local ls = require 'luasnip'
local s = ls.snippet
local t = ls.text_node
local i = ls.insert_node
local f = ls.function_node

local function get_psr4_root()
    local handle = io.popen [[php -r "echo array_keys(json_decode(file_get_contents('composer.json'), true)['autoload']['psr-4'])[0];"]]
    local ns_root = handle and handle:read '*a' or ''
    if handle then
        handle:close()
    end
    ns_root = ns_root:gsub('\\$', '') -- Remove trailing backslash
    return ns_root
end

local function psr_namespace(args, snip)
    local path = snip.env.TM_FILENAME_FULL or ''
    local composer_root = get_psr4_root()
    -- Find the directory mapped by composer.json
    local root_dir = composer_root:gsub('\\', '/')
    local ns = path:match(root_dir .. '/(.*)/[^/]+%.php$')
    if ns then
        return composer_root .. '\\' .. ns:gsub('/', '\\')
    else
        return composer_root ~= '' and composer_root or 'App'
    end
end

local function class_name(args, snip)
    local filename = snip.env.TM_FILENAME or ''
    return filename:match '([^%.]+)' or 'ClassName'
end

return {
    s('du', { t 'dump(', i(0), t ');' }),
    s('dt', { t '\\PhpStan\\dumpType(', i(0), t ');' }),
    s('ql', {
        t '\\Illuminate\\Support\\Facades\\DB::listen(function (\\Illuminate\\Database\\Events\\QueryExecuted $e) {',
        t { '', '    dump($e->sql, $e->bindings);' },
        t { '', '});' },
    }),
    s('test', {
        t 'test(',
        i(1),
        t ', function () {',
        t { '', '    ' },
        i(0),
        t { '', ');' },
    }),
    s('/**', {
        t '/**',
        t { '', ' * ' },
        i(0),
        t { '', ' */' },
    }),
    s('@p', { t '@property ', i(1), t ' $', i(0) }),
    s('@pb', { t '@property bool $', i(0) }),
    s('@ps', { t '@property string $', i(0) }),
    s('@pi', { t '@property int $', i(0) }),
    s('@pc', { t '@property \\Illuminate\\Support\\Collection<int, ', i(1), t '> $', i(0) }),
    s('@pd', { t '@property \\Illuminate\\Support\\Carbon $', i(0) }),
    s('@pp', {
        t '/**',
        t { '', ' * @property int $id' },
        t { '', ' * ' },
        i(1),
        t { '', ' * @property \\Illuminate\\Support\\Carbon $created_at' },
        t { '', ' * @property \\Illuminate\\Support\\Carbon $updated_at' },
        t { '', ' *', ' * Relationships' },
        t { '', ' * ' },
        i(0),
        t { '', ' */' },
    }),
    s('php', {
        t '<?php',
        t { '', '' },
        t 'namespace ',
        f(psr_namespace, {}),
        t ';',
        t { '', '', '/**', ' * Class ' },
        f(class_name, {}),
        t { '', ' */', 'class ' },
        f(class_name, {}),
        i(1),
        t { '', '{', '    public function __construct()', '    {', '        ' },
        i(0, '// TODO: Implement constructor'),
        t { '', '    }', '}' },
    }),
    s('pub', {
        t 'public function ',
        i(1),
        t '(',
        i(2),
        t ')',
        t { '', '{' },
        t { '', '    ' },
        i(0),
        t { '', '}' },
    }),
    s('pro', {
        t 'protected function ',
        i(1),
        t '(',
        i(2),
        t ')',
        t { '', '{' },
        t { '', '    ' },
        i(0),
        t { '', '}' },
    }),
}