feat: add :LocMetrics heatmap and refactor core for LOC reduction
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+102
-1
@@ -46,6 +46,14 @@ assert_change("hello", "hello world", 6, 0)
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assert_change("héllo", "hallo", 1, 1)
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assert_change("one\ntwo", "one\nthree", 4, 2)
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assert_equal(loc._chars_to_loc(0), 0, "chars to loc zero")
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assert_equal(loc._chars_to_loc(17), 0, "chars to loc below half")
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assert_equal(loc._chars_to_loc(18), 1, "chars to loc rounds half up")
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assert_equal(loc._chars_to_loc(35), 1, "chars to loc one line")
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assert_equal(loc._chars_to_loc(52), 1, "chars to loc below one and a half")
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assert_equal(loc._chars_to_loc(53), 2, "chars to loc above one and a half")
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assert_equal(loc._chars_to_loc(-70), -2, "chars to loc negative")
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local today = vim.fn.strftime("%Y-%m-%d")
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local old_day = "2000-01-01"
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@@ -61,7 +69,7 @@ local loaded_stats = loc.stats()
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assert_equal(loaded_stats.added, 7, "loaded daily added")
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assert_equal(loaded_stats.deleted, 2, "loaded daily deleted")
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assert_equal(loaded_stats.net, 5, "loaded daily net")
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assert_equal(loc.statusline(), "LOC +5", "daily statusline")
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assert_equal(loc.statusline(), "LOC +0", "daily statusline uses estimated loc")
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loc.reset()
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@@ -90,6 +98,7 @@ vim.api.nvim_exec_autocmds("TextChangedI", { buffer = bufnr })
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local changed_stats = loc.stats()
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assert_equal(changed_stats.added, 2, "tracked edit added")
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assert_equal(changed_stats.deleted, 0, "tracked edit deleted")
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assert_equal(loc.display_stats().added, 0, "tracked edit display added")
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loc.save()
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loc.disable()
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@@ -100,4 +109,96 @@ local changed = read_json(change_path)
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assert_equal(changed[today].added, 2, "tracked edit saved today added")
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assert_equal(changed[today].deleted, 0, "tracked edit saved today deleted")
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local metrics_epoch = vim.fn.strptime("%Y-%m-%d", "2026-05-10")
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local metrics_dates = loc._metrics_dates(metrics_epoch)
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assert_equal(#metrics_dates, 28, "metrics date count")
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assert_equal(metrics_dates[1].date, "2026-04-19", "metrics first date")
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assert_equal(metrics_dates[28].date, "2026-05-16", "metrics last date")
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assert_equal(loc._metrics_color(0), "#f0b6c1", "metrics active color start")
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assert_equal(loc._metrics_color(1), "#b90f36", "metrics active color end")
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local zero_style = loc._metrics_tile_style(0, 9999)
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assert_equal(zero_style.bg, "#252628", "metrics zero tile background")
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assert_equal(zero_style.value_fg, "#e5e39a", "metrics zero value foreground")
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assert_equal(zero_style.date_fg, "#8f9096", "metrics zero date foreground")
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local low_style = loc._metrics_tile_style(2000, 9999)
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assert_equal(low_style.bg, "#edaab6", "metrics low tile background")
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assert_equal(low_style.value_fg, "#2b2529", "metrics low value foreground")
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assert_equal(low_style.date_fg, "#58565b", "metrics low date foreground")
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local high_style = loc._metrics_tile_style(9999, 9999)
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assert_equal(high_style.bg, "#b90f36", "metrics high tile background")
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assert_equal(high_style.value_fg, "#ffd6df", "metrics high value foreground")
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assert_equal(high_style.date_fg, "#f0aebb", "metrics high date foreground")
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assert_equal(loc._metrics_value(12000), "+9999", "metrics positive value clamps")
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assert_equal(loc._metrics_value(-12000), "-9999", "metrics negative value clamps")
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assert_equal(loc._metrics_value(0), "0", "metrics zero value")
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assert_equal(loc._metrics_centered_text("+7", 7), " +7 ", "metrics centered value")
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assert_equal(loc._metrics_display_date(metrics_dates[1].epoch), "04/19", "metrics display date")
