import { plugin } from '@ccms/api'
import { interfaces } from './interfaces'
import { METADATA_KEY } from './constants'

const pluginSourceCache = new Map<string, plugin.PluginMetadata>()

function getPlugins() {
    return [...getPluginMetadatas().values()].map((target) => target.target)
}

function getPlugin(name: string) {
    return getPluginMetadatas().get(name)
}

function getPluginSources() {
    let pluginSources: Map<string, plugin.PluginMetadata> = Reflect.getMetadata(
        METADATA_KEY.source,
        Reflect
    ) || pluginSourceCache
    return pluginSources
}

function getPluginMetadatas() {
    let pluginMetadatas: Map<string, plugin.PluginMetadata> = Reflect.getMetadata(
        METADATA_KEY.plugin,
        Reflect
    ) || new Map<string, plugin.PluginMetadata>()
    return pluginMetadatas
}

function getPluginMetadata(target: any) {
    let pluginMetadata: plugin.PluginMetadata = Reflect.getMetadata(
        METADATA_KEY.plugin,
        target.constructor
    ) || {}
    return pluginMetadata
}

function getPluginCommandMetadata(target: any) {
    let commandMetadata: interfaces.CommandMetadata[] = Reflect.getMetadata(
        METADATA_KEY.cmd,
        target.constructor
    ) || []
    return commandMetadata
}

function getPluginTabCompleterMetadata(target: any) {
    let tabcompleterMetadata: Map<string, interfaces.CommandMetadata> = Reflect.getMetadata(
        METADATA_KEY.tab,
        target.constructor
    ) || new Map<string, interfaces.CommandMetadata>()
    return tabcompleterMetadata
}

function getPluginListenerMetadata(target: any) {
    let listnerMetadata: interfaces.ListenerMetadata[] = Reflect.getMetadata(
        METADATA_KEY.listener,
        target.constructor
    ) || []
    return listnerMetadata
}

function getPluginConfigMetadata(target: any) {
    let configMetadata: Map<string, interfaces.ConfigMetadata> = Reflect.getMetadata(
        METADATA_KEY.config,
        target.constructor
    ) || new Map<string, interfaces.ConfigMetadata>()
    return configMetadata
}

function getPluginStageMetadata(target: any, stage: string) {
    let stageMetadata: interfaces.ExecMetadata[] = Reflect.getMetadata(
        METADATA_KEY.stage[stage],
        target.constructor
    ) || []
    return stageMetadata
}

export {
    getPlugin,
    getPlugins,
    getPluginSources,
    getPluginMetadatas,
    getPluginMetadata,
    getPluginCommandMetadata,
    getPluginTabCompleterMetadata,
    getPluginListenerMetadata,
    getPluginConfigMetadata,
    getPluginStageMetadata
}