throw 'Nothing here is working';

This commit is contained in:
2020-09-22 19:44:13 +10:00
parent 0d245fdeb6
commit 7982ba92b6
3 changed files with 138 additions and 95 deletions

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@@ -4,7 +4,8 @@
"description": "A simple to use graphQL clone",
"main": "source/index.js",
"scripts": {
"test": "cd test-server-books && npm install && npm run node"
"test": "cd test-server-books && npm install && npm run node",
"pokemon": "cd test-server-pokemon && npm install && npm run node"
},
"repository": {
"type": "git",

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@@ -1,17 +1,17 @@
/* DOCS: parameter types
/* DOCS: handler parameter types
parent: Type | null
scalars: [{ typeName: String, name: String, filter: any | null }, ...]
matching: Boolean
*/
//BUG: Book { author { name } } - this gives a weird result
const database = require('./database.js');
//the handler routines
const handler = {
//type queries
Author: (parent, scalars, matching) => {
console.log("Author", parent ? parent.context : null);
let authors;
//check parentage
@@ -92,8 +92,6 @@ const handler = {
},
Book: (parent, scalars, matching) => {
console.log("Book", parent ? parent.context : null);
let books;
//check parentage

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@@ -1,135 +1,179 @@
const pokemon = require('./pokemon.json');
/* DOCS: handler parameter types
parent: Type | null
scalars: [{ typeName: String, name: String, filter: any | null }, ...]
matching: Boolean
*/
const database = require('./pokemon.json');
//the handler routines
const handler = {
Pokemon: (parent, scalars) => {
//takes an object which is the result of the parent query, if there is one { typeName: String, scalars: [scalars], context: the parent object, match: I am being matched }
//takes an array of scalar types as objects: { typeName: 'String', name: 'String', match: filter }
//must return an array of objects containing the results
Pokemon: (parent, scalars, matching) => {
throw 'Nothing here is working';
let filteredPokemon = pokemon;
let pokemon = database;
//if this is a sub-query of Pokemon (a form), use the parent to narrow the search
if (parent && parent.typeName == 'Pokemon') {
//filter based on parent object
filteredPokemon = filteredPokemon.filter(poke => poke.name == parent.context.name);
filteredPokemon = filteredPokemon[0].forms;
//filter based on parent object + scalars
pokemon = pokemon.filter(poke => {
return scalars.every(scalar => poke[scalar.name] == parent.context[scalar.name]);
});
pokemon = pokemon.map(poke => poke.forms)[0];
}
//if this query has a matched scalar, filter by that match
filteredPokemon = filteredPokemon.filter(poke => {
return scalars.every(s => {
if (!s.match) {
return true;
}
//I am being matched (if true, ALL present scalars will have a filter field)
if (matching) {
//check every scalar to every poke - a single false match is a miss on that poke
pokemon = pokemon.filter(poke => {
return scalars.every(scalar => {
//handle each type of scalar
switch (scalar.typeName) {
case 'String':
case 'Integer':
case 'Float':
case 'Boolean':
return poke[scalar.name].toString() == scalar.filter; //dumb comparison for now
if (typeof poke[s.name] == 'string') {
return poke[s.name].toUpperCase() === s.match.toUpperCase(); //other filter methods, such as ranges of numbers, can also be implemented
default:
throw `Unknown scalar typeName in handler: ${scalar.typeName} (${scalar.name})`;
}
if (typeof poke[s.name] == 'number') {
return poke[s.name] == s.match;
}
//handle form-only pokemon
if (typeof poke[s.name] == 'undefined') {
return false;
}
throw 'Unknown match type in Pokemon handler';
});
});
//return all pokemon fields after filtering
const fields = scalars.map(s => s.name);
return filteredPokemon.map(p => {
const ret = {};
if (fields.includes('name')) {
ret.name = p.name;
//if there are no pokemon left, then the filters missed matches
if (pokemon.length == 0) {
return [];
}
}
if (fields.includes('height')) {
ret.height = p.height;
//scalars are being matched on their own
if (scalars.some(s => s.filter)) {
//check every scalar to every poke - a single match is a hit
pokemon = pokemon.filter(poke => {
return scalars.some(scalar => {
//handle each type of scalar
switch (scalar.typeName) {
case 'String':
case 'Integer':
case 'Float':
case 'Boolean':
