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ai: remove most manual type conversion in favor of srf

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This commit is contained in:
Emil Lerch 2026-03-06 10:59:33 -08:00
parent c65ebb9384
commit 57b0811ecd
Signed by: lobo
GPG key ID: A7B62D657EF764F8
7 changed files with 233 additions and 506 deletions
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4
build.zig.zon
View file

@ -13,8 +13,8 @@
.hash = "z2d-0.10.0-j5P_Hu-6FgBsZNgwphIqh17jDnj8_yPtD8yzjO6PpHRQ", .hash = "z2d-0.10.0-j5P_Hu-6FgBsZNgwphIqh17jDnj8_yPtD8yzjO6PpHRQ",
}, },
.srf = .{ .srf = .{
.url = "git+https://git.lerch.org/lobo/srf.git#18a4558b47acb3d62701351820cd70dcc2c56c5a", .url = "git+https://git.lerch.org/lobo/srf.git#7aa7ec112af736490ce7b5a887886a1da1212c6a",
.hash = "srf-0.0.0-qZj579ZBAQCJdGtTnPQlxlGPw3g2gmTmwer8V6yyo-ga", .hash = "srf-0.0.0-qZj57-ZRAQARvv95mwaqA_39lAEKbuhQdUdmSQ5qhei5",
}, },
}, },
.paths = .{ .paths = .{

668
src/cache/store.zig vendored
View file

@ -14,6 +14,7 @@ const Lot = @import("../models/portfolio.zig").Lot;
const Portfolio = @import("../models/portfolio.zig").Portfolio; const Portfolio = @import("../models/portfolio.zig").Portfolio;
const OptionsChain = @import("../models/option.zig").OptionsChain; const OptionsChain = @import("../models/option.zig").OptionsChain;
const OptionContract = @import("../models/option.zig").OptionContract; const OptionContract = @import("../models/option.zig").OptionContract;
const ContractType = @import("../models/option.zig").ContractType;
/// TTL durations in seconds for cache expiry. /// TTL durations in seconds for cache expiry.
pub const Ttl = struct { pub const Ttl = struct {
@ -95,32 +96,7 @@ pub const Store = struct {
}; };
} }
/// Write raw SRF data for a symbol and data type with an embedded expiry timestamp. /// Write raw SRF data for a symbol and data type.
/// Inserts a `# good_until::{unix_seconds}` comment after the `#!srfv1` header so
/// freshness can be determined from the file content rather than filesystem mtime.
pub fn writeWithExpiry(self: *Store, symbol: []const u8, data_type: DataType, data: []const u8, ttl_seconds: i64) !void {
try self.ensureSymbolDir(symbol);
const path = try self.symbolPath(symbol, data_type.fileName());
defer self.allocator.free(path);
const file = try std.fs.cwd().createFile(path, .{});
defer file.close();
const header = "#!srfv1\n";
if (std.mem.startsWith(u8, data, header)) {
try file.writeAll(header);
var expiry_buf: [48]u8 = undefined;
const expiry = std.time.timestamp() + ttl_seconds;
const expiry_line = std.fmt.bufPrint(&expiry_buf, "# good_until::{d}\n", .{expiry}) catch return;
try file.writeAll(expiry_line);
try file.writeAll(data[header.len..]);
} else {
// Unexpected format -- write as-is to avoid data loss
try file.writeAll(data);
}
}
/// Write raw SRF data for a symbol and data type (no expiry metadata).
pub fn writeRaw(self: *Store, symbol: []const u8, data_type: DataType, data: []const u8) !void { pub fn writeRaw(self: *Store, symbol: []const u8, data_type: DataType, data: []const u8) !void {
try self.ensureSymbolDir(symbol); try self.ensureSymbolDir(symbol);
const path = try self.symbolPath(symbol, data_type.fileName()); const path = try self.symbolPath(symbol, data_type.fileName());
@ -131,35 +107,22 @@ pub const Store = struct {
try file.writeAll(data); try file.writeAll(data);
} }
/// Check if a cached data file is fresh by reading the embedded expiry timestamp. /// Check if raw SRF data is fresh using the embedded `#!expires=` directive.
/// - Negative cache entries (# fetch_failed) are always fresh. /// - Negative cache entries (# fetch_failed) are always fresh.
/// - Files with `# good_until::{timestamp}` are fresh if now < timestamp. /// - Data with `#!expires=` is fresh if the SRF library says so.
/// - Files without expiry metadata are considered stale (triggers re-fetch + rewrite). /// - Data without expiry metadata is considered stale (triggers re-fetch).
pub fn isFresh(self: *Store, symbol: []const u8, data_type: DataType) !bool { pub fn isFreshData(data: []const u8, allocator: std.mem.Allocator) bool {
const path = try self.symbolPath(symbol, data_type.fileName());
defer self.allocator.free(path);
const file = std.fs.cwd().openFile(path, .{}) catch return false;
defer file.close();
// Read enough to find the good_until or fetch_failed comment lines
var buf: [128]u8 = undefined;
const n = file.readAll(&buf) catch return false;
const content = buf[0..n];
// Negative cache entry -- always fresh // Negative cache entry -- always fresh
if (std.mem.indexOf(u8, content, "# fetch_failed")) |_| return true; if (std.mem.indexOf(u8, data, "# fetch_failed")) |_| return true;
// Look for embedded expiry var reader = std.Io.Reader.fixed(data);
if (std.mem.indexOf(u8, content, "# good_until::")) |idx| { const parsed = srf.parse(&reader, allocator, .{}) catch return false;
const after = content[idx + "# good_until::".len ..]; defer parsed.deinit();
const end = std.mem.indexOfScalar(u8, after, '\n') orelse after.len;
const expiry = std.fmt.parseInt(i64, after[0..end], 10) catch return false;
return std.time.timestamp() < expiry;
}
// No expiry info (legacy file or missing metadata) -- stale // No expiry directive → stale (legacy file, trigger re-fetch + rewrite)
return false; if (parsed.expires == null) return false;
return parsed.isFresh();
} }
/// Get the modification time (unix seconds) of a cached data file. /// Get the modification time (unix seconds) of a cached data file.
