// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
import { valueToString } from '../util/pretty';
/** @ignore */ const kParent = Symbol.for('parent');
/** @ignore */ const kRowIndex = Symbol.for('rowIndex');
/** @ignore */ const kKeyToIdx = Symbol.for('keyToIdx');
/** @ignore */ const kIdxToVal = Symbol.for('idxToVal');
/** @ignore */ const kCustomInspect = Symbol.for('nodejs.util.inspect.custom');
class Row {
    constructor(parent, numKeys) {
        this[kParent] = parent;
        this.size = numKeys;
    }
    entries() { return this[Symbol.iterator](); }
    has(key) { return this.get(key) !== undefined; }
    get(key) {
        let val = undefined;
        if (key !== null && key !== undefined) {
            const ktoi = this[kKeyToIdx] || (this[kKeyToIdx] = new Map());
            let idx = ktoi.get(key);
            if (idx !== undefined) {
                const itov = this[kIdxToVal] || (this[kIdxToVal] = new Array(this.size));
                ((val = itov[idx]) !== undefined) || (itov[idx] = val = this.getValue(idx));
            }
            else if ((idx = this.getIndex(key)) > -1) {
                ktoi.set(key, idx);
                const itov = this[kIdxToVal] || (this[kIdxToVal] = new Array(this.size));
                ((val = itov[idx]) !== undefined) || (itov[idx] = val = this.getValue(idx));
            }
        }
        return val;
    }
    set(key, val) {
        if (key !== null && key !== undefined) {
            const ktoi = this[kKeyToIdx] || (this[kKeyToIdx] = new Map());
            let idx = ktoi.get(key);
            if (idx === undefined) {
                ktoi.set(key, idx = this.getIndex(key));
            }
            if (idx > -1) {
                const itov = this[kIdxToVal] || (this[kIdxToVal] = new Array(this.size));
                itov[idx] = this.setValue(idx, val);
            }
        }
        return this;
    }
    clear() { throw new Error(`Clearing ${this[Symbol.toStringTag]} not supported.`); }
    delete(_) { throw new Error(`Deleting ${this[Symbol.toStringTag]} values not supported.`); }
    *[Symbol.iterator]() {
        const ki = this.keys();
        const vi = this.values();
        const ktoi = this[kKeyToIdx] || (this[kKeyToIdx] = new Map());
        const itov = this[kIdxToVal] || (this[kIdxToVal] = new Array(this.size));
        for (let k, v, i = 0, kr, vr; !((kr = ki.next()).done || (vr = vi.next()).done); ++i) {
            k = kr.value;
            v = vr.value;
            itov[i] = v;
            ktoi.has(k) || ktoi.set(k, i);
            yield [k, v];
        }
    }
    forEach(callbackfn, thisArg) {
        const ki = this.keys();
        const vi = this.values();
        const callback = thisArg === undefined ? callbackfn :
            (v, k, m) => callbackfn.call(thisArg, v, k, m);
        const ktoi = this[kKeyToIdx] || (this[kKeyToIdx] = new Map());
        const itov = this[kIdxToVal] || (this[kIdxToVal] = new Array(this.size));
        for (let k, v, i = 0, kr, vr; !((kr = ki.next()).done || (vr = vi.next()).done); ++i) {
            k = kr.value;
            v = vr.value;
            itov[i] = v;
            ktoi.has(k) || ktoi.set(k, i);
            callback(v, k, this);
        }
    }
    toArray() { return [...this.values()]; }
    toJSON() {
        const obj = {};
        this.forEach((val, key) => obj[key] = val);
        return obj;
    }
    inspect() { return this.toString(); }
    [kCustomInspect]() { return this.toString(); }
    toString() {
        const str = [];
        this.forEach((val, key) => {
            key = valueToString(key);
            val = valueToString(val);
            str.push(`${key}: ${val}`);
        });
        return `{ ${str.join(', ')} }`;
    }
}
Row[Symbol.toStringTag] = ((proto) => {
    Object.defineProperties(proto, {
        'size': { writable: true, enumerable: false, configurable: false, value: 0 },
        [kParent]: { writable: true, enumerable: false, configurable: false, value: null },
        [kRowIndex]: { writable: true, enumerable: false, configurable: false, value: -1 },
    });
    return proto[Symbol.toStringTag] = 'Row';
})(Row.prototype);
export class MapRow extends Row {
    constructor(slice) {
        super(slice, slice.length);
        return createRowProxy(this);
    }
    keys() {
        return this[kParent].getChildAt(0)[Symbol.iterator]();
    }
    values() {
        return this[kParent].getChildAt(1)[Symbol.iterator]();
    }
    getKey(idx) {
        return this[kParent].getChildAt(0).get(idx);
    }
    getIndex(key) {
        return this[kParent].getChildAt(0).indexOf(key);
    }
    getValue(index) {
        return this[kParent].getChildAt(1).get(index);
    }
    setValue(index, value) {
        this[kParent].getChildAt(1).set(index, value);
    }
}
export class StructRow extends Row {
    constructor(parent) {
        super(parent, parent.type.children.length);
        return defineRowProxyProperties(this);
    }
    *keys() {
        for (const field of this[kParent].type.children) {
            yield field.name;
        }
    }
    *values() {
        for (const field of this[kParent].type.children) {
            yield this[field.name];
        }
    }
    getKey(idx) {
        return this[kParent].type.children[idx].name;
    }
    getIndex(key) {
        return this[kParent].type.children.findIndex((f) => f.name === key);
    }
    getValue(index) {
        return this[kParent].getChildAt(index).get(this[kRowIndex]);
    }
    setValue(index, value) {
        return this[kParent].getChildAt(index).set(this[kRowIndex], value);
    }
}
Object.setPrototypeOf(Row.prototype, Map.prototype);
/** @ignore */
const defineRowProxyProperties = (() => {
    const desc = { enumerable: true, configurable: false, get: null, set: null };
    return (row) => {
        let idx = -1, ktoi = row[kKeyToIdx] || (row[kKeyToIdx] = new Map());