console.log(scalar, poke[scalar.name]);
return poke[scalar.name].toString() == scalar.filter; //dumb comparison for now
default:
throw `Unknown scalar typeName in handler: ${scalar.typeName} (${scalar.name})`;
}
});
});
//if there are no pokemon left, then the filters missed matches
if (pokemon.length == 0) {
return [];
}
}
if (fields.includes('weight')) {
ret.weight = p.weight;
}
//process (filter out unwanted fields) and return the array of pokemon
return pokemon.map(poke => {
let ret = {};
//that's a big O(damn)
scalars.forEach(scalar => {
ret[scalar.name] = poke[scalar.name];
});
return ret;
});
},
Stats: (parent, scalars) => {
Stats: (parent, scalars, matching) => {
throw 'Nothing here is working';
if (!parent || parent.typeName != 'Pokemon') {
throw 'Stats must be inside a Pokemon query';
}
let filteredPokemon = pokemon.filter(poke => poke.base_stats !== null); //skip unknown pokemon stats
console.log(parent.scalars, scalars);
//if this is a sub-query of Pokemon, use the parent to narrow the search
filteredPokemon = filteredPokemon.filter(poke => poke.name == parent.context.name);
//skip unknown/empty pokemon stats
let pokemon = database.filter(poke => poke.base_stats != null);
//handle forms
if (filteredPokemon.length == 0) {
filteredPokemon = pokemon.filter(poke => poke.base_stats !== null); //skip unknown pokemon stats
filteredPokemon = filteredPokemon.filter(poke => {
return poke.forms.some(form => form.name == parent.context.name)
//if this is a sub-query of Pokemon (already checked), use the parent to narrow the search
pokemon = pokemon.filter(poke => {
return scalars.every(scalar => poke[scalar.name] == parent.context[scalar.name]);
});
filteredPokemon = filteredPokemon[0].forms.filter(form => form.name == parent.context.name);
//handle forms instead of normal queries
if (pokemon.length == 0) {
pokemon = database.filter(poke => poke.base_stats != null);//skip unknown/empty pokemon stats
pokemon = pokemon.map(p => p.forms);
pokemon = [].concat(...pokemon);
pokemon = pokemon.filter(poke => {
return poke.forms.some(form => {
return scalars.every(scalar => form[scalar.name] == parent.context[scalar.name]);
});
});
}
//return all pokemon fields after filtering
const fields = scalars.map(s => s.name);
return filteredPokemon.map(p => {
//BUGFIX
if (!p.base_stats) {
return null;
//I am being matched (if true, ALL present scalars will have a filter field)
if (matching) {
//check every scalar to every poke - a single false match is a miss on that poke
pokemon = pokemon.filter(poke => {
return scalars.every(scalar => {
//handle each type of scalar
switch (scalar.typeName) {
case 'Integer':
return poke.base_stats[scalar.name] === parseInt(scalar.filter); //dumb comparison for now
default:
throw `Unhandled scalar typeName in Stats handler: ${scalar.typeName} (${scalar.name})`;
}
});
});
//if there are no pokemon left, then the filters missed matches
if (pokemon.length == 0) {
return [];
}
}
const ret = {};
//scalars are being matched on their own
if (scalars.some(s => s.filter)) {
//check every scalar to every poke - a single match is a hit
pokemon = pokemon.filter(poke => {
return scalars.some(scalar => {
//handle each type of scalar
switch (scalar.typeName) {
case 'Integer':
return poke.base_stats[scalar.name] === parseInt(scalar.filter); //dumb comparison for now
if (fields.includes('hp')) {
ret.hp = p.base_stats.hp;
default:
throw `Unhandled scalar typeName in Stats handler: ${scalar.typeName} (${scalar.name})`;
}
});
});
//if there are no pokemon left, then the filters missed matches
if (pokemon.length == 0) {
return [];
}
}
if (fields.includes('attack')) {
ret.attack = p.base_stats.attack;
}
//process (filter out unwanted fields) and return the array of pokemon
return pokemon.map(poke => {
let ret = {};
if (fields.includes('defense')) {
ret.defense = p.base_stats.defense;
}
if (fields.includes('specialAttack')) {
ret.specialAttack = p.base_stats.specialAttack;
}
if (fields.includes('specialDefense')) {
ret.specialDefense = p.base_stats.specialDefense;
}
if (fields.includes('speed')) {
ret.speed = p.base_stats.speed;
}
//that's a big O(damn)
scalars.forEach(scalar => {
ret[scalar.name] = poke.base_stats[scalar.name];
});
return ret;
});
},
create: (matches, sets) => {
//TODO
},
update: (matches, sets) => {
//TODO
},
delete: matches => {
//TODO
},
};
module.exports = handler;