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import { DataType, QueryError } from '../interfaces.ts';import { _IType } from '../interfaces-private.ts';import { Box, Circle, Line, Path, Point, Polygon, Segment } from 'https://deno.land/x/pgsql_ast_parser@12.0.1/mod.ts';import { Evaluator } from '../evaluator.ts';import { TypeBase } from './datatype-base.ts';
export function pointToStr(p: Point) {    return `(${p.x},${p.y})`;}
export function pointEq(a: Point, b: Point) {    return a.x === b.x && a.y === b.y;}
export class PointType extends TypeBase<Point> {    get primary(): DataType {        return DataType.point;    }    get name() {        return 'point';    }    doCanCast(t: _IType) {        return t.primary === DataType.text;    }
    doCast(value: Evaluator<Point>, to: _IType) {        if (to.primary !== DataType.text) {            throw new QueryError(`Invalid cast to: ` + to.primary);        }        return value            .setConversion((p: Point) => {                return pointToStr(p);            }                , pointToTxt => ({ pointToTxt }));    }
    doEquals(a: Point, b: Point) {        return pointEq(a, b);    }
    doGt(a: Point, b: Point) {        if (a.x !== b.x) {            return a.x > b.x;        }        return a.y > b.y;    }
    doLt(a: Point, b: Point) {        if (a.x !== b.x) {            return a.x < b.x;        }        return a.y < b.y;    }}


export class LineType extends TypeBase<Line> {
    get primary(): DataType {        return DataType.line;    }    get name() {        return 'line';    }    doCanCast(t: _IType) {        return t.primary === DataType.text;    }
    doCast(value: Evaluator<Line>, to: _IType) {        if (to.primary !== DataType.text) {            throw new QueryError(`Invalid cast to: ` + to.primary);        }        return value            .setConversion((l: Line) => {                return `{${l.a},${l.b},${l.c}}`;            }                , lineToTxt => ({ lineToTxt }));    }
    doEquals(a: Line, b: Line) {        return a.a === b.a && a.b === b.b && a.c === b.c;    }}
export class LsegType extends TypeBase<Segment> {
    get primary(): DataType {        return DataType.lseg;    }    get name() {        return 'lseg';    }    doCanCast(t: _IType) {        return t.primary === DataType.text;    }
    doCast(value: Evaluator<Segment>, to: _IType) {        if (to.primary !== DataType.text) {            throw new QueryError(`Invalid cast to: ` + to.primary);        }        return value            .setConversion(([a, b]: Segment) => {                return `[${pointToStr(a)},${pointToStr(b)}]`;            }                , SegmentToTxt => ({ SegmentToTxt }));    }
    doEquals([as, ae]: Segment, [bs, be]: Segment) {        return pointEq(as, bs) && pointEq(ae, be);    }}
export class BoxType extends TypeBase<Box> {
    get primary(): DataType {        return DataType.box;    }    get name() {        return 'box';    }    doCanCast(t: _IType) {        return t.primary === DataType.text;    }
    doCast(value: Evaluator<Box>, to: _IType) {        if (to.primary !== DataType.text) {            throw new QueryError(`Invalid cast to: ` + to.primary);        }        return value            .setConversion(([a, b]: Box) => {                return `${pointToStr(a)},${pointToStr(b)}`;            }                , BoxToTxt => ({ BoxToTxt }));    }
    doEquals([as, ae]: Box, [bs, be]: Box) {        return pointEq(as, bs) && pointEq(ae, be);    }}
export class PathType extends TypeBase<Path> {
    get primary(): DataType {        return DataType.path;    }    get name() {        return 'path';    }    doCanCast(t: _IType) {        return t.primary === DataType.text;    }
    doCast(value: Evaluator<Path>, to: _IType) {        if (to.primary !== DataType.text) {            throw new QueryError(`Invalid cast to: ` + to.primary);        }        return value            .setConversion((p: Path) => {                const vals = p.path.map(pointToStr).join(',');                return p.closed                    ? '(' + vals + ')'                    : '[' + vals + ']';            }                , PathToTxt => ({ PathToTxt }));    }
    doEquals(a: Path, b: Path) {        // Yup, you read that right ...        //  Try it... path equality always returns true (???)        return true;        // return !!a.closed === !!b.closed        //     && a.path.length === b.path.length        //     && a.path.every((x, i) => pointEq(x, b.path[i]));    }}
export class PolygonType extends TypeBase<Polygon> {
    get primary(): DataType {        return DataType.polygon;    }    get name() {        return 'polygon';    }    doCanCast(t: _IType) {        return t.primary === DataType.text;    }
    doCast(value: Evaluator<Polygon>, to: _IType) {        if (to.primary !== DataType.text) {            throw new QueryError(`Invalid cast to: ` + to.primary);        }        return value            .setConversion((p: Polygon) => {                const vals = p.map(pointToStr).join(',');                return '(' + vals + ')';            }                , PolygonToTxt => ({ PolygonToTxt }));    }
    doEquals(a: Polygon, b: Polygon) {        return a.length === b.length            && a.every((x, i) => pointEq(x, b[i]));    }}

export class CircleType extends TypeBase<Circle> {
    get primary(): DataType {        return DataType.circle;    }    get name() {        return 'circle';    }    doCanCast(t: _IType) {        return t.primary === DataType.text;    }
    doCast(value: Evaluator<Circle>, to: _IType) {        if (to.primary !== DataType.text) {            throw new QueryError(`Invalid cast to: ` + to.primary);        }        return value            .setConversion((p: Circle) => {                return `<${pointToStr(p.c)},${p.r}>`            }                , CircleToTxt => ({ CircleToTxt }));    }
    doEquals(a: Circle, b: Circle) {        return pointEq(a.c, b.c) && a.r === b.r;    }}