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path: root/keyboards/ergodox_ez/keymaps/algernon/tools/log-to-heatmap.py
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#! /usr/bin/env python
import json
import os
import sys
import re

from math import floor

cr_coord_map = [
    [
        # Row 0
        [ 4,  0], [ 4,  2], [ 2,  0], [ 1,  0], [ 2,  2], [ 3,  0], [ 3,  2],
        [ 3,  4], [ 3,  6], [ 2,  4], [ 1,  2], [ 2,  6], [ 4,  4], [ 4,  6],
    ],
    [
        # Row 1
        [ 8,  0], [ 8,  2], [ 6,  0], [ 5,  0], [ 6,  2], [ 7,  0], [ 7,  2],
        [ 7,  4], [ 7,  6], [ 6,  4], [ 5,  2], [ 6,  6], [ 8,  4], [ 8,  6],
    ],
    [
        # Row 2
        [12,  0], [12,  2], [10,  0], [ 9,  0], [10,  2], [11, 0], [     ],
        [      ], [11,  2], [10,  4], [ 9,  2], [10,  6], [12, 4], [12, 6],
    ],
    [
        # Row 3
        [17,  0], [17,  2], [15,  0], [14,  0], [15,  2], [16,  0], [13,  0],
        [13,  2], [16,  2], [15,  4], [14,  2], [15,  6], [17,  4], [17,  6],
    ],
    [
        # Row 4
        [20,  0], [20,  2], [19,  0], [18,  0], [19,  2], [], [], [], [],
        [19,  4], [18,  2], [19,  6], [20,  4], [20,  6],
    ],
    [
        # Row 5
        [     ], [23,  0], [22,  2], [22,  0], [22,  4], [21,  0], [21,  2],
        [24, 0], [24,  2], [25,  0], [25,  4], [25,  2], [26,  0], [      ],
    ],
]

def set_attr_at(j, b, n, attr, fn, val):
    blk = j[b][n]
    if attr in blk:
        blk[attr] = fn(blk[attr], val)
    else:
        blk[attr] = fn(None, val)

def coord(col, row):
    return cr_coord_map[row][col]

def set_attr(orig, new):
    return new

def set_bg(j, (b, n), color):
    set_attr_at(j, b, n, "c", set_attr, color)
    #set_attr_at(j, b, n, "g", set_attr, False)

def _set_tap_info(o, count, cap):
    ns = 4 - o.count ("\n")
    return o + "\n" * ns + "%.02f%%" % (float(count) / float(cap) * 100)

def set_tap_info(j, (b, n), count, cap):
    j[b][n + 1] = _set_tap_info (j[b][n + 1], count, cap)

def heatmap_color (v):
    colors = [ [0.3, 0.3, 1], [0.3, 1, 0.3], [1, 1, 0.3], [1, 0.3, 0.3]]
    fb = 0
    if v <= 0:
        idx1, idx2 = 0, 0
    elif v >= 1:
        idx1, idx2 = len(colors) - 1, len(colors) - 1
    else:
        val = v * (len(colors) - 1)
        idx1 = int(floor(val))
        idx2 = idx1 + 1
        fb = val - float(idx1)

    r = (colors[idx2][0] - colors[idx1][0]) * fb + colors[idx1][0]
    g = (colors[idx2][1] - colors[idx1][1]) * fb + colors[idx1][1]
    b = (colors[idx2][2] - colors[idx1][2]) * fb + colors[idx1][2]

    r, g, b = [x * 255 for x in r, g, b]
    return "#%02x%02x%02x" % (r, g, b)

# Load the keylog
def load_keylog(fname, restrict_row):
    keylog = {}
    total = 0
    with open(fname, "r") as f:
        lines = f.readlines()
    for line in lines:
        m = re.search ('KL: col=(\d+), row=(\d+)', line)
        if not m:
            continue
        (c, r) = (int(m.group (2)), int(m.group (1)))
        if restrict_row != None and r != int(restrict_row):
            continue
        if (c, r) in keylog:
            keylog[(c, r)] = keylog[(c, r)] + 1
        else:
            keylog[(c, r)] = 1
        total = total + 1
    return total / 2, keylog

def l_flat(s):
    f = s.split("\n")
    return ", ".join (f)

def main(base_fn, log_fn, restrict_row = None):

    with open(base_fn, "r") as f:
        layout = json.load (f)

    ## Reset colors
    for row in cr_coord_map:
        for col in row:
            if col != []:
                set_bg (layout, col, "#d9dae0")
                #set_attr_at (layout, col[0], col[1], "g", set_attr, True)

    total, log = load_keylog (log_fn, restrict_row)
    max_cnt = 0
    for (c, r) in log:
        max_cnt = max(max_cnt, log[(c, r)])

    # Create the heatmap
    for (c, r) in log:
        coords = coord(c, r)
        b, n = coords
        cap = max_cnt
        v = float(log[(c, r)]) / cap
        print >> sys.stderr, "%s => %d/%d => %f = %s" % (l_flat(layout[b][n+1]), log[(c,r)], cap, v, heatmap_color(v))
        set_bg (layout, coord(c, r), heatmap_color (v))
        set_tap_info (layout, coord (c, r), log[(c, r)], total)

    print json.dumps(layout)

if __name__ == "__main__":
    if len(sys.argv) < 3:
        print """Log to Heatmap -- creates a heatmap out of keyboard logs

Usage: log-to-heatmap.py base-layout.json logfile [row] >layout.json"""
        sys.exit (1)
    main(*sys.argv[1:])