const express = require('express');

const schoolApp = express.Router();

const libs = `${process.cwd()}/libs`;

const log = require(`${libs}/log`)(module);

const squel = require('squel');

const query = require(`${libs}/middlewares/query`);

const response = require(`${libs}/middlewares/response`);

const id2str = require(`${libs}/middlewares/id2str`);

const ReqQueryFields = require(`${libs}/middlewares/reqQueryFields`);

const request = require(`request`);

const config = require(`${libs}/config`);

const cache = require('apicache').options({ debug: config.debug, statusCodes: {include: [200]} }).middleware;

let rqf = new ReqQueryFields();
let rqfCount = new ReqQueryFields();

// Return location
schoolApp.get('/year_range', cache('15 day'), (req, res, next) => {
    req.sql.from('escola')
    .field('MIN(escola.ano_censo)', 'start_year')
    .field('MAX(escola.ano_censo)', 'end_year');
    next();
}, query, response('range'));

schoolApp.get('/years', cache('15 day'), (req, res, next) => {
    req.sql.from('escola').
    field('DISTINCT escola.ano_censo', 'year');
    next();
}, query, response('years'));

schoolApp.get('/source', (req, res, next) => {
    req.sql.from('fonte')
    .field('fonte', 'source')
    .where('tabela = \'escola\'');
    next();
}, query, response('source'));

schoolApp.get('/location', cache('15 day'), (req, res, next) => {
    req.result = [
        {id: 1, name: 'Urbana'},
        {id: 2, name: 'Rural'}
    ];
    next();
}, response('location'));

schoolApp.get('/adm_dependency', (req, res, next) => {
    req.sql.from('dependencia_adm')
    .field('id')
    .field('nome', 'name')
    .where('id <= 4');
    next();
}, query, response('adm_dependency'));

schoolApp.get('/adm_dependency_detailed', cache('15 day'), (req, res, next) => {
    req.sql.from('dependencia_adm_priv')
    .field('id', 'id')
    .field('nome', 'name');
    next();
}, query, response('adm_dependency_detailed'));

schoolApp.get('/government_agreement', cache('15 day'), (req, res, next) => {
    req.result = [
        {id: null, name: 'Não Declarado'},
        {id: 0, name: 'Não'},
        {id: 1, name: 'Sim'}
    ];
    next();
}, response('government_agreement'));

schoolApp.get('/agreement', cache('15 day'), (req, res, next) => {
    req.result = [
        {id: 1, name: 'Municipal'},
        {id: 2, name: 'Estadual'},
        {id: 3, name: 'Estadual e Municipal'}
    ];
    next();
}, response('agreement'));

schoolApp.get('/education_day_care_child', (req, res, next) => {
    req.result = [
        {id: null, name: 'Não Declarado'},
        {id: 0, name: 'Não'},
        {id: 1, name: 'Sim'}
    ];
    next();
}, response('education_day_care_child'));

schoolApp.get('/education_preschool_child', cache('15 day'), (req, res, next) => {
    req.result = [
        {id: null, name: 'Não Declarado'},
        {id: 0, name: 'Não'},
        {id: 1, name: 'Sim'}
    ];
    next();
}, response('education_preschool_child'));

schoolApp.get('/education_begin_elementary_school', cache('15 day'), (req, res, next) => {
    req.result = [
        {id: null, name: 'Não Declarado'},
        {id: 0, name: 'Não'},
        {id: 1, name: 'Sim'}
    ];
    next();
}, response('education_begin_elementary_school'));

schoolApp.get('/education_end_elementary_school', cache('15 day'), (req, res, next) => {
    req.result = [
        {id: null, name: 'Não Declarado'},
        {id: 0, name: 'Não'},
        {id: 1, name: 'Sim'}
    ];
    next();
}, response('education_end_elementary_school'));

schoolApp.get('/education_middle_school', cache('15 day'), (req, res, next) => {
    req.result = [
        {id: null, name: 'Não Declarado'},
        {id: 0, name: 'Não'},
        {id: 1, name: 'Sim'}
    ];
    next();
}, response('education_middle_school'));

schoolApp.get('/education_professional', cache('15 day'), (req, res, next) => {
    req.result = [
        {id: null, name: 'Não Declarado'},
        {id: 0, name: 'Não'},
        {id: 1, name: 'Sim'}
    ];
    next();
}, response('education_professional'));

