// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

;(function (mod) {
    if (typeof exports == 'object' && typeof module == 'object')
        // CommonJS
        mod(require('../../lib/codemirror'))
    else if (typeof define == 'function' && define.amd)
        // AMD
        define(['../../lib/codemirror'], mod)
    // Plain browser env
    else mod(CodeMirror)
})(function (CodeMirror) {
    'use strict'

    CodeMirror.defineMode('nginx', function (config) {
        function words(str) {
            var obj = {},
                words = str.split(' ')
            for (var i = 0; i < words.length; ++i) obj[words[i]] = true
            return obj
        }

        var keywords = words(
            /* ngxDirectiveControl */ 'break return rewrite set' +
                /* ngxDirective */ ' accept_mutex accept_mutex_delay access_log add_after_body add_before_body add_header addition_types aio alias allow ancient_browser ancient_browser_value auth_basic auth_basic_user_file auth_http auth_http_header auth_http_timeout autoindex autoindex_exact_size autoindex_localtime charset charset_types client_body_buffer_size client_body_in_file_only client_body_in_single_buffer client_body_temp_path client_body_timeout client_header_buffer_size client_header_timeout client_max_body_size connection_pool_size create_full_put_path daemon dav_access dav_methods debug_connection debug_points default_type degradation degrade deny devpoll_changes devpoll_events directio directio_alignment empty_gif env epoll_events error_log eventport_events expires fastcgi_bind fastcgi_buffer_size fastcgi_buffers fastcgi_busy_buffers_size fastcgi_cache fastcgi_cache_key fastcgi_cache_methods fastcgi_cache_min_uses fastcgi_cache_path fastcgi_cache_use_stale fastcgi_cache_valid fastcgi_catch_stderr fastcgi_connect_timeout fastcgi_hide_header fastcgi_ignore_client_abort fastcgi_ignore_headers fastcgi_index fastcgi_intercept_errors fastcgi_max_temp_file_size fastcgi_next_upstream fastcgi_param fastcgi_pass_header fastcgi_pass_request_body fastcgi_pass_request_headers fastcgi_read_timeout fastcgi_send_lowat fastcgi_send_timeout fastcgi_split_path_info fastcgi_store fastcgi_store_access fastcgi_temp_file_write_size fastcgi_temp_path fastcgi_upstream_fail_timeout fastcgi_upstream_max_fails flv geoip_city geoip_country google_perftools_profiles gzip gzip_buffers gzip_comp_level gzip_disable gzip_hash gzip_http_version gzip_min_length gzip_no_buffer gzip_proxied gzip_static gzip_types gzip_vary gzip_window if_modified_since ignore_invalid_headers image_filter image_filter_buffer image_filter_jpeg_quality image_filter_transparency imap_auth imap_capabilities imap_client_buffer index ip_hash keepalive_requests keepalive_timeout kqueue_changes kqueue_events large_client_header_buffers limit_conn limit_conn_log_level limit_rate limit_rate_after limit_req limit_req_log_level limit_req_zone limit_zone lingering_time lingering_timeout lock_file log_format log_not_found log_subrequest map_hash_bucket_size map_hash_max_size master_process memcached_bind memcached_buffer_size memcached_connect_timeout memcached_next_upstream memcached_read_timeout memcached_send_timeout memcached_upstream_fail_timeout memcached_upstream_max_fails merge_slashes min_delete_depth modern_browser modern_browser_value msie_padding msie_refresh multi_accept open_file_cache open_file_cache_errors open_file_cache_events open_file_cache_min_uses open_file_cache_valid open_log_file_cache output_buffers override_charset perl perl_modules perl_require perl_set pid pop3_auth pop3_capabilities port_in_redirect postpone_gzipping postpone_output protocol proxy proxy_bind proxy_buffer proxy_buffer_size proxy_buffering proxy_buffers proxy_busy_buffers_size proxy_cache proxy_cache_key proxy_cache_methods proxy_cache_min_uses proxy_cache_path proxy_cache_use_stale proxy_cache_valid proxy_connect_timeout proxy_headers_hash_bucket_size proxy_headers_hash_max_size proxy_hide_header proxy_ignore_client_abort proxy_ignore_headers proxy_intercept_errors proxy_max_temp_file_size proxy_method proxy_next_upstream proxy_pass_error_message proxy_pass_header proxy_pass_request_body proxy_pass_request_headers proxy_read_timeout proxy_redirect proxy_send_lowat proxy_send_timeout proxy_set_body proxy_set_header proxy_ssl_session_reuse proxy_store proxy_store_access proxy_temp_file_write_size proxy_temp_path proxy_timeout proxy_upstream_fail_timeout proxy_upstream_max_fails random_index read_ahead real_ip_header recursive_error_pages request_pool_size reset_timedout_connection resolver resolver_timeout rewrite_log rtsig_overflow_events rtsig_overflow_test rtsig_overflow_threshold rtsig_signo satisfy secure_link_secret send_lowat send_timeout sendfile sendfile_max_chunk server_name_in_redirect server_names_hash_bucket_size server_names_hash_max_size server_tokens set_real_ip_from smtp_auth smtp_capabilities smtp_client_buffer smtp_greeting_delay so_keepalive source_charset ssi ssi_ignore_recycled_buffers ssi_min_file_chunk ssi_silent_errors ssi_types ssi_value_length ssl ssl_certificate ssl_certificate_key ssl_ciphers ssl_client_certificate ssl_crl ssl_dhparam ssl_engine ssl_prefer_server_ciphers ssl_protocols ssl_session_cache ssl_session_timeout ssl_verify_client ssl_verify_depth starttls stub_status sub_filter sub_filter_once sub_filter_types tcp_nodelay tcp_nopush thread_stack_size timeout timer_resolution types_hash_bucket_size types_hash_max_size underscores_in_headers uninitialized_variable_warn use user userid userid_domain userid_expires userid_mark userid_name userid_p3p userid_path userid_service valid_referers variables_hash_bucket_size variables_hash_max_size worker_connections worker_cpu_affinity worker_priority worker_processes worker_rlimit_core worker_rlimit_nofile worker_rlimit_sigpending worker_threads working_directory xclient xml_entities xslt_stylesheet xslt_typesdrew@li229-23'
        )

