const Controller = require('../core/base_controller');

const fileName = "Exam";

class ExamController extends Controller {
    // 学生获取历史消息
    async getHistoryMsg() {
        const { ctx } = this;
        try {
            let rdmcode = await this.checkUid(ctx);
            if (!rdmcode) {
                this.setResponse(ctx, 401, 'token过期或错误', "none");
                return;
            }
            const uid = JSON.parse(rdmcode).uid;
            const body = ctx.request.body;
            const result = await ctx.service.exam.getHistoryMsg(uid, body);
            if (result == "error") {
                this.setResponse(ctx, 500, '服务器错误', "none");
                return;
            }
            if (result) {
                let historyMsg = [];
                result.rows.forEach(element => {
                    historyMsg.push(element.dataValues);
                });
                const data = {
                    historyMsg: historyMsg,
                    count: result.count
                };
                this.setResponse(ctx, 200, '操作成功', "deconstruction", data);
            } else {
                this.setResponse(ctx, 404, '操作失败', "none");
            }
        } catch (error) {
            const blockName = fileName + "--" + "getHistoryMsg";
            ctx.app.middleware.log('../../controllerLog', blockName + ">>>>" + error);
            this.setResponse(ctx, 500, '服务器错误', "none");
        }
    }

    // 学生删除历史消息
    async delHistoryMsg() {
        const ctx = this.ctx;
        try {
            let rdmcode = await checkUid(ctx);
            if (!rdmcode) {
                setResponse(ctx, 401, 'token过期或错误', "none");
                return;
            }
            const uid = JSON.parse(rdmcode).uid;
            const body = ctx.request.body;
            const model = decryptRequest(body.model);
            const password = decryptRequest(body.password);
            const requestMsg = body.userMsg;
            const resetList = await ctx.service.exam.delHistoryMsg(uid, model, password, requestMsg);
            if (resetList == "error") {
                setResponse(ctx, 500, '服务器错误', "none");
                return;
            }
            if (resetList) {
                setResponse(ctx, 200, '删除历史消息成功', "none");
            } else {
                setResponse(ctx, 404, '删除历史消息失败', "none");
            }
        } catch (error) {
            const blockName = fileName + "--" + "delHistoryMsg";
            ctx.app.middleware.utils.log('../../../controllerLog', blockName + ">>>>" + error);
            setResponse(ctx, 500, '服务器错误', "none");
        }
    }

    // 学生完成答题
    async answer() {
        const { ctx } = this;
        try {
            let rdmcode = await this.checkUid(ctx);
            if (!rdmcode) {
                this.setResponse(ctx, 401, 'token过期或错误', "none");
                return;
            }
            const uid = JSON.parse(rdmcode).uid;
            const body = ctx.request.body;
            const result = await ctx.service.exam.answer(uid, body);
            // await ctx.service.bind.unBindCard(uid);
            if (result == "error") {
                this.setResponse(ctx, 500, '服务器错误', "none");
                return;
            }
            if (result) {
                this.setResponse(ctx, 200, '操作成功', "none");
            } else {
                this.setResponse(ctx, 404, '操作失败', "none");
            }
        } catch (error) {
            const blockName = fileName + "--" + "answer";
            ctx.app.middleware.log('../../controllerLog', blockName + ">>>>" + error);
            this.setResponse(ctx, 500, '服务器错误', "none");
        }
    }

    // 学生查看成绩信息
    async grades() {
        const { ctx } = this;
        try {
            let rdmcode = await this.checkUid(ctx);
            if (!rdmcode) {
                this.setResponse(ctx, 401, 'token过期或错误', "none");
                return;
            }
            const uid = JSON.parse(rdmcode).uid;
            const result = await ctx.service.exam.grades(uid);
            if (result == "error") {
                this.setResponse(ctx, 500, '服务器错误', "none");
                return;
            }
            if (result) {
                const data = {
                    grades: result.dataValues
                };
                this.setResponse(ctx, 200, '操作成功', "deconstruction", data);
            } else {
                this.setResponse(ctx, 404, '操作失败', "none");
            }
        } catch (error) {
            const blockName = fileName + "--" + "grades";
            ctx.app.middleware.log('../../controllerLog', blockName + ">>>>" + error);
            this.setResponse(ctx, 500, '服务器错误', "none");
        }
    }
}

module.exports = ExamController;