schoolApp.get('/education_eja', cache('15 day'), (req, res, next) => {
    req.result = [
        {id: null, name: 'Não Declarado'},
        {id: 0, name: 'Não'},
        {id: 1, name: 'Sim'}
    ];
    next();
}, response('education_eja'));

rqf.addField({
    name: 'filter',
    field: false,
    where: true
}).addValue({
    name: 'id',
    table: 'escola',
    tableField: 'id',
    where: {
        relation: '=',
        type: 'integer',
        field: 'id'
    }
}).addValue({
    name: 'city',
    table: 'municipio',
    tableField: 'nome',
    resultField: 'city_name',
    where: {
        relation: '=',
        type: 'integer',
        field: 'municipio_id',
        table: 'escola'
    },
    join: {
        primary: 'id',
        foreign: 'municipio_id',
        foreignTable: 'escola'
    }
}).addValue({
    name: 'state',
    table: 'estado',
    tableField: 'nome',
    resultField: 'state_name',
    where: {
        relation: '=',
        type: 'integer',
        field: 'estado_id',
        table: 'escola'
    },
    join: {
        primary: 'id',
        foreign: 'estado_id',
        foreignTable: 'escola'
    }
}).addValue({
    name: 'year',
    table: 'escola',
    tableField: 'ano_censo',
    resultField: 'year',
    where: {
        relation: '=',
        type: 'integer',
        field: 'ano_censo',
        table: 'escola'
    }
});