@ -259,11 +222,11 @@ pub const Store = struct {
// -- Serialization helpers -- // -- Serialization helpers --
/// Serialize candles to SRF compact format. /// Serialize candles to SRF compact format.
pub fn serializeCandles(allocator: std.mem.Allocator, candles: []const Candle) ![]const u8 { pub fn serializeCandles(allocator: std.mem.Allocator, candles: []const Candle, options: srf.FormatOptions) ![]const u8 {
var buf: std.ArrayList(u8) = .empty; var buf: std.ArrayList(u8) = .empty;
errdefer buf.deinit(allocator); errdefer buf.deinit(allocator);
const writer = buf.writer(allocator); const writer = buf.writer(allocator);
try writer.print("{f}", .{srf.fmtFrom(Candle, allocator, candles, .{})}); try writer.print("{f}", .{srf.fmtFrom(Candle, allocator, candles, options)});
return buf.toOwnedSlice(allocator); return buf.toOwnedSlice(allocator);
} }
@ -277,38 +240,7 @@ pub const Store = struct {
defer parsed.deinit(); defer parsed.deinit();
for (parsed.records.items) |record| { for (parsed.records.items) |record| {
var candle = Candle{ const candle = record.to(Candle) catch continue;
.date = Date.epoch,
.open = 0,
.high = 0,
.low = 0,
.close = 0,
.adj_close = 0,
.volume = 0,
};
for (record.fields) |field| {
if (std.mem.eql(u8, field.key, "date")) {
if (field.value) |v| {
const str = switch (v) {
.string => |s| s,
else => continue,
};
candle.date = Date.parse(str) catch continue;
}
} else if (std.mem.eql(u8, field.key, "open")) {
if (field.value) |v| candle.open = numVal(v);
} else if (std.mem.eql(u8, field.key, "high")) {
if (field.value) |v| candle.high = numVal(v);
} else if (std.mem.eql(u8, field.key, "low")) {
if (field.value) |v| candle.low = numVal(v);
} else if (std.mem.eql(u8, field.key, "close")) {
if (field.value) |v| candle.close = numVal(v);
} else if (std.mem.eql(u8, field.key, "adj_close")) {
if (field.value) |v| candle.adj_close = numVal(v);
} else if (std.mem.eql(u8, field.key, "volume")) {
if (field.value) |v| candle.volume = @intFromFloat(numVal(v));
}
}
try candles.append(allocator, candle); try candles.append(allocator, candle);
} }
@ -316,20 +248,20 @@ pub const Store = struct {
} }
/// Serialize dividends to SRF compact format. /// Serialize dividends to SRF compact format.
pub fn serializeDividends(allocator: std.mem.Allocator, dividends: []const Dividend) ![]const u8 { pub fn serializeDividends(allocator: std.mem.Allocator, dividends: []const Dividend, options: srf.FormatOptions) ![]const u8 {
var buf: std.ArrayList(u8) = .empty; var buf: std.ArrayList(u8) = .empty;
errdefer buf.deinit(allocator); errdefer buf.deinit(allocator);
const writer = buf.writer(allocator); const writer = buf.writer(allocator);
try writer.print("{f}", .{srf.fmtFrom(Dividend, allocator, dividends, .{})}); try writer.print("{f}", .{srf.fmtFrom(Dividend, allocator, dividends, options)});
return buf.toOwnedSlice(allocator); return buf.toOwnedSlice(allocator);
} }
/// Serialize splits to SRF compact format. /// Serialize splits to SRF compact format.
pub fn serializeSplits(allocator: std.mem.Allocator, splits: []const Split) ![]const u8 { pub fn serializeSplits(allocator: std.mem.Allocator, splits: []const Split, options: srf.FormatOptions) ![]const u8 {
var buf: std.ArrayList(u8) = .empty; var buf: std.ArrayList(u8) = .empty;
errdefer buf.deinit(allocator); errdefer buf.deinit(allocator);
const writer = buf.writer(allocator); const writer = buf.writer(allocator);
try writer.print("{f}", .{srf.fmtFrom(Split, allocator, splits, .{})}); try writer.print("{f}", .{srf.fmtFrom(Split, allocator, splits, options)});
return buf.toOwnedSlice(allocator); return buf.toOwnedSlice(allocator);
} }
@ -343,44 +275,7 @@ pub const Store = struct {
defer parsed.deinit(); defer parsed.deinit();
for (parsed.records.items) |record| { for (parsed.records.items) |record| {
var div = Dividend{ const div = record.to(Dividend) catch continue;
.ex_date = Date.epoch,
.amount = 0,
};
for (record.fields) |field| {
if (std.mem.eql(u8, field.key, "ex_date")) {
if (field.value) |v| {
const str = switch (v) {
.string => |s| s,
else => continue,
};
div.ex_date = Date.parse(str) catch continue;
}
} else if (std.mem.eql(u8, field.key, "amount")) {
if (field.value) |v| div.amount = numVal(v);
} else if (std.mem.eql(u8, field.key, "pay_date")) {
if (field.value) |v| {
const str = switch (v) {
.string => |s| s,
else => continue,
};
div.pay_date = Date.parse(str) catch null;
}
} else if (std.mem.eql(u8, field.key, "frequency")) {
if (field.value) |v| {
const n = numVal(v);
if (n > 0 and n <= 255) div.frequency = @intFromFloat(n);
}
} else if (std.mem.eql(u8, field.key, "type")) {
if (field.value) |v| {
const str = switch (v) {
.string => |s| s,
else => continue,
};
div.type = parseDividendTypeTag(str);
}
}
}
try dividends.append(allocator, div); try dividends.append(allocator, div);
} }
@ -397,26 +292,7 @@ pub const Store = struct {
defer parsed.deinit(); defer parsed.deinit();
for (parsed.records.items) |record| { for (parsed.records.items) |record| {
var split = Split{ const split = record.to(Split) catch continue;
.date = Date.epoch,
.numerator = 0,
.denominator = 0,
};
for (record.fields) |field| {
if (std.mem.eql(u8, field.key, "date")) {
if (field.value) |v| {
const str = switch (v) {
.string => |s| s,
else => continue,
};
split.date = Date.parse(str) catch continue;
}
} else if (std.mem.eql(u8, field.key, "numerator")) {
if (field.value) |v| split.numerator = numVal(v);
} else if (std.mem.eql(u8, field.key, "denominator")) {
if (field.value) |v| split.denominator = numVal(v);
}
}
try splits.append(allocator, split); try splits.append(allocator, split);
} }
@ -424,11 +300,11 @@ pub const Store = struct {
} }
/// Serialize earnings events to SRF compact format. /// Serialize earnings events to SRF compact format.
