package com.sandu.common.file.config.minioConfig;

import com.google.gson.Gson;
import lombok.Data;

import java.util.ArrayList;
import java.util.List;

@Data
public class MinIoPolicy {

    private String Version;

    private List<MinioPolicyStatement> Statement;

    /**
     * 生成 * 通行策略
     * @return
     */
    public static String generateMinioPolicy (String bucketName) {
        MinIoPolicy policy = new MinIoPolicy();
        policy.setVersion("2012-10-17");

        List<MinioPolicyStatement> minioPolicyStatements = new ArrayList<>();
        MinioPolicyStatement statement = new MinioPolicyStatement();
        statement.setEffect("Allow");

        MinioPolicyStatementPrincipal policyStatementPrincipal = new MinioPolicyStatementPrincipal();
        List<String> aws = new ArrayList<>();
        aws.add("*");
        policyStatementPrincipal.setAWS(aws);
        statement.setPrincipal(policyStatementPrincipal);

        List<String> action = new ArrayList<>();
        action.add("s3:GetBucketLocation");
        action.add("s3:ListBucket");
        statement.setAction(action);

        List<String> resources = new ArrayList<>();
        resources.add("arn:aws:s3:::"+bucketName);
        statement.setResource(resources);

        MinioPolicyStatement statement2 = new MinioPolicyStatement();
        statement2.setEffect("Allow");
        statement2.setPrincipal(policyStatementPrincipal);

        action = new ArrayList<>();
        action.add("s3:GetObject");
        statement2.setAction(action);

        resources = new ArrayList<>();
        resources.add("arn:aws:s3:::"+bucketName+"/*");
        statement2.setResource(resources);

        minioPolicyStatements.add(statement);
        minioPolicyStatements.add(statement2);

        policy.setStatement(minioPolicyStatements);

        return new Gson().toJson(policy);
    }

}