n\n/**\n * A value made only of operator punctuation is almost certainly a typo'd operator\n * (`plan === pro` → path `plan`, op `==`, value `=`). Left alone it would compile to a rule\n * that can never match, silently swallowing every notification — so reject it loudly and\n * let the fail-open path take over. Quote the value if you really mean it (`mood = \"<3\"`).\n */\nconst OPERATOR_ONLY_RE = /^[=!~<>]+$/;\n\nexport function parseFilter(raw: string | null | undefined): ParsedFilter {\n const rules: Rule[] = [];\n const errors: FilterError[] = [];\n\n (raw ?? \"\").split(/\\r?\\n/).forEach((line, index) => {\n const source = line.trim();\n if (!source || source.startsWith(\"#\")) return;\n\n const lineNumber = index + 1;\n const match = LINE_RE.exec(source);\n if (!match) {\n errors.push({\n line: lineNumber,\n source,\n message: \"expected `field operator value`, e.g. `plan = enterprise`\",\n });\n return;\n }\n\n const [, path, rawOp, rest] = match;\n const op = OP_ALIASES[rawOp.toLowerCase()];\n if (!op) {\n errors.push({ line: lineNumber, source, message: `unknown operator “${rawOp}”` });\n return;\n }\n\n // Strip trailing comments from the value, but only when clearly a comment.\n const withoutComment = rest.replace(/\\s+#.*$/, \"\").trim();\n const quoted = isQuoted(withoutComment);\n const value = VALUELESS_OPS.includes(op) ? \"\" : unquote(withoutComment);\n\n if (!VALUELESS_OPS.includes(op) && value === \"\") {\n errors.push({ line: lineNumber, source, message: `“${rawOp}” needs a value` });\n return;\n }\n if (!quoted && OPERATOR_ONLY_RE.test(value)) {\n errors.push({\n line: lineNumber,\n source,\n message: `“${value}” isn't a value — check the operator, or quote it as \"${value}\"`,\n });\n return;\n }\n if (NUMERIC_OPS.includes(op) && !Number.isFinite(Number(value))) {\n errors.push({\n line: lineNumber,\n source,\n message: `“${rawOp}” needs a number, got “${value}”`,\n });\n return;\n }\n if (op === \"in\" && splitList(value).length === 0) {\n errors.push({ line: lineNumber, source, message: \"`in` needs a comma-separated list\" });\n return;\n }\n\n rules.push({ path, op, value, source });\n });\n\n return { rules, errors };\n}\n\nfunction splitList(value: string): string[] {\n return value.split(\",\").map(v => unquote(v)).filter(v => v !== \"\");\n}\n\n/** Signup fields visible to filters: everything in `details`, plus `email`. */\nexport function buildScope(scope: Scope): Record {\n // details wins on collision — a submitted `details.email` is the more specific value.\n return { email: scope.email, ...(scope.details ?? {}) };\n}\n\nfunction tokenizePath(path: string): string[] {\n return path\n .replace(/\\[(\\d+)\\]/g, \".$1\")\n .split(\".\")\n .filter(segment => segment !== \"\");\n}\n\nexport function resolvePath(path: string, root: Record): unknown {\n let current: unknown = root;\n for (const segment of tokenizePath(path)) {\n if (current === null || current === undefined) return undefined;\n if (Array.isArray(current)) {\n const index = Number(segment);\n if (!Number.isInteger(index)) return undefined;\n current = current[index];\n continue;\n }\n if (typeof current !== \"object\") return undefined;\n current = (current as Record)[segment];\n }\n return current;\n}\n\n/** Present = supplied and not blank. `false` and `0` are present; \"\" and [] are not. */\nexport function isPresent(value: unknown): boolean {\n if (value === undefined || value === null) return false;\n if (typeof value === \"string\") return value.trim() !== \"\";\n if (Array.isArray(value)) return value.some(isPresent);\n if (typeof value === \"object\") return Object.keys(value as object).length > 0;\n return true;\n}\n\nfunction normalize(value: unknown): string {\n if (typeof value === \"string\") return value.trim().toLowerCase();\n if (value === null || value === undefined) return \"\";\n if (typeof value === \"object\") return JSON.stringify(value).toLowerCase();\n return String(value).toLowerCase();\n}\n\nfunction equals(value: unknown, target: string): boolean {\n if (Array.isArray(value)) return value.some(item => equals(item, target));\n const left = normalize(value);\n const right = target.trim().toLowerCase();\n if (left === right) return true;\n const leftNumber = Number(left);\n const rightNumber = Number(right);\n return left !== \"\" && right !== \"\" &&\n Number.isFinite(leftNumber) && Number.isFinite(rightNumber) &&\n leftNumber === rightNumber;\n}\n\nfunction containsText(value: unknown, target: string): boolean {\n if (Array.isArray(value)) return value.some(item => containsText(item, target));\n if (!isPresent(value)) return false;\n return normalize(value).includes(target.trim().toLowerCase());\n}\n\nfunction compareNumeric(value: unknown, target: string, op: Op): boolean {\n if (Array.isArray(value)) return value.some(item => compareNumeric(item, target, op));\n const left = typeof value === \"boolean\" ? NaN : Number(normalize(value));\n const right = Number(target);\n if (!Number.isFinite(left) || !Number.isFinite(right)) return false;\n switch (op) {\n case \"gt\":\n return left > right;\n case \"gte\":\n return left >= right;\n case \"lt\":\n return left < right;\n case \"lte\":\n return left <= right;\n default:\n return false;\n }\n}\n\nexport function testRule(rule: Rule, root: Record): boolean {\n const value = resolvePath(rule.path, root);\n switch (rule.op) {\n case \"exists\":\n return isPresent(value);\n case \"missing\":\n return !isPresent(value);\n case \"eq\":\n return equals(value, rule.value);\n case \"neq\":\n // Absent counts as \"not equal\" — documented, pair with `exists` if you need presence.\n return !equals(value, rule.value);\n case \"contains\":\n return containsText(value, rule.value);\n case \"in\":\n return splitList(rule.value).some(item => equals(value, item));\n case \"gt\":\n case \"gte\":\n case \"lt\":\n case \"lte\":\n return compareNumeric(value, rule.value, rule.op);\n default:\n return false;\n }\n}\n\nexport function ruleToText(rule: Rule): string {\n const label = OP_LABELS[rule.op];\n return VALUELESS_OPS.includes(rule.op)\n ? 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