        var keywords_block = words(/* ngxDirectiveBlock */ 'http mail events server types location upstream charset_map limit_except if geo map')

        var keywords_important = words(/* ngxDirectiveImportant */ 'include root server server_name listen internal proxy_pass memcached_pass fastcgi_pass try_files')

        var indentUnit = config.indentUnit,
            type
        function ret(style, tp) {
            type = tp
            return style
        }

        function tokenBase(stream, state) {
            stream.eatWhile(/[\w\$_]/)

            var cur = stream.current()

            if (keywords.propertyIsEnumerable(cur)) {
                return 'keyword'
            } else if (keywords_block.propertyIsEnumerable(cur)) {
                return 'variable-2'
            } else if (keywords_important.propertyIsEnumerable(cur)) {
                return 'string-2'
            }
            /**/

            var ch = stream.next()
            if (ch == '@') {
                stream.eatWhile(/[\w\\\-]/)
                return ret('meta', stream.current())
            } else if (ch == '/' && stream.eat('*')) {
                state.tokenize = tokenCComment
                return tokenCComment(stream, state)
            } else if (ch == '<' && stream.eat('!')) {
                state.tokenize = tokenSGMLComment
                return tokenSGMLComment(stream, state)
            } else if (ch == '=') ret(null, 'compare')
            else if ((ch == '~' || ch == '|') && stream.eat('=')) return ret(null, 'compare')
            else if (ch == '"' || ch == "'") {
                state.tokenize = tokenString(ch)
                return state.tokenize(stream, state)
            } else if (ch == '#') {
                stream.skipToEnd()
                return ret('comment', 'comment')
            } else if (ch == '!') {
                stream.match(/^\s*\w*/)
                return ret('keyword', 'important')
            } else if (/\d/.test(ch)) {
                stream.eatWhile(/[\w.%]/)
                return ret('number', 'unit')
            } else if (/[,.+>*\/]/.test(ch)) {
                return ret(null, 'select-op')
            } else if (/[;{}:\[\]]/.test(ch)) {
                return ret(null, ch)
            } else {
                stream.eatWhile(/[\w\\\-]/)
                return ret('variable', 'variable')
            }
        }

        function tokenCComment(stream, state) {
            var maybeEnd = false,
                ch
            while ((ch = stream.next()) != null) {
                if (maybeEnd && ch == '/') {
                    state.tokenize = tokenBase
                    break
                }
                maybeEnd = ch == '*'
            }
            return ret('comment', 'comment')
        }

        function tokenSGMLComment(stream, state) {
            var dashes = 0,
                ch
            while ((ch = stream.next()) != null) {
                if (dashes >= 2 && ch == '>') {
                    state.tokenize = tokenBase
                    break
                }
                dashes = ch == '-' ? dashes + 1 : 0
            }
            return ret('comment', 'comment')
        }

        function tokenString(quote) {
            return function (stream, state) {
                var escaped = false,
                    ch
                while ((ch = stream.next()) != null) {
                    if (ch == quote && !escaped) break
                    escaped = !escaped && ch == '\\'
                }
                if (!escaped) state.tokenize = tokenBase
                return ret('string', 'string')
            }
        }

        return {
            startState: function (base) {
                return { tokenize: tokenBase, baseIndent: base || 0, stack: [] }
            },

            token: function (stream, state) {
                if (stream.eatSpace()) return null
                type = null
                var style = state.tokenize(stream, state)

                var context = state.stack[state.stack.length - 1]
                if (type == 'hash' && context == 'rule') style = 'atom'
                else if (style == 'variable') {
                    if (context == 'rule') style = 'number'
                    else if (!context || context == '@media{') style = 'tag'
                }

                if (context == 'rule' && /^[\{\};]$/.test(type)) state.stack.pop()
                if (type == '{') {
                    if (context == '@media') state.stack[state.stack.length - 1] = '@media{'
                    else state.stack.push('{')
                } else if (type == '}') state.stack.pop()
                else if (type == '@media') state.stack.push('@media')
                else if (context == '{' && type != 'comment') state.stack.push('rule')
                return style
            },

            indent: function (state, textAfter) {
                var n = state.stack.length
                if (/^\}/.test(textAfter)) n -= state.stack[state.stack.length - 1] == 'rule' ? 2 : 1
                return state.baseIndent + n * indentUnit
            },

            electricChars: '}',
        }
    })

    CodeMirror.defineMIME('text/x-nginx-conf', 'nginx')
})