const std = @import("std");
const print = std.debug.print;
const SoundNode = @import("soundnode.zig").SoundNode;

pub const Activity = struct {

	start_tick: u32,
	end_tick: u32,
	opcode: u16,
	soundnode: *SoundNode,
	operands: [10]f16 = std.mem.zeroes([10]f16),
	
	pub fn do(self: *Activity) !void {
		switch (self.opcode) {
			0 => { try self.reset(); },
			1 => { try self.setfreq(); },
			2 => { try self.relay(); },
			3 => { try self.slide_freq(); },
			else => {},
		}
	}	
	
	pub fn reset(self: *Activity) !void {
		try self.soundnode.freqamp.reset();
	}

	pub fn setfreq(self: *Activity) !void {
		try self.soundnode.freqamp.setfreq(self.operands[0], self.operands[1]);
	}

	pub fn slide_freq(self: *Activity) !void {
		
		try self.soundnode.freqamp.reset();
		
		const init_freq: f16 = self.operands[0];
		const final_freq: f16 = self.operands[1];
		
		const timediff: u32 = self.end_tick - self.start_tick;
		const elapsed: u32 = self.soundnode.freqamp.current_tick - self.start_tick;
		const freqdiff: f128 = ((@as(f128, final_freq - init_freq))) / @as(f128, @floatFromInt(timediff));
		
		const res_freq: f16 = init_freq + @as(f16, @floatCast(freqdiff * @as(f128, @floatFromInt(elapsed)) ));
		
		try self.soundnode.freqamp.setfreq(res_freq, self.operands[2]);
		
		if (self.soundnode.freqamp.current_tick % 44100 == 0) {
			print("TIMEDIFF {d}\n", .{timediff});
			print("FREQDIFF {d}\n", .{@as(f16, @floatCast(freqdiff))});	
			print("RESFREQ {d}\n", .{res_freq});	
			self.soundnode.freqamp.prnt();
		}
	}

	pub fn relay(self: *Activity) !void {

		try self.soundnode.freqamp.reset();
		
		for (self.soundnode.wire_in.items, 0..) |wired_sn, i| {
		
			const current_index: u32 = self.soundnode.freqamp.current_index();
			const clist = wired_sn.freqamp.freqamps[current_index];

			for (clist.lst.items) |freqamp| {
				try self.soundnode.freqamp.addfreq(freqamp.freq, freqamp.r_amp);			
			}
					
			_ = i;

		}
		

	}
		
};