var escapeJsStr = require('./escapeJsStr');
var type = require('./type');
var toStr = require('./toStr');
var endWith = require('./endWith');
var toSrc = require('./toSrc');
var keys = require('./keys');
var each = require('./each');
var Class = require('./Class');
var getProto = require('./getProto');
var difference = require('./difference');
var extend = require('./extend');
var isPromise = require('./isPromise');
var filter = require('./filter');
var now = require('./now');
var allKeys = require('./allKeys');
var contain = require('./contain');
var isObj = require('./isObj');
var isMiniProgram = require('./isMiniProgram');
var create = require('./create');
var startWith = require('./startWith');
var safeSet = require('./safeSet');
var defineProp = require('./defineProp');
var pick = require('./pick');
var isArrLike = require('./isArrLike');
exports = function(obj) {
    var _ref =
            arguments.length > 1 && arguments[1] !== undefined
                ? arguments[1]
                : {},
        self = _ref.self,
        _ref$startTime = _ref.startTime,
        startTime = _ref$startTime === void 0 ? now() : _ref$startTime,
        _ref$timeout = _ref.timeout,
        timeout = _ref$timeout === void 0 ? 0 : _ref$timeout,
        _ref$depth = _ref.depth,
        depth = _ref$depth === void 0 ? 0 : _ref$depth,
        _ref$curDepth = _ref.curDepth,
        curDepth = _ref$curDepth === void 0 ? 1 : _ref$curDepth,
        _ref$visitor = _ref.visitor,
        visitor = _ref$visitor === void 0 ? new Visitor() : _ref$visitor,
        _ref$unenumerable = _ref.unenumerable,
        unenumerable = _ref$unenumerable === void 0 ? false : _ref$unenumerable,
        _ref$symbol = _ref.symbol,
        symbol = _ref$symbol === void 0 ? false : _ref$symbol,
        _ref$accessGetter = _ref.accessGetter,
        accessGetter = _ref$accessGetter === void 0 ? false : _ref$accessGetter,
        _ref$ignore = _ref.ignore,
        ignore = _ref$ignore === void 0 ? [] : _ref$ignore;
    var json = '';
    var options = {
        visitor: visitor,
        unenumerable: unenumerable,
        symbol: symbol,
        accessGetter: accessGetter,
        depth: depth,
        curDepth: curDepth + 1,
        timeout: timeout,
        startTime: startTime,
        ignore: ignore
    };
    var t = type(obj, false);
    if (t === 'String') {
        json = wrapStr(obj);
    } else if (t === 'Number') {
        json = toStr(obj);
        if (endWith(json, 'Infinity')) {
            json = '{"value":"'.concat(json, '","type":"Number"}');
        }
    } else if (t === 'NaN') {
        json = '{"value":"NaN","type":"Number"}';
    } else if (t === 'Boolean') {
        json = obj ? 'true' : 'false';
    } else if (t === 'Null') {
        json = 'null';
    } else if (t === 'Undefined') {
        json = '{"type":"Undefined"}';
    } else if (t === 'Symbol') {
        var val = 'Symbol';
        try {
            val = toStr(obj);
        } catch (e) {}
        json = '{"value":'.concat(wrapStr(val), ',"type":"Symbol"}');
    } else {
        if (timeout && now() - startTime > timeout) {
            return wrapStr('Timeout');
        }
        if (depth && curDepth > depth) {
            return wrapStr('{...}');
        }
        json = '{';
        var parts = [];
        var visitedObj = visitor.get(obj);
        var id;
        if (visitedObj) {
            id = visitedObj.id;
            parts.push('"reference":'.concat(id));
        } else {
            id = visitor.set(obj);
            parts.push('"id":'.concat(id));
        }
        parts.push('"type":"'.concat(t, '"'));
        if (endWith(t, 'Function')) {
            parts.push('"value":'.concat(wrapStr(toSrc(obj))));
        } else if (t === 'RegExp') {
            parts.push('"value":'.concat(wrapStr(obj)));
        }
        if (!visitedObj) {
            var enumerableKeys = keys(obj);
            if (enumerableKeys.length) {
                parts.push(
                    iterateObj(
                        'enumerable',
                        enumerableKeys,
                        self || obj,
                        options
                    )
                );
            }
            if (unenumerable) {
                var unenumerableKeys = difference(
                    allKeys(obj, {
                        prototype: false,
                        unenumerable: true
                    }),
                    enumerableKeys
                );
                if (unenumerableKeys.length) {
                    parts.push(
                        iterateObj(
                            'unenumerable',
                            unenumerableKeys,
                            self || obj,
                            options
                        )
                    );
                }
            }
            if (symbol) {
                var symbolKeys = filter(
                    allKeys(obj, {
                        prototype: false,
                        symbol: true
                    }),
                    function(key) {
                        return typeof key === 'symbol';
                    }
                );
                if (symbolKeys.length) {
                    parts.push(
                        iterateObj('symbol', symbolKeys, self || obj, options)
                    );
                }
            }
            var prototype = getProto(obj);
            if (prototype && !contain(ignore, prototype)) {
                var proto = '"proto":'.concat(
                    exports(
                        prototype,
                        extend(options, {
                            self: self || obj
                        })
                    )
                );
                parts.push(proto);
            }
        }
        json += parts.join(',') + '}';
    }
    return json;
};
function iterateObj(name, keys, obj, options) {
    var parts = [];
    each(keys, function(key) {
        var val;
        var descriptor = Object.getOwnPropertyDescriptor(obj, key);
        var hasGetter = descriptor && descriptor.get;
        var hasSetter = descriptor && descriptor.set;
        if (!options.accessGetter && hasGetter) {
            val = '(...)';
        } else {
            try {
                val = obj[key];
                if (contain(options.ignore, val)) {
