Files
AdventOfCode2025/src/lib/days.lua

291 lines
7.6 KiB
Lua

local json = require("json")
local utils = require("utils")
local days = {}
local DAY_CACHE_PATH = CACHE_PATH .. "/days"
local PUZZLE_BASE = [[local puzzle%d = {}
function puzzle%d.solve(input)
return 0
end
return puzzle%d
]]
---@class Day
---@field day integer
---@field title string?
---@field puzzle1 boolean
---@field puzzle2 boolean
---@field results table
local Day = {day = 0, title = nil, puzzle1 = false, puzzle2 = false, results={}}
Day.__index = Day
---Creates a new Day object
---@param dayI integer
---@param puzzle1 boolean
---@param puzzle2 boolean
---@return Day
function Day.new(dayI, puzzle1, puzzle2)
local day = {}
setmetatable(day, Day)
day.day = dayI
day.puzzle1 = puzzle1
day.puzzle2 = puzzle2
day:loadResults()
return day
end
function Day:cacheDir()
return DAY_CACHE_PATH .. ("/%02d"):format(self.day)
end
---Returns the title of this day.
---
---This function looks in the following places, in order:
---1. self.title
---2. Cache directory (DAY_CACHE_PATH)
---3. HTTP request to adventofcode.com
---@return string
function Day:getTitle()
if self.title then
return self.title
end
local cachePath = self:cacheDir() .. "/name.txt"
if fs.exists(cachePath) then
local cache = fs.open(cachePath, "r")
if cache then
local title = cache.readLine()
cache.close()
if title then
self.title = title
return title
end
end
end
fs.makeDir(self:cacheDir())
local res = http.get("https://adventofcode.com/2024/day/" .. self.day)
local title = "Day " .. self.day
if res then
local body = res.readAll() or ""
local htmlTitle = body:match("%-%-%- (Day %d+: .-) %-%-%-")
if htmlTitle then
title = htmlTitle
self.title = title
local cache = fs.open(cachePath, "w")
if cache then
cache.writeLine(title)
cache.close()
end
end
end
return title
end
function Day:srcDir()
return SRC_PATH .. ("/day%02d"):format(self.day)
end
function Day:examplePath(suffix)
local filename = ("day%02d"):format(self.day)
if suffix then
filename = filename .. "_" .. suffix
end
return RES_PATH .. "/examples/" .. filename .. ".txt"
end
function Day:inputPath()
local filename = ("day%02d"):format(self.day)
return RES_PATH .. "/inputs/" .. filename .. ".txt"
end
---Creates the files for this day.
---
---This method creates the following files:
---- Script for puzzle 1
---- Script for puzzle 2
---- Example input file
---- Real input file
function Day:createFiles()
local srcDir = self:srcDir()
fs.makeDir(srcDir)
utils.writeFile(srcDir .. "/puzzle1.lua", PUZZLE_BASE:format(1, 1, 1))
utils.writeFile(srcDir .. "/puzzle2.lua", PUZZLE_BASE:format(2, 2, 2))
utils.writeFile(self:examplePath(), "")
utils.writeFile(self:inputPath(), "")
end
function Day:getExampleData(suffix)
return utils.readFile(self:examplePath(suffix))
end
function Day:getInputData()
return utils.readFile(self:inputPath())
end
function Day:getResultKey(real, puzzle, suffix)
local key = ""
if real then
key = "input"
else
key = "example"
if suffix then
key = key .. "_" .. suffix
end
end
key = key .. "-" .. puzzle
return key
end
function Day:execPuzzle(puzzleI, data, resultKey)
local path = self:srcDir() .. "/puzzle" .. puzzleI
package.loaded[path] = nil
local puzzle = require(path)
local t0 = os.epoch("local")
local result = puzzle.solve(data)
local t1 = os.epoch("local")
print(("(Executed in %.3fs)"):format((t1 - t0) / 1000))
print("Result:", result)
self.results[resultKey] = result
self:saveResults()
end
function Day:execExample(puzzleI, suffix)
local data = self:getExampleData(suffix)
return self:execPuzzle(puzzleI, data, self:getResultKey(false, puzzleI, suffix))
end
function Day:execReal(puzzleI)
local data = self:getInputData()
return self:execPuzzle(puzzleI, data, self:getResultKey(true, puzzleI))
end
function Day:choosePuzzle(real)
self:printTitle()
local choices = {
{"Puzzle 1", 1},
{"Puzzle 2", 2},
"Back"
}
local res1 = self.results[self:getResultKey(real, 1)]
local res2 = self.results[self:getResultKey(real, 2)]
if res1 then choices[1][1] = choices[1][1] .. (" - %s"):format(res1) end
if res2 then choices[2][1] = choices[2][1] .. (" - %s"):format(res2) end
local c = utils.promptChoices(choices)
return c
end
function Day:menuStars()
local solvedTxt = function (b)
if b then
return "solved"
end
return "unsolved"
end
local c0 = 1
while true do
self:printTitle()
local choices = {
{"Mark puzzle 1 as " .. solvedTxt(not self.puzzle1), 1},
{"Mark puzzle 2 as " .. solvedTxt(not self.puzzle2), 2},
"Back"
}
local c = utils.promptChoices(choices, c0)
if c == "Back" then
return
end
c0 = c
if c == 1 then
self.puzzle1 = not self.puzzle1
elseif c == 2 then
self.puzzle2 = not self.puzzle2
end
self:saveStats()
end
end
function Day:saveStats()
local path = RES_PATH .. "/stats.json"
local content = utils.readFile(path) or "{}"
local data = json.loads(content) or {}
data[("day%02d"):format(self.day)] = {
puzzle1=self.puzzle1,
puzzle2=self.puzzle2,
}
content = json.dumps(data, 4, true)
utils.writeFile(path, content, true)
end
function Day:loadResults()
local path = self:cacheDir() .. "/results.json"
local results = {}
if fs.exists(path) then
local data = utils.readFile(path)
local r = json.loads(data)
if type(r) == "table" then
results = r
end
end
self.results = results
end
function Day:saveResults()
local data = json.dumps(self.results)
fs.makeDir(self:cacheDir())
local path = self:cacheDir() .. "/results.json"
utils.writeFile(path, data, true)
end
function Day:printTitle()
term.clear()
term.setCursorPos(1, 1)
term.setTextColor(colors.green)
print(" -*- [ " .. self:getTitle() .. " ] -*-")
term.setTextColor(colors.white)
end
---Displays this day and prompts the user with possible actions
function Day:show()
while true do
self:printTitle()
if fs.exists(self:srcDir()) then
local c = utils.promptChoices({
{"Run examples", "examples"},
{"Run with real input", "inputs"},
{"Mark solved", "stars"},
{"Back to main menu", "main"}
})
if c == "main" then
return
elseif c == "stars" then
self:menuStars()
else
local puzzle = self:choosePuzzle(c == "inputs")
if puzzle ~= "Back" then
if c == "examples" then
self:execExample(puzzle)
elseif c == "inputs" then
self:execReal(puzzle)
end
utils.waitForKey(keys.enter)
end
end
else
local c = utils.promptChoices({
{"Create files", "create"},
{"Back to main menu", "main"}
})
if c == "main" then
return
elseif c == "create" then
self:createFiles()
end
end
end
end
days.Day = Day
return days