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vim.api.nvim_set_hl(0, "Normal", { fg = 0x112233, bg = 0x445566 })
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vim.api.nvim_set_hl(0, "NormalFloat", { fg = 0xaabbcc, bg = 0xddeeff })
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vim.api.nvim_set_hl(0, "StatusLine", { fg = 0x778899, bg = 0x0a0b0c })
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local metrics_background = loc._metrics_background()
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assert_equal(metrics_background.fg, 0x778899, "metrics background fg from StatusLine")
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assert_equal(metrics_background.bg, 0x0a0b0c, "metrics background bg from StatusLine")
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vim.api.nvim_set_hl(0, "Normal", { fg = 0x010203, bg = 0x040506 })
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vim.api.nvim_set_hl(0, "StatusLine", {})
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metrics_background = loc._metrics_background()
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assert_equal(metrics_background.fg, 0x010203, "metrics background fg falls back to Normal")
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assert_equal(metrics_background.bg, 0x040506, "metrics background bg falls back to Normal")
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local metrics_path = vim.fn.tempname()
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write_json(metrics_path, {
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[metrics_dates[1].date] = { added = 245, deleted = 0 },
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[metrics_dates[10].date] = { added = 0, deleted = 105 },
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["2026-05-10"] = { added = 350, deleted = 0 },
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})
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loc.setup({ auto_enable = false, data_path = metrics_path, save_delay_ms = 1 })
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local entries, column_count, max_abs_net, total_net = loc._metrics_entries(metrics_epoch)
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assert_equal(#entries, 28, "metrics entry count")
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assert_equal(column_count, 4, "metrics column count")
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assert_equal(entries[1].net, 245, "metrics first entry raw net")
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assert_equal(entries[1].loc_net, 7, "metrics first entry loc net")
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assert_equal(entries[1].display_date, "04/19", "metrics first entry display date")
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assert_equal(entries[2].net, 0, "metrics missing entry net")
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assert_equal(entries[10].net, -105, "metrics negative raw entry net")
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assert_equal(entries[10].loc_net, -3, "metrics negative loc entry net")
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assert_equal(entries[22].date, "2026-05-10", "metrics current week starts with today")
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assert_equal(entries[22].column, 4, "metrics today is in current week column")
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assert_equal(entries[22].weekday, 0, "metrics today is Sunday row")
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assert_equal(entries[28].date, "2026-05-16", "metrics includes future week end")
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assert_equal(entries[28].loc_net, 0, "metrics future date loc net is zero")
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assert_equal(max_abs_net, 10, "metrics max abs net")
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assert_equal(total_net, 14, "metrics total net")
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local render = loc.metrics()
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assert_equal(vim.api.nvim_win_is_valid(render.winid), true, "metrics window is valid")
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assert_equal(vim.api.nvim_buf_is_valid(render.bufnr), true, "metrics buffer is valid")
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local metrics_lines = vim.api.nvim_buf_get_lines(render.bufnr, 0, -1, false)
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local rendered = table.concat(metrics_lines, "\n")
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assert_equal(metrics_lines[2]:match("LOC metrics") ~= nil, true, "metrics title")
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assert_equal(metrics_lines[#metrics_lines - 1]:match("4%-week net: %+14") ~= nil, true, "metrics summary")
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assert_equal(#metrics_lines, 21, "metrics renders transposed three-line week rows with row gaps and outer padding")
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assert_equal(rendered:match("%+7") ~= nil, true, "metrics renders net value")
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assert_equal(rendered:match("04/19") ~= nil, true, "metrics renders date label")
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assert_equal(rendered:match("04/20") ~= nil, true, "metrics renders zero tile date label")
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assert_equal(rendered:match("05/16") ~= nil, true, "metrics renders future date label")
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assert_equal(rendered:match("Sun") == nil, true, "metrics omits weekday labels")
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assert_equal(vim.wo[render.winid].winhl:match("LocMetricsNormal") ~= nil, true, "metrics window uses custom normal highlight")
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assert_equal(vim.wo[render.winid].winhl:match("FloatBorder") == nil, true, "metrics window does not set a border highlight")
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vim.api.nvim_win_close(render.winid, true)
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print("loc.nvim tests passed")
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