pub fn serializeEarnings(allocator: std.mem.Allocator, events: []const EarningsEvent) ![]const u8 { pub fn serializeEarnings(allocator: std.mem.Allocator, events: []const EarningsEvent, options: srf.FormatOptions) ![]const u8 {
var buf: std.ArrayList(u8) = .empty; var buf: std.ArrayList(u8) = .empty;
errdefer buf.deinit(allocator); errdefer buf.deinit(allocator);
const writer = buf.writer(allocator); const writer = buf.writer(allocator);
try writer.print("{f}", .{srf.fmtFrom(EarningsEvent, allocator, events, .{})}); try writer.print("{f}", .{srf.fmtFrom(EarningsEvent, allocator, events, options)});
return buf.toOwnedSlice(allocator); return buf.toOwnedSlice(allocator);
} }
@ -442,47 +318,7 @@ pub const Store = struct {
defer parsed.deinit(); defer parsed.deinit();
for (parsed.records.items) |record| { for (parsed.records.items) |record| {
var ev = EarningsEvent{ var ev = record.to(EarningsEvent) catch continue;
.symbol = "",
.date = Date.epoch,
};
for (record.fields) |field| {
if (std.mem.eql(u8, field.key, "date")) {
if (field.value) |v| {
const str = switch (v) {
.string => |s| s,
else => continue,
};
ev.date = Date.parse(str) catch continue;
}
} else if (std.mem.eql(u8, field.key, "estimate")) {
if (field.value) |v| ev.estimate = numVal(v);
} else if (std.mem.eql(u8, field.key, "actual")) {
if (field.value) |v| ev.actual = numVal(v);
} else if (std.mem.eql(u8, field.key, "quarter")) {
if (field.value) |v| {
const n = numVal(v);
if (n >= 1 and n <= 4) ev.quarter = @intFromFloat(n);
}
} else if (std.mem.eql(u8, field.key, "fiscal_year")) {
if (field.value) |v| {
const n = numVal(v);
if (n > 1900 and n < 2200) ev.fiscal_year = @intFromFloat(n);
}
} else if (std.mem.eql(u8, field.key, "revenue_actual")) {
if (field.value) |v| ev.revenue_actual = numVal(v);
} else if (std.mem.eql(u8, field.key, "revenue_estimate")) {
if (field.value) |v| ev.revenue_estimate = numVal(v);
} else if (std.mem.eql(u8, field.key, "report_time")) {
if (field.value) |v| {
const str = switch (v) {
.string => |s| s,
else => continue,
};
ev.report_time = parseReportTimeTag(str);
}
}
}
// Recompute surprise from actual/estimate // Recompute surprise from actual/estimate
if (ev.actual != null and ev.estimate != null) { if (ev.actual != null and ev.estimate != null) {
ev.surprise = ev.actual.? - ev.estimate.?; ev.surprise = ev.actual.? - ev.estimate.?;
@ -496,45 +332,50 @@ pub const Store = struct {
return events.toOwnedSlice(allocator); return events.toOwnedSlice(allocator);
} }
/// SRF record types for ETF profile serialization.
const EtfMeta = struct {
expense_ratio: ?f64 = null,
net_assets: ?f64 = null,
dividend_yield: ?f64 = null,
portfolio_turnover: ?f64 = null,
total_holdings: ?u32 = null,
inception_date: ?Date = null,
leveraged: bool = false,
};
const EtfRecord = union(enum) {
pub const srf_tag_field = "type";
meta: EtfMeta,
sector: SectorWeight,
holding: Holding,
};
/// Serialize ETF profile to SRF compact format. /// Serialize ETF profile to SRF compact format.
/// Uses multiple record types: meta fields, then sector:: and holding:: prefixed records. /// Uses multiple record types: meta fields, then sector and holding records.
pub fn serializeEtfProfile(allocator: std.mem.Allocator, profile: EtfProfile) ![]const u8 { pub fn serializeEtfProfile(allocator: std.mem.Allocator, profile: EtfProfile, options: srf.FormatOptions) ![]const u8 {
var records: std.ArrayList(EtfRecord) = .empty;
defer records.deinit(allocator);
try records.append(allocator, .{ .meta = .{
.expense_ratio = profile.expense_ratio,
.net_assets = profile.net_assets,
.dividend_yield = profile.dividend_yield,
.portfolio_turnover = profile.portfolio_turnover,
.total_holdings = profile.total_holdings,
.inception_date = profile.inception_date,
.leveraged = profile.leveraged,
} });
if (profile.sectors) |sectors| {
for (sectors) |s| try records.append(allocator, .{ .sector = s });
}
if (profile.holdings) |holdings| {
for (holdings) |h| try records.append(allocator, .{ .holding = h });
}
var buf: std.ArrayList(u8) = .empty; var buf: std.ArrayList(u8) = .empty;
errdefer buf.deinit(allocator); errdefer buf.deinit(allocator);
const writer = buf.writer(allocator); const writer = buf.writer(allocator);
try writer.print("{f}", .{srf.fmtFrom(EtfRecord, allocator, records.items, options)});
try writer.writeAll("#!srfv1\n");
// Meta record
try writer.writeAll("type::meta");
if (profile.expense_ratio) |er| try writer.print(",expense_ratio:num:{d}", .{er});
if (profile.net_assets) |na| try writer.print(",net_assets:num:{d}", .{na});
if (profile.dividend_yield) |dy| try writer.print(",dividend_yield:num:{d}", .{dy});
if (profile.portfolio_turnover) |pt| try writer.print(",portfolio_turnover:num:{d}", .{pt});
if (profile.total_holdings) |th| try writer.print(",total_holdings:num:{d}", .{th});
if (profile.inception_date) |d| {
var db: [10]u8 = undefined;
try writer.print(",inception_date::{s}", .{d.format(&db)});
}
if (profile.leveraged) try writer.writeAll(",leveraged::yes");
try writer.writeAll("\n");
// Sector records
if (profile.sectors) |sectors| {
for (sectors) |sec| {
try writer.print("type::sector,name::{s},weight:num:{d}\n", .{ sec.sector, sec.weight });
}
}
// Holding records
