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const std = @import("std");
// const GraphemeIterator = @import("ziglyph").GraphemeIterator;
// const Data = @import("grapheme").Data;
// const GraphemeIterator = @import("grapheme").Iterator;
// const codePointWidth = @import("ziglyph").display_width.codePointWidth;
// const strWidth = @import("ziglyph").display_width.strWidth;
// const Data = @import("display_width").Data;
// const codePointWidth = @import("display_width").codePointWidth;
// const strWidth = @import("display_width").strWidth;
// const CodePointIterator = @import("ziglyph").CodePointIterator;
const CodePointIterator = @import("code_point").Iterator;
// const ascii = @import("ascii");
// const ascii = std.ascii;
// const Normalizer = @import("ziglyph").Normalizer;
const NormData = @import("Normalizer").NormData;
const Normalizer = @import("Normalizer");
// const GenCatData = @import("GenCatData");
pub fn main() !void {
var args_iter = std.process.args();
_ = args_iter.skip();
const in_path = args_iter.next() orelse return error.MissingArg;
var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
defer arena.deinit();
const allocator = arena.allocator();
const input = try std.fs.cwd().readFileAlloc(allocator, in_path, std.math.maxInt(u32));
defer allocator.free(input);
var data = try NormData.init(allocator);
defer data.deinit();
var n = Normalizer{ .norm_data = &data };
// var n = try Normalizer.init(allocator);
// defer n.deinit();
// var gencat_data = try GenCatData.init(allocator);
// defer gencat_data.deinit();
// var iter = GraphemeIterator.init(input, &data);
// defer iter.deinit();
// var iter = CodePointIterator{ .bytes = input };
var iter = std.mem.splitScalar(u8, input, '\n');
var result: usize = 0;
var prev_line: []const u8 = "";
// var result: isize = 0;
var timer = try std.time.Timer.start();
// while (iter.next()) |cp| result += codePointWidth(@intCast(cp.code));
// while (iter.next()) |_| result += 1;
// while (iter.next()) |line| result += strWidth(line, &data);
// while (iter.next()) |line| {
// const nfc = try n.nfkc(allocator, line);
// result += nfc.slice.len;
// // nfc.deinit();
// }
// while (iter.next()) |cp| {
// if (cp.code == 'É') std.debug.print("`{u}` Gc: {s}\n", .{ cp.code, @tagName(gencat_data.gc(cp.code)) });
// result += 1;
// }
while (iter.next()) |line| {
if (try n.eqlIgnoreCase(allocator, prev_line, line)) {
result += line.len;
}
prev_line = line;
}
std.debug.print("result: {}, took: {}\n", .{ result, timer.lap() / std.time.ns_per_ms });
}
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