253 lines
7.4 KiB
Lua
253 lines
7.4 KiB
Lua
local M = {}
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local cache = require('cp.cache')
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local config_module = require('cp.config')
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local logger = require('cp.log')
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local scraper = require('cp.scraper')
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local state = require('cp.state')
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local constants = require('cp.constants')
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local platforms = constants.PLATFORMS
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function M.set_platform(platform)
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if not vim.tbl_contains(platforms, platform) then
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logger.log(
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('unknown platform: %s. supported: %s'):format(platform, table.concat(platforms, ', ')),
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vim.log.levels.ERROR
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)
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return false
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end
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if state.get_platform() == platform then
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logger.log(('platform already set to %s'):format(platform))
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else
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state.set_platform(platform)
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logger.log(('platform set to %s'):format(platform))
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end
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return true
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end
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function M.setup_contest(platform, contest_id, problem_id, language)
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if not state.get_platform() then
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logger.log('no platform set', vim.log.levels.ERROR)
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return
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end
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local config = config_module.get_config()
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if not vim.tbl_contains(config.scrapers, platform) then
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logger.log('scraping disabled for ' .. platform, vim.log.levels.WARN)
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return
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end
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logger.log('fetching contests problems...', vim.log.levels.INFO, true)
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scraper.scrape_contest_metadata(platform, contest_id, function(result)
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if not result.success then
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logger.log(
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'failed to load contest metadata: ' .. (result.error or 'unknown error'),
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vim.log.levels.ERROR
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)
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return
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end
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local problems = result.problems
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if not problems or #problems == 0 then
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logger.log('no problems found in contest', vim.log.levels.ERROR)
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return
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end
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logger.log(('found %d problems'):format(#problems))
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state.set_contest_id(contest_id)
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local target_problem = problem_id or problems[1].id
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if problem_id then
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local problem_exists = false
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for _, prob in ipairs(problems) do
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if prob.id == problem_id then
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problem_exists = true
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break
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end
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end
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if not problem_exists then
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logger.log(
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('invalid problem %s for contest %s'):format(problem_id, contest_id),
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vim.log.levels.ERROR
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)
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return
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end
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end
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M.setup_problem(contest_id, target_problem, language)
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M.scrape_remaining_problems(platform, contest_id, problems)
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end)
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end
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function M.setup_problem(contest_id, problem_id, language)
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if not state.get_platform() then
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logger.log('no platform set. run :CP <platform> <contest> first', vim.log.levels.ERROR)
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return
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end
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local config = config_module.get_config()
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local platform = state.get_platform() or ''
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logger.log(('setting up problem %s%s...'):format(contest_id, problem_id or ''))
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state.set_contest_id(contest_id)
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state.set_problem_id(problem_id)
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-- TODO: why comment this out
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-- state.set_active_panel('run')
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vim.schedule(function()
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local ok, err = pcall(function()
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vim.cmd.only({ mods = { silent = true } })
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local source_file = state.get_source_file(language)
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if not source_file then
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return
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end
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vim.cmd.e(source_file)
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local source_buf = vim.api.nvim_get_current_buf()
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if vim.api.nvim_buf_get_lines(source_buf, 0, -1, true)[1] == '' then
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local has_luasnip, luasnip = pcall(require, 'luasnip')
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if has_luasnip then
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local filetype = vim.api.nvim_get_option_value('filetype', { buf = source_buf })
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local language_name = constants.filetype_to_language[filetype]
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local canonical_language = constants.canonical_filetypes[language_name] or language_name
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local prefixed_trigger = ('cp.nvim/%s.%s'):format(platform, canonical_language)
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vim.api.nvim_buf_set_lines(0, 0, -1, false, { prefixed_trigger })
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vim.api.nvim_win_set_cursor(0, { 1, #prefixed_trigger })
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vim.cmd.startinsert({ bang = true })
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vim.schedule(function()
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if luasnip.expandable() then
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luasnip.expand()
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else
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vim.api.nvim_buf_set_lines(0, 0, 1, false, { '' })
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vim.api.nvim_win_set_cursor(0, { 1, 0 })
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end
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vim.cmd.stopinsert()
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end)
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else
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vim.api.nvim_input(('i%s<c-space><esc>'):format(platform))
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end
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end
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if config.hooks and config.hooks.setup_code then
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config.hooks.setup_code(state)
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end
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cache.set_file_state(vim.fn.expand('%:p'), platform, contest_id, problem_id, language)
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logger.log(('ready - problem %s'):format(state.get_base_name()))
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end)
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if not ok then
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logger.log(('setup error: %s'):format(err), vim.log.levels.ERROR)
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end
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end)
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local cached_tests = cache.get_test_cases(platform, contest_id, problem_id)
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if cached_tests then
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state.set_test_cases(cached_tests)
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logger.log(('using cached test cases (%d)'):format(#cached_tests))
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elseif vim.tbl_contains(config.scrapers, platform) then
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logger.log('loading test cases...')
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scraper.scrape_problem_tests(platform, contest_id, problem_id, function(result)
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if result.success then
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logger.log(('loaded %d test cases for %s'):format(#(result.tests or {}), problem_id))
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if state.get_problem_id() == problem_id then
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state.set_test_cases(result.tests)
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end
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else
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logger.log(
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'failed to load tests: ' .. (result.error or 'unknown error'),
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vim.log.levels.ERROR
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)
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if state.get_problem_id() == problem_id then
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state.set_test_cases({})
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end
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end
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end)
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else
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logger.log(('scraping disabled for %s'):format(platform))
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state.set_test_cases({})
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end
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end
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function M.scrape_remaining_problems(platform, contest_id, problems)
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cache.load()
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local missing_problems = {}
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for _, prob in ipairs(problems) do
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local cached_tests = cache.get_test_cases(platform, contest_id, prob.id)
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if not cached_tests then
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table.insert(missing_problems, prob)
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end
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end
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if #missing_problems == 0 then
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logger.log('all problems already cached')
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return
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end
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logger.log(('caching %d remaining problems...'):format(#missing_problems))
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for _, prob in ipairs(missing_problems) do
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scraper.scrape_problem_tests(platform, contest_id, prob.id, function(result)
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if result.success then
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logger.log(('background: scraped problem %s'):format(prob.id))
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end
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end)
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end
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end
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function M.navigate_problem(direction, language)
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local platform = state.get_platform()
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local contest_id = state.get_contest_id()
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local current_problem_id = state.get_problem_id()
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if not platform or not contest_id or not current_problem_id then
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logger.log('no contest context', vim.log.levels.ERROR)
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return
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end
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cache.load()
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local contest_data = cache.get_contest_data(platform, contest_id)
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if not contest_data or not contest_data.problems then
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logger.log('no contest data available', vim.log.levels.ERROR)
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return
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end
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local problems = contest_data.problems
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local current_index = nil
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for i, prob in ipairs(problems) do
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if prob.id == current_problem_id then
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current_index = i
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break
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end
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end
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if not current_index then
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logger.log('current problem not found in contest', vim.log.levels.ERROR)
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return
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end
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local new_index = current_index + direction
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if new_index < 1 or new_index > #problems then
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logger.log('no more problems in that direction', vim.log.levels.WARN)
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return
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end
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local new_problem = problems[new_index]
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M.setup_problem(contest_id, new_problem.id, language)
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end
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return M
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