if (profile.holdings) |holdings| {
for (holdings) |h| {
try writer.writeAll("type::holding");
if (h.symbol) |s| try writer.print(",symbol::{s}", .{s});
try writer.print(",name::{s},weight:num:{d}\n", .{ h.name, h.weight });
}
}
return buf.toOwnedSlice(allocator); return buf.toOwnedSlice(allocator);
} }
@ -551,92 +392,26 @@ pub const Store = struct {
errdefer holdings.deinit(allocator); errdefer holdings.deinit(allocator);
for (parsed.records.items) |record| { for (parsed.records.items) |record| {
var record_type: []const u8 = ""; const etf_rec = record.to(EtfRecord) catch continue;
for (record.fields) |field| { switch (etf_rec) {
if (std.mem.eql(u8, field.key, "type")) { .meta => |m| {
if (field.value) |v| { profile.expense_ratio = m.expense_ratio;
record_type = switch (v) { profile.net_assets = m.net_assets;
.string => |s| s, profile.dividend_yield = m.dividend_yield;
else => "", profile.portfolio_turnover = m.portfolio_turnover;
}; profile.total_holdings = m.total_holdings;
} profile.inception_date = m.inception_date;
} profile.leveraged = m.leveraged;
} },
.sector => |s| {
if (std.mem.eql(u8, record_type, "meta")) { const duped = try allocator.dupe(u8, s.name);
for (record.fields) |field| { try sectors.append(allocator, .{ .name = duped, .weight = s.weight });
if (std.mem.eql(u8, field.key, "expense_ratio")) { },
if (field.value) |v| profile.expense_ratio = numVal(v); .holding => |h| {
} else if (std.mem.eql(u8, field.key, "net_assets")) { const duped_sym = if (h.symbol) |s| try allocator.dupe(u8, s) else null;
if (field.value) |v| profile.net_assets = numVal(v); const duped_name = try allocator.dupe(u8, h.name);
} else if (std.mem.eql(u8, field.key, "dividend_yield")) { try holdings.append(allocator, .{ .symbol = duped_sym, .name = duped_name, .weight = h.weight });
if (field.value) |v| profile.dividend_yield = numVal(v); },
} else if (std.mem.eql(u8, field.key, "portfolio_turnover")) {
if (field.value) |v| profile.portfolio_turnover = numVal(v);
} else if (std.mem.eql(u8, field.key, "total_holdings")) {
if (field.value) |v| {
const n = numVal(v);
if (n > 0) profile.total_holdings = @intFromFloat(n);
}
} else if (std.mem.eql(u8, field.key, "inception_date")) {
if (field.value) |v| {
const str = switch (v) {
.string => |s| s,
else => continue,
};
profile.inception_date = Date.parse(str) catch null;
}
} else if (std.mem.eql(u8, field.key, "leveraged")) {
if (field.value) |v| {
const str = switch (v) {
.string => |s| s,
else => continue,
};
profile.leveraged = std.mem.eql(u8, str, "yes");
}
}
}
} else if (std.mem.eql(u8, record_type, "sector")) {
var name: ?[]const u8 = null;
var weight: f64 = 0;
for (record.fields) |field| {
if (std.mem.eql(u8, field.key, "name")) {
if (field.value) |v| name = switch (v) {
.string => |s| s,
else => null,
};
} else if (std.mem.eql(u8, field.key, "weight")) {
if (field.value) |v| weight = numVal(v);
}
}
if (name) |n| {
const duped = try allocator.dupe(u8, n);
try sectors.append(allocator, .{ .sector = duped, .weight = weight });
}
} else if (std.mem.eql(u8, record_type, "holding")) {
var sym: ?[]const u8 = null;
var hname: ?[]const u8 = null;
var weight: f64 = 0;
for (record.fields) |field| {
if (std.mem.eql(u8, field.key, "symbol")) {
if (field.value) |v| sym = switch (v) {
.string => |s| s,
else => null,
};
} else if (std.mem.eql(u8, field.key, "name")) {
if (field.value) |v| hname = switch (v) {
.string => |s| s,
else => null,
};
} else if (std.mem.eql(u8, field.key, "weight")) {
if (field.value) |v| weight = numVal(v);
}
}
if (hname) |hn| {
const duped_sym = if (sym) |s| try allocator.dupe(u8, s) else null;
const duped_name = try allocator.dupe(u8, hn);
try holdings.append(allocator, .{ .symbol = duped_sym, .name = duped_name, .weight = weight });
}
} }
} }
@ -654,54 +429,91 @@ pub const Store = struct {
return profile; return profile;
} }
/// SRF record types for options chain serialization.
const ChainHeader = struct {
expiration: Date,
symbol: []const u8,
price: ?f64 = null,
};
const ContractFields = struct {
expiration: Date,
strike: f64,
bid: ?f64 = null,
ask: ?f64 = null,
last: ?f64 = null,
volume: ?u64 = null,
oi: ?u64 = null,
iv: ?f64 = null,
delta: ?f64 = null,
gamma: ?f64 = null,
theta: ?f64 = null,
vega: ?f64 = null,
};
const OptionsRecord = union(enum) {
pub const srf_tag_field = "type";
chain: ChainHeader,
call: ContractFields,
put: ContractFields,
};
fn contractToFields(c: OptionContract, expiration: Date) ContractFields {
return .{
.expiration = expiration,
.strike = c.strike,
.bid = c.bid,
.ask = c.ask,
.last = c.last_price,
.volume = c.volume,
.oi = c.open_interest,
.iv = c.implied_volatility,
.delta = c.delta,
.gamma = c.gamma,
.theta = c.theta,
.vega = c.vega,
};
}
fn fieldsToContract(cf: ContractFields, contract_type: ContractType) OptionContract {
return .{
.contract_type = contract_type,
.expiration = cf.expiration,
.strike = cf.strike,
.bid = cf.bid,
.ask = cf.ask,
.last_price = cf.last,
.volume = cf.volume,
.open_interest = cf.oi,
.implied_volatility = cf.iv,
.delta = cf.delta,
.gamma = cf.gamma,
.theta = cf.theta,
.vega = cf.vega,
};
}
/// Serialize options chains to SRF compact format. /// Serialize options chains to SRF compact format.
