46 lines
1.8 KiB
Zig
46 lines
1.8 KiB
Zig
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const std = @import("std");
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const Module = @import("../module.zig");
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const Self = @This();
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module: Module,
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pub fn init(allocator: std.mem.Allocator) Self {
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return .{
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.module = .{
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.allocator = allocator,
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.getJsonFn = getJson,
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},
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};
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}
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pub fn getJson(module: *const Module) !Module.JSON {
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const self = @fieldParentPtr(Self, "module", module);
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var energy_full_file = try std.fs.openFileAbsolute("/sys/class/power_supply/BAT0/energy_full", .{});
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defer energy_full_file.close();
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var energy_now_file = try std.fs.openFileAbsolute("/sys/class/power_supply/BAT0/energy_now", .{});
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defer energy_now_file.close();
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var status_file = try std.fs.openFileAbsolute("/sys/class/power_supply/BAT0/status", .{});
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defer status_file.close();
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const energy_full_string = try energy_full_file.reader().readAllAlloc(self.module.allocator, 32);
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const energy_now_string = try energy_now_file.reader().readAllAlloc(self.module.allocator, 32);
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const status_string = try status_file.reader().readAllAlloc(self.module.allocator, 32);
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const energy_full = try std.fmt.parseInt(u32, energy_full_string[0 .. energy_full_string.len - 1], 10);
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const energy_now = try std.fmt.parseInt(u32, energy_now_string[0 .. energy_now_string.len - 1], 10);
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const status = if (std.mem.eql(u8, status_string[0 .. status_string.len - 1], "Full"))
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"="
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else if (std.mem.eql(u8, status_string[0 .. status_string.len - 1], "Discharging"))
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"v"
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else if (std.mem.eql(u8, status_string[0 .. status_string.len - 1], "Charging"))
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"^"
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else
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"?";
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const percent_left = @as(f32, @floatFromInt(energy_now)) / @as(f32, @floatFromInt(energy_full)) * 100;
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return .{
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.full_text = try std.fmt.allocPrint(self.module.allocator, "{s} {d:.2}%", .{ status, percent_left }),
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};
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}
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