import { Get, JsonController, UseBefore } from 'routing-controllers';
import { OpenAPI, ResponseSchema } from 'routing-controllers-openapi';
import { getConnection } from 'typeorm';
import StatsAuth from '../middlewares/StatsAuth';
import { Donation } from '../models/entities/Donation';
import { Runner } from '../models/entities/Runner';
import { RunnerOrganisation } from '../models/entities/RunnerOrganisation';
import { RunnerTeam } from '../models/entities/RunnerTeam';
import { Scan } from '../models/entities/Scan';
import { User } from '../models/entities/User';
import { ResponseStatsRunner } from '../models/responses/ResponseStatsRunner';

@JsonController('/stats')
export class StatsController {

    @Get()
    @OpenAPI({ description: "A very basic stats endpoint providing basic counters for a dashboard or simmilar" })
    async get() {
        let connection = getConnection();
        let runners = await connection.getRepository(Runner).find({ relations: ["scans"] });
        let teams = await connection.getRepository(RunnerTeam).find();
        let orgs = await connection.getRepository(RunnerOrganisation).find();
        let users = await connection.getRepository(User).find();
        let scans = await connection.getRepository(Scan).find();
        let donations = await connection.getRepository(Donation).find({ relations: ["runner", "runner.scans"] });
        return {
            "total_runners": runners.length,
            "total_teams": teams.length,
            "total_orgs": orgs.length,
            "total_users": users.length,
            "total_scans": scans.filter(scan => { scan.valid === true }).length,
            "total_distance": runners.reduce((sum, current) => sum + current.distance, 0),
            "total_donation_amount": donations.reduce((sum, current) => sum + current.amount, 0),
            "average_distance": runners.reduce((sum, current) => sum + current.distance, 0) / runners.length,
        };
    }

    @Get("/runners/distance")
    @UseBefore(StatsAuth)
    @ResponseSchema(ResponseStatsRunner, { isArray: true })
    @OpenAPI({ description: "Returns the top ten runners by distance.", security: [{ "StatsApiToken": [] }] })
    async getTopRunnersByDistance() {
        let runners = await getConnection().getRepository(Runner).find({ relations: ['scans', 'group'] });
        let topRunners = runners.sort((runner1, runner2) => runner1.distance - runner2.distance).slice(0, 9);
        let responseRunners: ResponseStatsRunner[] = new Array<ResponseStatsRunner>();
        topRunners.forEach(runner => {
            responseRunners.push(new ResponseStatsRunner(runner));
        });
        return responseRunners;
    }

    @Get("/runners/donations")
    @UseBefore(StatsAuth)
    @ResponseSchema(ResponseStatsRunner, { isArray: true })
    @OpenAPI({ description: "Returns the top ten runners by donations.", security: [{ "StatsApiToken": [] }] })
    async getTopRunnersByDonations() {
        let runners = await getConnection().getRepository(Runner).find({ relations: ["scans", "distanceDonations", 'group'] });
        let topRunners = runners.sort((runner1, runner2) => runner1.distanceDonationAmount - runner2.distanceDonationAmount).slice(0, 9);
        let responseRunners: ResponseStatsRunner[] = new Array<ResponseStatsRunner>();
        topRunners.forEach(runner => {
            responseRunners.push(new ResponseStatsRunner(runner));
        });
        return responseRunners;
    }

    @Get("/teams/distance")
    @UseBefore(StatsAuth)
    @OpenAPI({ description: "Returns the top ten teams by distance.", security: [{ "StatsApiToken": [] }] })
    async getTopTeamsByDistance() {
        let teams = await getConnection().getRepository(RunnerTeam).find({ relations: ["runners", "runners.scans"] });
        return teams.sort((team1, team2) => team1.distance - team2.distance).slice(0, 9);
    }

    @Get("/teams/donations")
    @UseBefore(StatsAuth)
    @OpenAPI({ description: "Returns the top ten teams by donations.", security: [{ "StatsApiToken": [] }] })
    async getTopTeamsByDonations() {
        let teams = await getConnection().getRepository(RunnerTeam).find({ relations: ["runners", "runners.scans", "runners.distanceDonations"] });
        return teams.sort((team1, team2) => team1.distanceDonationAmount - team2.distanceDonationAmount).slice(0, 9);
    }

    @Get("/organisations/distance")
    @UseBefore(StatsAuth)
    @OpenAPI({ description: "Returns the top ten organisations by distance.", security: [{ "StatsApiToken": [] }] })
    async getTopOrgsByDistance() {
        throw new Error("Not implemented yet.")
    }

    @Get("/organisations/donations")
    @UseBefore(StatsAuth)
    @OpenAPI({ description: "Returns the top ten organisations by donations.", security: [{ "StatsApiToken": [] }] })
    async getTopOrgsByDonations() {
        throw new Error("Not implemented yet.")
    }
}