pub fn serializeOptions(allocator: std.mem.Allocator, chains: []const OptionsChain) ![]const u8 { pub fn serializeOptions(allocator: std.mem.Allocator, chains: []const OptionsChain, options: srf.FormatOptions) ![]const u8 {
var buf: std.ArrayList(u8) = .empty; var records: std.ArrayList(OptionsRecord) = .empty;
errdefer buf.deinit(allocator); defer records.deinit(allocator);
const w = buf.writer(allocator);
try w.writeAll("#!srfv1\n");
for (chains) |chain| { for (chains) |chain| {
var exp_buf: [10]u8 = undefined; try records.append(allocator, .{ .chain = .{
try w.print("type::chain,expiration::{s},symbol::{s}", .{ .expiration = chain.expiration,
chain.expiration.format(&exp_buf), chain.underlying_symbol, .symbol = chain.underlying_symbol,
}); .price = chain.underlying_price,
if (chain.underlying_price) |p| try w.print(",price:num:{d}", .{p}); } });
try w.writeAll("\n"); for (chain.calls) |c|
try records.append(allocator, .{ .call = contractToFields(c, chain.expiration) });
for (chain.calls) |c| { for (chain.puts) |p|
var eb: [10]u8 = undefined; try records.append(allocator, .{ .put = contractToFields(p, chain.expiration) });
try w.print("type::call,expiration::{s},strike:num:{d}", .{ chain.expiration.format(&eb), c.strike });
if (c.bid) |v| try w.print(",bid:num:{d}", .{v});
if (c.ask) |v| try w.print(",ask:num:{d}", .{v});
if (c.last_price) |v| try w.print(",last:num:{d}", .{v});
if (c.volume) |v| try w.print(",volume:num:{d}", .{v});
if (c.open_interest) |v| try w.print(",oi:num:{d}", .{v});
if (c.implied_volatility) |v| try w.print(",iv:num:{d}", .{v});
if (c.delta) |v| try w.print(",delta:num:{d}", .{v});
if (c.gamma) |v| try w.print(",gamma:num:{d}", .{v});
if (c.theta) |v| try w.print(",theta:num:{d}", .{v});
if (c.vega) |v| try w.print(",vega:num:{d}", .{v});
try w.writeAll("\n");
}
for (chain.puts) |p| {
var eb: [10]u8 = undefined;
try w.print("type::put,expiration::{s},strike:num:{d}", .{ chain.expiration.format(&eb), p.strike });
if (p.bid) |v| try w.print(",bid:num:{d}", .{v});
if (p.ask) |v| try w.print(",ask:num:{d}", .{v});
if (p.last_price) |v| try w.print(",last:num:{d}", .{v});
if (p.volume) |v| try w.print(",volume:num:{d}", .{v});
if (p.open_interest) |v| try w.print(",oi:num:{d}", .{v});
if (p.implied_volatility) |v| try w.print(",iv:num:{d}", .{v});
if (p.delta) |v| try w.print(",delta:num:{d}", .{v});
if (p.gamma) |v| try w.print(",gamma:num:{d}", .{v});
if (p.theta) |v| try w.print(",theta:num:{d}", .{v});
if (p.vega) |v| try w.print(",vega:num:{d}", .{v});
try w.writeAll("\n");
}
} }
var buf: std.ArrayList(u8) = .empty;
errdefer buf.deinit(allocator);
const writer = buf.writer(allocator);
try writer.print("{f}", .{srf.fmtFrom(OptionsRecord, allocator, records.items, options)});
return buf.toOwnedSlice(allocator); return buf.toOwnedSlice(allocator);
} }
@ -720,55 +532,26 @@ pub const Store = struct {
chains.deinit(allocator); chains.deinit(allocator);
} }
// First pass: collect chain headers (expirations) // Map expiration date → chain index
// Second: collect calls/puts per expiration var exp_map = std.AutoHashMap(i32, usize).init(allocator);
var exp_map = std.StringHashMap(usize).init(allocator);
defer exp_map.deinit(); defer exp_map.deinit();
// Collect all chain records first // First pass: collect chain headers
for (parsed.records.items) |record| { for (parsed.records.items) |record| {
var rec_type: []const u8 = ""; const opt_rec = record.to(OptionsRecord) catch continue;
var expiration: ?Date = null; switch (opt_rec) {
var exp_str: []const u8 = ""; .chain => |ch| {
var symbol: []const u8 = "";
var price: ?f64 = null;
for (record.fields) |field| {
if (std.mem.eql(u8, field.key, "type")) {
if (field.value) |v| rec_type = switch (v) {
.string => |s| s,
else => "",
};
} else if (std.mem.eql(u8, field.key, "expiration")) {
if (field.value) |v| {
exp_str = switch (v) {
.string => |s| s,
else => continue,
};
expiration = Date.parse(exp_str) catch null;
}
} else if (std.mem.eql(u8, field.key, "symbol")) {
if (field.value) |v| symbol = switch (v) {
.string => |s| s,
else => "",
};
} else if (std.mem.eql(u8, field.key, "price")) {
if (field.value) |v| price = numVal(v);
}
}
if (std.mem.eql(u8, rec_type, "chain")) {
if (expiration) |exp| {
const idx = chains.items.len; const idx = chains.items.len;
try chains.append(allocator, .{ try chains.append(allocator, .{
.underlying_symbol = try allocator.dupe(u8, symbol), .underlying_symbol = try allocator.dupe(u8, ch.symbol),
.underlying_price = price, .underlying_price = ch.price,
.expiration = exp, .expiration = ch.expiration,
.calls = &.{}, .calls = &.{},
.puts = &.{}, .puts = &.{},
}); });
try exp_map.put(exp_str, idx); try exp_map.put(ch.expiration.days, idx);
} },
else => {},
} }
} }
@ -787,67 +570,23 @@ pub const Store = struct {
} }
for (parsed.records.items) |record| { for (parsed.records.items) |record| {
var rec_type: []const u8 = ""; const opt_rec = record.to(OptionsRecord) catch continue;
var exp_str: []const u8 = ""; switch (opt_rec) {
var contract = OptionContract{ .call => |cf| {
.contract_type = .call, if (exp_map.get(cf.expiration.days)) |idx| {
.strike = 0, const entry = try calls_map.getOrPut(idx);
.expiration = Date.epoch, if (!entry.found_existing) entry.value_ptr.* = .empty;
}; try entry.value_ptr.append(allocator, fieldsToContract(cf, .call));