                    return;
                }
                if (isPromise(val)) {
                    val.catch(function() {});
                }
            } catch (e) {
                val = e.message;
            }
        }
        parts.push(''.concat(wrapKey(key), ':').concat(exports(val, options)));
        if (hasGetter) {
            parts.push(
                ''
                    .concat(wrapKey('get ' + toStr(key)), ':')
                    .concat(exports(descriptor.get, options))
            );
        }
        if (hasSetter) {
            parts.push(
                ''
                    .concat(wrapKey('set ' + toStr(key)), ':')
                    .concat(exports(descriptor.set, options))
            );
        }
    });
    return '"'.concat(name, '":{') + parts.join(',') + '}';
}
function wrapKey(key) {
    return '"'.concat(escapeJsonStr(key), '"');
}
function wrapStr(str) {
    return '"'.concat(escapeJsonStr(toStr(str)), '"');
}
function escapeJsonStr(str) {
    return escapeJsStr(str)
        .replace(/\\'/g, "'")
        .replace(/\t/g, '\\t');
}
var Visitor = Class({
    initialize: function() {
        this.id = 1;
        this.visited = [];
    },
    set: function(val) {
        var visited = this.visited,
            id = this.id;
        var obj = {
            id: id,
            val: val
        };
        visited.push(obj);
        this.id++;
        return id;
    },
    get: function(val) {
        var visited = this.visited;
        for (var i = 0, len = visited.length; i < len; i++) {
            var obj = visited[i];
            if (val === obj.val) return obj;
        }
        return false;
    }
});
exports.parse = function(str) {
    var map = {};
    var obj = parse(JSON.parse(str), {
        map: map
    });
    correctReference(map);
    return obj;
};
function correctReference(map) {
    each(map, function(obj) {
        var enumerableKeys = keys(obj);
        for (var i = 0, len = enumerableKeys.length; i < len; i++) {
            var key = enumerableKeys[i];
            if (isObj(obj[key])) {
                var reference = obj[key].reference;
                if (reference && map[reference]) {
                    obj[key] = map[reference];
                }
            }
        }
        var proto = getProto(obj);
        if (proto && proto.reference) {
            if (map[proto.reference]) {
                Object.setPrototypeOf(obj, map[proto.reference]);
            }
        }
    });
}
function parse(obj, options) {
    var map = options.map;
    if (!isObj(obj)) {
        return obj;
    }
    var id = obj.id,
        type = obj.type,
        value = obj.value,
        proto = obj.proto,
        reference = obj.reference;
    var enumerable = obj.enumerable,
        unenumerable = obj.unenumerable;
    if (reference) {
        return obj;
    }
    if (type === 'Number') {
        if (value === 'Infinity') {
            return Number.POSITIVE_INFINITY;
        } else if (value === '-Infinity') {
            return Number.NEGATIVE_INFINITY;
        }
        return NaN;
    } else if (type === 'Undefined') {
        return undefined;
    }
    var newObj;
    if (type === 'Function') {
        newObj = function() {};
        newObj.toString = function() {
            return value;
        };
        if (proto) {
            Object.setPrototypeOf(newObj, parse(proto, options));
        }
    } else if (type === 'RegExp') {
        newObj = strToRegExp(value);
    } else {
        if (type !== 'Object') {
            var Fn;
            if (!isMiniProgram) {
                Fn = new Function(type, '');
            } else {
                Fn = function() {};
            }
            if (proto) {
                Fn.prototype = parse(proto, options);
            }
            newObj = new Fn();
        } else {
            if (proto) {
                newObj = create(parse(proto, options));
            } else {
                newObj = create(null);
            }
        }
    }
    var defineProps = {};
    if (enumerable) {
        var len;
        if (isArrLike(enumerable)) {
            len = enumerable.length;
            delete enumerable.length;
        }
        enumerable = pick(enumerable, function(value, key) {
            return !handleGetterSetter(enumerable, value, key);
        });
        each(enumerable, function(value, key) {
            var defineProp = defineProps[key] || {};
            if (!defineProp.get) {
                newObj[key] = parse(value, options);
            }
        });
        if (len) {
            newObj.length = len;
        }
    }
    if (unenumerable) {
        unenumerable = pick(unenumerable, function(value, key) {
            return !handleGetterSetter(unenumerable, value, key);
        });
        each(unenumerable, function(value, key) {
            var defineProp = defineProps[key] || {};
            if (!defineProp.get) {
                value = parse(value, options);
                if (isObj(value) && value.reference) {
                    var _reference = value.reference;
                    value = function() {
                        return map[_reference];
                    };
                    defineProp.get = value;
                } else {
                    defineProp.value = value;
                }
            }
            defineProp.enumerable = false;
            defineProps[key] = defineProp;
        });
    }
    defineProp(newObj, defineProps);
    function handleGetterSetter(obj, val, key) {
        key = toStr(key);
        var isGetterAndSetter = false;
        each(['get', 'set'], function(type) {
            if (startWith(key, type + ' ')) {
                var realKey = key.replace(type + ' ', '');
                if (obj[realKey]) {
                    val = parse(val, options);
                    if (val === 'Timeout') {
                        val = retTimeout;
                    }
                    safeSet(defineProps, [realKey, type], val);
                    isGetterAndSetter = true;
                }
            }
        });
        return isGetterAndSetter;
    }
    map[id] = newObj;
    return newObj;
}
function retTimeout() {
    return 'Timeout';
}
function strToRegExp(str) {
    var lastSlash = str.lastIndexOf('/');
    return new RegExp(str.slice(1, lastSlash), str.slice(lastSlash + 1));
}

module.exports = exports;