        const getter = (key) => function () { return this.get(key); };
        const setter = (key) => function (val) { return this.set(key, val); };
        for (const key of row.keys()) {
            ktoi.set(key, ++idx);
            desc.get = getter(key);
            desc.set = setter(key);
            row.hasOwnProperty(key) || (desc.enumerable = true, Object.defineProperty(row, key, desc));
            row.hasOwnProperty(idx) || (desc.enumerable = false, Object.defineProperty(row, idx, desc));
        }
        desc.get = desc.set = null;
        return row;
    };
})();
/** @ignore */
const createRowProxy = (() => {
    if (typeof Proxy === 'undefined') {
        return defineRowProxyProperties;
    }
    const has = Row.prototype.has;
    const get = Row.prototype.get;
    const set = Row.prototype.set;
    const getKey = Row.prototype.getKey;
    const RowProxyHandler = {
        isExtensible() { return false; },
        deleteProperty() { return false; },
        preventExtensions() { return true; },
        ownKeys(row) { return [...row.keys()].map((x) => `${x}`); },
        has(row, key) {
            switch (key) {
                case 'getKey':
                case 'getIndex':
                case 'getValue':
                case 'setValue':
                case 'toArray':
                case 'toJSON':
                case 'inspect':
                case 'constructor':
                case 'isPrototypeOf':
                case 'propertyIsEnumerable':
                case 'toString':
                case 'toLocaleString':
                case 'valueOf':
                case 'size':
                case 'has':
                case 'get':
                case 'set':
                case 'clear':
                case 'delete':
                case 'keys':
                case 'values':
                case 'entries':
                case 'forEach':
                case '__proto__':
                case '__defineGetter__':
                case '__defineSetter__':
                case 'hasOwnProperty':
                case '__lookupGetter__':
                case '__lookupSetter__':
                case Symbol.iterator:
                case Symbol.toStringTag:
                case kParent:
                case kRowIndex:
                case kIdxToVal:
                case kKeyToIdx:
                case kCustomInspect:
                    return true;
            }
            if (typeof key === 'number' && !row.has(key)) {
                key = row.getKey(key);
            }
            return row.has(key);
        },
        get(row, key, receiver) {
            switch (key) {
                case 'getKey':
                case 'getIndex':
                case 'getValue':
                case 'setValue':
                case 'toArray':
                case 'toJSON':
                case 'inspect':
                case 'constructor':
                case 'isPrototypeOf':
                case 'propertyIsEnumerable':
                case 'toString':
                case 'toLocaleString':
                case 'valueOf':
                case 'size':
                case 'has':
                case 'get':
                case 'set':
                case 'clear':
                case 'delete':
                case 'keys':
                case 'values':
                case 'entries':
                case 'forEach':
                case '__proto__':
                case '__defineGetter__':
                case '__defineSetter__':
                case 'hasOwnProperty':
                case '__lookupGetter__':
                case '__lookupSetter__':
                case Symbol.iterator:
                case Symbol.toStringTag:
                case kParent:
                case kRowIndex:
                case kIdxToVal:
                case kKeyToIdx:
                case kCustomInspect:
                    return Reflect.get(row, key, receiver);
            }
            if (typeof key === 'number' && !has.call(receiver, key)) {
                key = getKey.call(receiver, key);
            }
            return get.call(receiver, key);
        },
        set(row, key, val, receiver) {
            switch (key) {
                case kParent:
                case kRowIndex:
                case kIdxToVal:
                case kKeyToIdx:
                    return Reflect.set(row, key, val, receiver);
                case 'getKey':
                case 'getIndex':
                case 'getValue':
                case 'setValue':
                case 'toArray':
                case 'toJSON':
                case 'inspect':
                case 'constructor':
                case 'isPrototypeOf':
                case 'propertyIsEnumerable':
                case 'toString':
                case 'toLocaleString':
                case 'valueOf':
                case 'size':
                case 'has':
                case 'get':
                case 'set':
                case 'clear':
                case 'delete':
                case 'keys':
                case 'values':
                case 'entries':
                case 'forEach':
                case '__proto__':
                case '__defineGetter__':
                case '__defineSetter__':
                case 'hasOwnProperty':
                case '__lookupGetter__':
                case '__lookupSetter__':
                case Symbol.iterator:
                case Symbol.toStringTag:
                    return false;
            }
            if (typeof key === 'number' && !has.call(receiver, key)) {
                key = getKey.call(receiver, key);
            }
            return has.call(receiver, key) ? !!set.call(receiver, key, val) : false;
        },
    };
    return (row) => new Proxy(row, RowProxyHandler);
})();

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