for (record.fields) |field| {
if (std.mem.eql(u8, field.key, "type")) {
if (field.value) |v| rec_type = switch (v) {
.string => |s| s,
else => "",
};
} else if (std.mem.eql(u8, field.key, "expiration")) {
if (field.value) |v| {
exp_str = switch (v) {
.string => |s| s,
else => continue,
};
contract.expiration = Date.parse(exp_str) catch Date.epoch;
} }
} else if (std.mem.eql(u8, field.key, "strike")) { },
if (field.value) |v| contract.strike = numVal(v); .put => |cf| {
} else if (std.mem.eql(u8, field.key, "bid")) { if (exp_map.get(cf.expiration.days)) |idx| {
if (field.value) |v| contract.bid = numVal(v); const entry = try puts_map.getOrPut(idx);
} else if (std.mem.eql(u8, field.key, "ask")) { if (!entry.found_existing) entry.value_ptr.* = .empty;
if (field.value) |v| contract.ask = numVal(v); try entry.value_ptr.append(allocator, fieldsToContract(cf, .put));
} else if (std.mem.eql(u8, field.key, "last")) { }
if (field.value) |v| contract.last_price = numVal(v); },
} else if (std.mem.eql(u8, field.key, "volume")) { .chain => {},
if (field.value) |v| contract.volume = @intFromFloat(numVal(v));
} else if (std.mem.eql(u8, field.key, "oi")) {
if (field.value) |v| contract.open_interest = @intFromFloat(numVal(v));
} else if (std.mem.eql(u8, field.key, "iv")) {
if (field.value) |v| contract.implied_volatility = numVal(v);
} else if (std.mem.eql(u8, field.key, "delta")) {
if (field.value) |v| contract.delta = numVal(v);
} else if (std.mem.eql(u8, field.key, "gamma")) {
if (field.value) |v| contract.gamma = numVal(v);
} else if (std.mem.eql(u8, field.key, "theta")) {
if (field.value) |v| contract.theta = numVal(v);
} else if (std.mem.eql(u8, field.key, "vega")) {
if (field.value) |v| contract.vega = numVal(v);
}
}
if (std.mem.eql(u8, rec_type, "call")) {
contract.contract_type = .call;
if (exp_map.get(exp_str)) |idx| {
const entry = try calls_map.getOrPut(idx);
if (!entry.found_existing) entry.value_ptr.* = .empty;
try entry.value_ptr.append(allocator, contract);
}
} else if (std.mem.eql(u8, rec_type, "put")) {
contract.contract_type = .put;
if (exp_map.get(exp_str)) |idx| {
const entry = try puts_map.getOrPut(idx);
if (!entry.found_existing) entry.value_ptr.* = .empty;
try entry.value_ptr.append(allocator, contract);
}
} }
} }
@ -864,21 +603,6 @@ pub const Store = struct {
return chains.toOwnedSlice(allocator); return chains.toOwnedSlice(allocator);
} }
fn parseDividendTypeTag(s: []const u8) DividendType {
if (std.mem.eql(u8, s, "regular")) return .regular;
if (std.mem.eql(u8, s, "special")) return .special;
if (std.mem.eql(u8, s, "supplemental")) return .supplemental;
if (std.mem.eql(u8, s, "irregular")) return .irregular;
return .unknown;
}
fn parseReportTimeTag(s: []const u8) ReportTime {
if (std.mem.eql(u8, s, "bmo")) return .bmo;
if (std.mem.eql(u8, s, "amc")) return .amc;
if (std.mem.eql(u8, s, "dmh")) return .dmh;
return .unknown;
}
fn symbolPath(self: *Store, symbol: []const u8, file_name: []const u8) ![]const u8 { fn symbolPath(self: *Store, symbol: []const u8, file_name: []const u8) ![]const u8 {
if (file_name.len == 0) { if (file_name.len == 0) {
return std.fs.path.join(self.allocator, &.{ self.cache_dir, symbol }); return std.fs.path.join(self.allocator, &.{ self.cache_dir, symbol });
@ -1066,7 +790,7 @@ test "dividend serialize/deserialize round-trip" {
.{ .ex_date = Date.fromYmd(2024, 6, 14), .amount = 0.9148, .type = .special }, .{ .ex_date = Date.fromYmd(2024, 6, 14), .amount = 0.9148, .type = .special },
}; };
const data = try Store.serializeDividends(allocator, &divs); const data = try Store.serializeDividends(allocator, &divs, .{});
defer allocator.free(data); defer allocator.free(data);
const parsed = try Store.deserializeDividends(allocator, data); const parsed = try Store.deserializeDividends(allocator, data);
@ -1094,7 +818,7 @@ test "split serialize/deserialize round-trip" {
.{ .date = Date.fromYmd(2014, 6, 9), .numerator = 7, .denominator = 1 }, .{ .date = Date.fromYmd(2014, 6, 9), .numerator = 7, .denominator = 1 },
}; };
const data = try Store.serializeSplits(allocator, &splits); const data = try Store.serializeSplits(allocator, &splits, .{});
defer allocator.free(data); defer allocator.free(data);
const parsed = try Store.deserializeSplits(allocator, data); const parsed = try Store.deserializeSplits(allocator, data);

4
src/commands/etf.zig
View file

@ -25,7 +25,7 @@ pub fn run(allocator: std.mem.Allocator, svc: *zfin.DataService, symbol: []const
allocator.free(h); allocator.free(h);
} }
if (profile.sectors) |s| { if (profile.sectors) |s| {
for (s) |sec| allocator.free(sec.sector); for (s) |sec| allocator.free(sec.name);
allocator.free(s); allocator.free(s);
} }
} }
@ -76,7 +76,7 @@ pub fn printProfile(profile: zfin.EtfProfile, symbol: []const u8, color: bool, o
try cli.setFg(out, color, cli.CLR_ACCENT); try cli.setFg(out, color, cli.CLR_ACCENT);
try out.print(" {d:>5.1}%", .{sec.weight * 100.0}); try out.print(" {d:>5.1}%", .{sec.weight * 100.0});
try cli.reset(out, color); try cli.reset(out, color);
try out.print(" {s}\n", .{sec.sector}); try out.print(" {s}\n", .{sec.name});
} }
} }
} }

2
src/models/etf_profile.zig
View file

@ -9,7 +9,7 @@ pub const Holding = struct {
/// Sector allocation in an ETF. /// Sector allocation in an ETF.
