import { ActionMiddleware, MiddlewareContext } from './pastore'


/**
 * actions log 中间件， 可以把 action 的调用情况打印出来
 */
export const logActions = function(time: boolean = true, spend: boolean = true, args: boolean = true): ActionMiddleware {
    return function (ctx: MiddlewareContext, next: Function) {
        let before = Date.now()
        next()
        let logStr = ''
        if(time) logStr += '[' + (new Date()).toLocaleTimeString() + '] '
        logStr += (ctx.store.name || '') + ' Action: ' + ctx.name + ''
        if(args){
            console.log.apply(null, [logStr, '(', ...(Array as any).from(ctx.agrs as any), ')' + (spend ? ' ' + (Date.now() - before) + 'ms ' : '')])
        }else{
            if(spend) logStr += ' ' + (Date.now() - before) + 'ms '
            console.log(logStr)
        }
    }
}

/**
 * actions 同步处理中间件
 * 可是 每个 actions 都同步
 * （1）常用，便于调试时看 redux tool 的情况
 * （2）备用，如果发现异步系统有问题，可以用它来全局抑制异步问题
 */
export const syncActions = function(onlyMutations: boolean = false): ActionMiddleware {
    return function (ctx: MiddlewareContext, next: Function) {
        next()
        if(!onlyMutations || ctx.name.match(/^mutations./)) {
            ctx.store.sync()
        }
    }
}

/**
 * actions 在 redux 浏览器插件中进行显示的中间件
 */
export const dispalyActionNamesInReduxTool = function(onlyMutations: boolean = false): ActionMiddleware {
    return function (ctx: MiddlewareContext, next: Function) {
        if(!onlyMutations || ctx.name.match(/^mutations./))
            ctx.store.currentActionName += ((ctx.store.currentActionName ? ' > ' : '') + ctx.name)
        next()
    }
}

/** 
 * actions 调用计数中间件
 */
// export const countActions = function(): ActionMiddleware {
//     return function (ctx: MiddlewareContext, next: Function) {
//         // TODO 
//     }
// }

/**
 * actions stub 组件
 */
// TODO