'use strict';

module.exports = app => {
    class WeappFileController extends app.BaseController {

        async getSubProjectPermission(ctx, spid) {
            const sessionUser = ctx.session.sessionUser;
            
            // 如果是管理员，返回全部权限
            if (sessionUser.is_admin) {
                return ctx.service.subProjPermission.adminPermission;
            }
            
            // 否则获取用户在该子项目的权限
            const permission = await ctx.service.subProjPermission.getSubProjectUserPermission(
                spid, 
                sessionUser.accountId
            );
            
            if (!permission) {
                throw '您无权查看该项目';
            }
            
            return permission;
        }

        /**
         * 获取文件列表页面数据
         *
         * @param {Object} ctx - 上下文对象
         */
        async file(ctx) {
            try {
                const { id } = ctx.query;
                if (!id) {
                    ctx.body = { code: -1, msg: '缺少子项目ID', data: null };
                    return;
                }

                // 获取子项目信息
                const subProject = await ctx.service.subProject.getDataById(id);
                if (!subProject) {
                    ctx.body = { code: -1, msg: '子项目不存在', data: null };
                    return;
                }

                // 获取用户在该子项目的权限信息
                const permission = await this.getSubProjectPermission(ctx, id);

                // 获取有效的归档分类
                const filing = await ctx.service.filing.getValidFiling(id, permission.filing_type);
                // const filing = await ctx.service.filing.getValidFiling(id, subProject.permission.filing_type);

                // 获取所有分类数据
                const categoryData = await ctx.service.category.getAllCategory(subProject);

                // 检查权限
                const canFiling = permission.file_permission.indexOf(ctx.service.subProjPermission.PermissionConst.file.filing.value) >= 0;
                const canUpload = permission.file_permission.indexOf(ctx.service.subProjPermission.PermissionConst.file.upload.value) >= 0;
                const canEdit = permission.file_permission.indexOf(ctx.service.subProjPermission.PermissionConst.file.editfile.value) >= 0;

                // 获取文件引用列表
                const fileReferenceList = await ctx.service.subProject.getFileReference(subProject, ctx.service.subProject.FileReferenceType.file);

                ctx.body = {
                    code: 0,
                    msg: '获取成功',
                    data: {
                        filing,
                        categoryData,
                        canFiling,
                        canUpload,
                        canEdit,
                        fileReferenceList,
                    },
                };
            } catch (err) {
                this.log(err);
                ctx.body = { code: -1, msg: err.toString(), data: null };
            }
        }

        /**
         * 获取第一层级归档分类
         *
         * @param {Object} ctx - 上下文对象
         */
        async getFirstLevelFiling(ctx) {
            try {
                const { id } = ctx.query;
                if (!id) {
                    ctx.body = { code: -1, msg: '缺少子项目ID', data: null };
                    return;
                }

                // 获取子项目信息
                const subProject = await ctx.service.subProject.getDataById(id);
                if (!subProject) {
                    ctx.body = { code: -1, msg: '子项目不存在', data: null };
                    return;
                }

                // 获取有效的归档分类
                const allFiling = await ctx.service.filing.getValidFiling(id, subProject.permission.filing_type);

                // 过滤出第一层级数据
                const firstLevelFiling = allFiling.filter(item => item.tree_level === 1);

                ctx.body = {
                    code: 0,
                    msg: '获取成功',
                    data: {
                        filing: firstLevelFiling,
                    },
                };
            } catch (err) {
                this.log(err);
                ctx.body = { code: -1, msg: err.toString(), data: null };
            }
        }

    }

    return WeappFileController;
};