rqfCount.addField({
    name: 'filter',
    field: false,
    where: true
}).addField({
    name: 'dims',
    field: true,
    where: false
}).addValue({
    name: 'id',
    table: 'escola',
    tableField: 'id',
    where: {
        relation: '=',
        type: 'integer',
        field: 'id'
    }
}).addValueToField({
    name: 'city',
    table: 'municipio',
    tableField: ['nome', 'id'],
    resultField: ['city_name', 'city_id'],
    where: {
        relation: '=',
        type: 'integer',
        field: 'municipio_id',
        table: 'escola'
    },
    join: {
        primary: 'id',
        foreign: 'municipio_id',
        foreignTable: 'escola'
    }
}, 'dims').addValueToField({
    name: 'city',
    table: 'municipio',
    tableField: 'nome',
    resultField: 'city_name',
    where: {
        relation: '=',
        type: 'integer',
        field: 'municipio_id',
        table: 'escola'
    },
    join: {
        primary: 'id',
        foreign: 'municipio_id',
        foreignTable: 'escola'
    }
}, 'filter').addValue({
    name: 'state',
    table: 'estado',
    tableField: 'nome',
    resultField: 'state_name',
    where: {
        relation: '=',
        type: 'integer',
        field: 'estado_id',
        table: 'escola'
    },
    join: {
        primary: 'id',
        foreign: 'estado_id',
        foreignTable: 'escola'
    }
}).addValue({
    name: 'region',
    table: 'regiao',
    tableField: 'nome',
    resultField: 'region_name',
    where: {
        relation: '=',
        type: 'integer',
        field: 'id'
    },
    join: {
        primary: 'id',
        foreign: 'regiao_id',
        foreignTable: 'escola'
    }
}).addValue({
    name: 'year',
    table: 'escola',
    tableField: 'ano_censo',
    resultField: 'year',
    where: {
        relation: '=',
        type: 'integer',
        field: 'ano_censo',
        table: 'escola'
    }
}).addValue({
    name: 'location',
    table: 'escola',
    tableField: 'cod_localizacao',
    resultField: 'location_id',
    where: {
        relation: '=',
        type: 'integer',
        field: 'cod_localizacao'
    }
}).addValue({
    name: 'adm_dependency',
    table: 'escola',
    tableField: 'dependencia_adm_id',
    resultField: 'adm_dependency_id',
    where: {
        relation: '=',
        type: 'integer',
        field: 'dependencia_adm_id'
    }
}).addValue({
    name: 'adm_dependency_detailed',
    table: 'escola',
    tableField: 'dependencia_adm_priv',
    resultField: 'adm_dependency_detailed_id',
    where: {
        relation: '=',
        type: 'integer',
        field: 'dependencia_adm_priv'
    }
}).addValue({
    name: 'government_agreement',
    table: 'escola',
    tableField: 'conveniada_pp',
    resultField: 'government_agreement_id',
    where: {
        relation: '=',
        type: 'boolean',
        field: 'conveniada_pp'
    }
}).addValue({
    name: 'agreement',
    table: 'escola',
    tableField: 'tipo_convenio_pp',
    resultField: 'agreement_id',
    where: {
        relation: '=',
        type: 'integer',
        field: 'tipo_convenio_pp'
    }
}).addValue({
    name: 'education_day_care_child',
    table: 'escola',
    tableField: 'reg_infantil_creche',
    resultField: 'education_day_care_child_id',
    where: {
        relation: '=',
        type: 'boolean',
        field: 'reg_infantil_creche'
    }
}).addValue({
    name: 'education_preschool_child',
    table: 'escola',
    tableField: 'reg_infantil_preescola',
    resultField: 'education_preschool_child_id',
    where: {
        relation: '=',
        type: 'boolean',
        field: 'reg_infantil_preescola'
    }
}).addValue({
    name: 'education_begin_elementary_school',
    table: 'escola',
    tableField: 'reg_fund_ai',
    resultField: 'education_begin_elementary_school_id',
    where: {
        relation: '=',
        type: 'boolean',
        field: 'reg_fund_ai'
    }
}).addValue({
    name: 'education_end_elementary_school',
    table: 'escola',
    tableField: 'reg_fund_af',
    resultField: 'education_end_elementary_school_id',
    where: {
        relation: '=',
        type: 'boolean',
        field: 'reg_fund_af'
    }
}).addValue({
    name: 'education_middle_school',
    table: 'escola',
    tableField: 'reg_medio_medio',
    resultField: 'education_middle_school_id',
    where: {
        relation: '=',
        type: 'boolean',
        field: 'reg_medio_medio'
    }
}).addValue({
    name: 'education_professional',
    table: 'escola',
    tableField: 'educacao_profissional',
    resultField: 'education_professional_id',
    where: {
        relation: '=',
        type: 'boolean',
        field: 'educacao_profissional'
    }
}).addValue({
    name: 'education_eja',
    table: 'escola',
    tableField: 'ensino_eja',
    resultField: 'education_eja_id',
    where: {
        relation: '=',
        type: 'boolean',
        field: 'ensino_eja'
    }
}).addValue({
    name: 'min_year',
    table: 'escola',
    tableField: 'ano_censo',
    resultField: 'year',
    where: {
        relation: '>=',
        type: 'integer',
        field: 'ano_censo'
    }
}).addValue({
    name: 'max_year',
    table: 'escola',
    tableField: 'ano_censo',
    resultField: 'year',
    where: {
        relation: '<=',
        type: 'integer',
        field: 'ano_censo'
    }
});
schoolApp.get('/', rqf.parse(), rqf.build(), (req, res, next) => {
    if(typeof req.filter === 'undefined' || Object.keys(req.filter).length === 0) {
        res.status(400);
        next({
            status: 400,
            message: 'Wrong/No filter specified'
        });
    }
    req.sql.from('escola')
        .field('escola.id')
        .field('escola.ano_censo', 'year')
        .field('escola.nome_escola', 'name')
        .field('escola.estado_id', 'state_id')
        .field('escola.municipio_id', 'city_id');
    next();
}, query, response('school'));

schoolApp.get('/count', cache('15 day'), rqfCount.parse(), rqfCount.build(), (req, res, next) => {

    req.sql.from('escola')
        .field('COUNT(escola.id)', 'total')
        .field("'Brasil'", 'name')
        .field('escola.ano_censo', 'year')
        .group('escola.ano_censo')
        .order('escola.ano_censo')
        .where('escola.situacao_de_funcionamento = 1 AND (escola.ensino_regular = 1 OR escola.ensino_eja=1 or escola.educacao_profissional=1)');
    next();
}, query, id2str.transform(), response('school'));

schoolApp.get('/count/download', rqfCount.parse(), rqfCount.build(), (req, res, next) => {
    let username = req.query.user;
    let email = req.query.email;

    req.sql.from('escola')
    .field('*');
    let form = {
        query: req.sql.toString(),
        table: req.sql.tableFrom,
        name: req.sql.tableFrom,
        username,
        email
    };
    request.post(config.cdn.url + '/api/v1/file', {form}, (err, response, body) => {
        if(err) {
            log.error(err);
            return res.json({error: err});
        }
        console.log(body);
        res.json({msg: 'Wait for download email'});
    });
});

module.exports = schoolApp;