pub const SectorWeight = struct { pub const SectorWeight = struct {
sector: []const u8, name: []const u8,
weight: f64, weight: f64,
}; };

2
src/providers/alphavantage.zig
View file

@ -171,7 +171,7 @@ fn parseEtfProfileResponse(
const duped_name = allocator.dupe(u8, name) catch return provider.ProviderError.OutOfMemory; const duped_name = allocator.dupe(u8, name) catch return provider.ProviderError.OutOfMemory;
sectors.append(allocator, .{ sectors.append(allocator, .{
.sector = duped_name, .name = duped_name,
.weight = weight, .weight = weight,
}) catch return provider.ProviderError.OutOfMemory; }) catch return provider.ProviderError.OutOfMemory;
} }

55
src/service.zig
View file

@ -132,8 +132,7 @@ pub const DataService = struct {
const cached_raw = s.readRaw(symbol, .candles_daily) catch return DataError.CacheError; const cached_raw = s.readRaw(symbol, .candles_daily) catch return DataError.CacheError;
if (cached_raw) |data| { if (cached_raw) |data| {
defer self.allocator.free(data); defer self.allocator.free(data);
const fresh = s.isFresh(symbol, .candles_daily) catch false; if (cache.Store.isFreshData(data, self.allocator)) {
if (fresh) {
const candles = cache.Store.deserializeCandles(self.allocator, data) catch null; const candles = cache.Store.deserializeCandles(self.allocator, data) catch null;
if (candles) |c| return .{ .data = c, .source = .cached, .timestamp = s.getMtime(symbol, .candles_daily) orelse std.time.timestamp() }; if (candles) |c| return .{ .data = c, .source = .cached, .timestamp = s.getMtime(symbol, .candles_daily) orelse std.time.timestamp() };
} }
@ -150,9 +149,10 @@ pub const DataService = struct {
// Cache the result // Cache the result
if (fetched.len > 0) { if (fetched.len > 0) {
if (cache.Store.serializeCandles(self.allocator, fetched)) |srf_data| { const expires = std.time.timestamp() + cache.Ttl.candles_latest;
if (cache.Store.serializeCandles(self.allocator, fetched, .{ .expires = expires })) |srf_data| {
defer self.allocator.free(srf_data); defer self.allocator.free(srf_data);
s.writeWithExpiry(symbol, .candles_daily, srf_data, cache.Ttl.candles_latest) catch {}; s.writeRaw(symbol, .candles_daily, srf_data) catch {};
} else |_| {} } else |_| {}
} }
@ -167,8 +167,7 @@ pub const DataService = struct {
const cached_raw = s.readRaw(symbol, .dividends) catch return DataError.CacheError; const cached_raw = s.readRaw(symbol, .dividends) catch return DataError.CacheError;
if (cached_raw) |data| { if (cached_raw) |data| {
defer self.allocator.free(data); defer self.allocator.free(data);
const fresh = s.isFresh(symbol, .dividends) catch false; if (cache.Store.isFreshData(data, self.allocator)) {
if (fresh) {
const divs = cache.Store.deserializeDividends(self.allocator, data) catch null; const divs = cache.Store.deserializeDividends(self.allocator, data) catch null;
if (divs) |d| return .{ .data = d, .source = .cached, .timestamp = s.getMtime(symbol, .dividends) orelse std.time.timestamp() }; if (divs) |d| return .{ .data = d, .source = .cached, .timestamp = s.getMtime(symbol, .dividends) orelse std.time.timestamp() };
} }
@ -180,9 +179,10 @@ pub const DataService = struct {
}; };
if (fetched.len > 0) { if (fetched.len > 0) {
if (cache.Store.serializeDividends(self.allocator, fetched)) |srf_data| { const expires = std.time.timestamp() + cache.Ttl.dividends;
if (cache.Store.serializeDividends(self.allocator, fetched, .{ .expires = expires })) |srf_data| {
defer self.allocator.free(srf_data); defer self.allocator.free(srf_data);
s.writeWithExpiry(symbol, .dividends, srf_data, cache.Ttl.dividends) catch {}; s.writeRaw(symbol, .dividends, srf_data) catch {};
} else |_| {} } else |_| {}
} }
@ -197,8 +197,7 @@ pub const DataService = struct {
const cached_raw = s.readRaw(symbol, .splits) catch return DataError.CacheError; const cached_raw = s.readRaw(symbol, .splits) catch return DataError.CacheError;
if (cached_raw) |data| { if (cached_raw) |data| {
defer self.allocator.free(data); defer self.allocator.free(data);
const fresh = s.isFresh(symbol, .splits) catch false; if (cache.Store.isFreshData(data, self.allocator)) {
if (fresh) {
const splits = cache.Store.deserializeSplits(self.allocator, data) catch null; const splits = cache.Store.deserializeSplits(self.allocator, data) catch null;
if (splits) |sp| return .{ .data = sp, .source = .cached, .timestamp = s.getMtime(symbol, .splits) orelse std.time.timestamp() }; if (splits) |sp| return .{ .data = sp, .source = .cached, .timestamp = s.getMtime(symbol, .splits) orelse std.time.timestamp() };
} }
@ -209,9 +208,9 @@ pub const DataService = struct {
return DataError.FetchFailed; return DataError.FetchFailed;
}; };
if (cache.Store.serializeSplits(self.allocator, fetched)) |srf_data| { if (cache.Store.serializeSplits(self.allocator, fetched, .{ .expires = std.time.timestamp() + cache.Ttl.splits })) |srf_data| {
defer self.allocator.free(srf_data); defer self.allocator.free(srf_data);
s.writeWithExpiry(symbol, .splits, srf_data, cache.Ttl.splits) catch {}; s.writeRaw(symbol, .splits, srf_data) catch {};
} else |_| {} } else |_| {}
return .{ .data = fetched, .source = .fetched, .timestamp = std.time.timestamp() }; return .{ .data = fetched, .source = .fetched, .timestamp = std.time.timestamp() };
@ -225,8 +224,7 @@ pub const DataService = struct {
const cached_raw = s.readRaw(symbol, .options) catch return DataError.CacheError; const cached_raw = s.readRaw(symbol, .options) catch return DataError.CacheError;
if (cached_raw) |data| { if (cached_raw) |data| {
defer self.allocator.free(data); defer self.allocator.free(data);
const fresh = s.isFresh(symbol, .options) catch false; if (cache.Store.isFreshData(data, self.allocator)) {
if (fresh) {
