tool fix

app/controller/house/v2/tool.js

@@ -238,6 +238,74 @@ class ToolController extends Controller {
         ctx.success({ results: ret });
     }
 
+    //生成购房计划
+    async generateBuyHousePlan_2_1() {
+
+        const { ctx } = this;
+        const input_parmas = ctx.request.body;
+        const rule = {
+            city_code: { type: 'string', required: true },
+            total_price: { type: 'object', required: true },
+            down_payment_rate: { type: 'string', required: true },//首付成数
+            down_payment: { type: 'string', required: true },//首付
+            invest_payment: { type: 'string', required: true },//现有现金
+            prepare_time: { type: 'string', required: true },
+            house_style: { type: 'string', required: false },
+        }
+        ctx.validate(rule, input_parmas);
+        if (!parseFloat(input_parmas.invest_payment)) {
+            ctx.failed('现有金额不能为0');
+        }
+
+        const city_code = input_parmas.city_code;
+        const total_price = input_parmas.total_price;
+        // const down_payment = parseFloat(input_parmas.down_payment);
+        const invest_payment = parseFloat(input_parmas.invest_payment);
+        const down_payment_rate = parseFloat(input_parmas.down_payment_rate);
+
+        if (!parseFloat(total_price.max) || !parseFloat(total_price.min)) {
+            ctx.failed('总价区间不能为0');
+        }
+        const house_plan = await ctx.service.house.v2.tool.generateHousePlan_2_1(input_parmas);//计算购房能力 生成购房计划
+        if (house_plan !== 2) {
+            total_price.max = invest_payment * 2 / down_payment_rate + 30;
+            total_price.min = invest_payment * 2 / down_payment_rate - 30;
+        }
+
+        let where = {
+            reference_total_price: { $between: [parseFloat(total_price.min), parseFloat(total_price.max)] },
+            option_city_code: city_code,
+            status: 'online',
+            valid: 1,
+        }
+        const recommend_houses_formats = [];
+        let recommend_houses = await ctx.realestateModel.NewHouse.list({ limit: 6, page: 1, where: where, order: [['order_id', 'desc']] });//推荐房源
+        for (let i in recommend_houses.rows) {
+            const recommend_house = recommend_houses.rows[i];
+            recommend_houses_formats.push(await ctx.service.house.v2.newHouse.formatNewHouseBasic(recommend_house));
+        }
+        recommend_houses = recommend_houses_formats.splice(0, 6);
+
+
+        const headers = {
+            cookie: ctx.request.headers.cookie
+        }
+
+        const banners_result = await ctx.helper.send_request(this.config.NODE_BASE_URL + '/51app/api/block/all', { alias: '51fangc_tool_plan_banners' }, { method: 'GET', dataType: 'json', headers: headers });
+        let banners = [];
+        if (banners_result.status === 200) {
+            banners = banners_result.data.results;
+        }
+
+        const ret = {
+            house_plan,
+            banners,
+            recommend_houses,
+        }
+
+        ctx.success({ results: ret });
+    }
+
     //购房计划城市区域列表
     async planAreaList() {
 

app/router/house.js

@@ -51,6 +51,7 @@ module.exports = app => {
     //房产v2
     router.get('/v2/tool/:house_style/:area_code/:level', 'house.v2.tool.getMapPoint');//购房计划地图点位(存钱罐地图)（房价地图）
     router.post('/v2/tool/plan', 'house.v2.tool.generateBuyHousePlan');//生成购房计划
+    router.post('/v2.1/tool/plan', 'house.v2.tool.generateBuyHousePlan_2_1');//生成购房计划
     router.get('/v2/tool/plan_area_list', 'house.v2.tool.planAreaList');//购房计划页面 区域列表接口
     router.get('/v2/tool/:type/:city_code', 'house.v2.tool.getHousePriceFeature');//房价走势图 房价涨跌图 购房资格图、贷款额度问答、供需趋势图
     router.post('/v2/tool/calculate_price', 'house.tool.calculateHousePrice');//房产估价

app/service/house/v2/tool.js

@@ -111,6 +111,42 @@ class ToolService extends Service {
 
         return { status, notice, invest_items };
     }
+
+    //存钱罐计算完毕后 生成购房计划
+    async generateHousePlan_2_1(input) {
+
+        const { ctx } = this;
+        const down_payment = input.down_payment || 0;//首付金额
+        const invest_payment = input.invest_payment || 0;//投资金额
+        const prepare_time = input.prepare_time || 6;
+        const balance = down_payment - invest_payment;
+        let notice = '';
+        let status = 0;
+        let invest_items = [];
+        if (balance <= 0) {
+            status = 2;//完全有能力买到房
+            notice = '您的资金已满足本项目首付条件，还有更多项目在您预算范围内。一键预约，轻松看房！';
+            return { status, notice, invest_items };
+        }
+        const rate = balance / invest_payment;
+        if (rate > 10) {
+            status = 0;//完全没有希望能买到房
+            notice = '非常遗憾，您的首付预算距离购买该项目尚有较大差距，请修改购房计划，重新尝试！';
+        } else {
+            status = 1;//加把劲还是有希望买到房
+            notice = '恭喜您！依据以上计划，您即将完成此项目首付款准备。您现阶段首付预算可以购买以下项目房源：';
+            const invest_plans = await ctx.blockModel.HouseInvestPlan.one({ where: { condition_min: { $lt: rate }, condition_max: { $gte: rate }, status: 'online', valid: 1, period: prepare_time } });
+            if (Object.keys(invest_plans).length !== 0 && invest_plans.items) {
+                invest_items = invest_plans.items;
+                if (invest_items.length === 0) {//差距还是太大 投资期限过长 不宜买房
+                    status = 0;
+                    notice = '非常遗憾，您的首付预算距离购买该项目尚有较大差距，请修改购房计划，重新尝试！';
+                }
+            }
+        }
+
+        return { status, notice, invest_items };
+    }
 }
 
 module.exports = ToolService;