59 lines
1.4 KiB
D
59 lines
1.4 KiB
D
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import std.stdio;
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import std.json;
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import std.algorithm;
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import std.array;
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import std.csv;
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import std.datetime;
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import std.path;
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import std.file;
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import std.format;
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int main(string[] args) {
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if (args.length < 2) {
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stderr.writeln("Missing required first argument for FitBit directory.");
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return 1;
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}
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string fitbitDir = args[1];
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auto w = parseWeight(fitbitDir);
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writeln("Date, Weight");
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foreach (e; w) {
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writefln!"%s, %0.1f"(e.date.toISOExtString, e.weight);
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}
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return 0;
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}
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struct WeightEntry {
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Date date;
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float weight;
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}
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WeightEntry[] parseWeight(string fitbitDir) {
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string exportDataDir = buildPath(fitbitDir, "Global Export Data");
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Appender!(WeightEntry[]) app;
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foreach (DirEntry entry; dirEntries(exportDataDir, SpanMode.shallow, false)) {
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if (startsWith(baseName(entry.name), "weight")) {
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JSONValue weightArray = parseJSON(cast(string) std.file.read(entry.name));
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foreach (JSONValue weightObj; weightArray.array) {
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WeightEntry w;
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w.weight = weightObj.object["weight"].floating;
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int day, month, year;
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formattedRead!"%d/%d/%d"(weightObj.object["date"].str, month, day, year);
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w.date = Date(year + 2000, month, day);
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bool dateAlreadyExists = false;
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foreach (WeightEntry existingEntry; app[]) {
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if (existingEntry.date == w.date) {
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dateAlreadyExists = true;
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break;
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}
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}
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if (!dateAlreadyExists) app ~= w;
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}
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}
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}
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return app[]
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.sort!((a, b) => a.date < b.date)
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.array;
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}
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