const chains = cache.Store.deserializeOptions(self.allocator, data) catch null; const chains = cache.Store.deserializeOptions(self.allocator, data) catch null;
if (chains) |c| return .{ .data = c, .source = .cached, .timestamp = s.getMtime(symbol, .options) orelse std.time.timestamp() }; if (chains) |c| return .{ .data = c, .source = .cached, .timestamp = s.getMtime(symbol, .options) orelse std.time.timestamp() };
} }
@ -238,9 +236,10 @@ pub const DataService = struct {
}; };
if (fetched.len > 0) { if (fetched.len > 0) {
if (cache.Store.serializeOptions(self.allocator, fetched)) |srf_data| { const expires = std.time.timestamp() + cache.Ttl.options;
if (cache.Store.serializeOptions(self.allocator, fetched, .{ .expires = expires })) |srf_data| {
defer self.allocator.free(srf_data); defer self.allocator.free(srf_data);
s.writeWithExpiry(symbol, .options, srf_data, cache.Ttl.options) catch {}; s.writeRaw(symbol, .options, srf_data) catch {};
} else |_| {} } else |_| {}
} }
@ -255,8 +254,7 @@ pub const DataService = struct {
const cached_raw = s.readRaw(symbol, .earnings) catch return DataError.CacheError; const cached_raw = s.readRaw(symbol, .earnings) catch return DataError.CacheError;
if (cached_raw) |data| { if (cached_raw) |data| {
defer self.allocator.free(data); defer self.allocator.free(data);
const fresh = s.isFresh(symbol, .earnings) catch false; if (cache.Store.isFreshData(data, self.allocator)) {
if (fresh) {
const events = cache.Store.deserializeEarnings(self.allocator, data) catch null; const events = cache.Store.deserializeEarnings(self.allocator, data) catch null;
if (events) |e| return .{ .data = e, .source = .cached, .timestamp = s.getMtime(symbol, .earnings) orelse std.time.timestamp() }; if (events) |e| return .{ .data = e, .source = .cached, .timestamp = s.getMtime(symbol, .earnings) orelse std.time.timestamp() };
} }
@ -272,9 +270,10 @@ pub const DataService = struct {
}; };
if (fetched.len > 0) { if (fetched.len > 0) {
if (cache.Store.serializeEarnings(self.allocator, fetched)) |srf_data| { const expires = std.time.timestamp() + cache.Ttl.earnings;
if (cache.Store.serializeEarnings(self.allocator, fetched, .{ .expires = expires })) |srf_data| {
defer self.allocator.free(srf_data); defer self.allocator.free(srf_data);
s.writeWithExpiry(symbol, .earnings, srf_data, cache.Ttl.earnings) catch {}; s.writeRaw(symbol, .earnings, srf_data) catch {};
} else |_| {} } else |_| {}
} }
@ -289,8 +288,7 @@ pub const DataService = struct {
const cached_raw = s.readRaw(symbol, .etf_profile) catch return DataError.CacheError; const cached_raw = s.readRaw(symbol, .etf_profile) catch return DataError.CacheError;
if (cached_raw) |data| { if (cached_raw) |data| {
defer self.allocator.free(data); defer self.allocator.free(data);
const fresh = s.isFresh(symbol, .etf_profile) catch false; if (cache.Store.isFreshData(data, self.allocator)) {
if (fresh) {
const profile = cache.Store.deserializeEtfProfile(self.allocator, data) catch null; const profile = cache.Store.deserializeEtfProfile(self.allocator, data) catch null;
if (profile) |p| return .{ .data = p, .source = .cached, .timestamp = s.getMtime(symbol, .etf_profile) orelse std.time.timestamp() }; if (profile) |p| return .{ .data = p, .source = .cached, .timestamp = s.getMtime(symbol, .etf_profile) orelse std.time.timestamp() };
} }
@ -301,9 +299,9 @@ pub const DataService = struct {
return DataError.FetchFailed; return DataError.FetchFailed;
}; };
if (cache.Store.serializeEtfProfile(self.allocator, fetched)) |srf_data| { if (cache.Store.serializeEtfProfile(self.allocator, fetched, .{ .expires = std.time.timestamp() + cache.Ttl.etf_profile })) |srf_data| {
defer self.allocator.free(srf_data); defer self.allocator.free(srf_data);
s.writeWithExpiry(symbol, .etf_profile, srf_data, cache.Ttl.etf_profile) catch {}; s.writeRaw(symbol, .etf_profile, srf_data) catch {};
} else |_| {} } else |_| {}
return .{ .data = fetched, .source = .fetched, .timestamp = std.time.timestamp() }; return .{ .data = fetched, .source = .fetched, .timestamp = std.time.timestamp() };
@ -396,10 +394,15 @@ pub const DataService = struct {
}; };
} }
/// Check if candle data is fresh in cache without reading/deserializing. /// Check if candle data is fresh in cache without full deserialization.
pub fn isCandleCacheFresh(self: *DataService, symbol: []const u8) bool { pub fn isCandleCacheFresh(self: *DataService, symbol: []const u8) bool {
var s = self.store(); var s = self.store();
return s.isFresh(symbol, .candles_daily) catch false; const data = s.readRaw(symbol, .candles_daily) catch return false;
if (data) |d| {
defer self.allocator.free(d);
return cache.Store.isFreshData(d, self.allocator);
}
return false;
} }
/// Read only the latest close price from cached candles (no full deserialization). /// Read only the latest close price from cached candles (no full deserialization).

4
src/tui.zig
View file

@ -1637,7 +1637,7 @@ const App = struct {
self.allocator.free(h); self.allocator.free(h);
} }
if (profile.sectors) |s| { if (profile.sectors) |s| {
for (s) |sec| self.allocator.free(sec.sector); for (s) |sec| self.allocator.free(sec.name);
self.allocator.free(s); self.allocator.free(s);
} }
} }
@ -2924,7 +2924,7 @@ const App = struct {
const show = @min(sectors.len, 7); const show = @min(sectors.len, 7);
for (sectors[0..show]) |sec| { for (sectors[0..show]) |sec| {
// Truncate long sector names // Truncate long sector names
const name = if (sec.sector.len > 20) sec.sector[0..20] else sec.sector; const name = if (sec.name.len > 20) sec.name[0..20] else sec.name;
try col3.add(arena, try std.fmt.allocPrint(arena, " {d:>5.1}% {s}", .{ sec.weight * 100.0, name }), th.contentStyle()); try col3.add(arena, try std.fmt.allocPrint(arena, " {d:>5.1}% {s}", .{ sec.weight * 100.0, name }), th.contentStyle());
} }
} }