#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
use t::APISIX 'no_plan';

repeat_each(1);
no_long_string();
no_root_location();
no_shuffle();
log_level("info");
workers(2);

add_block_preprocessor(sub {
    my ($block) = @_;

    if (!defined $block->no_error_log) {
        $block->set_value("no_error_log", "[error]");
    }

    $block;
});

run_tests;

__DATA__

=== TEST 1: reload plugins
--- config
location /t {
    content_by_lua_block {
        local t = require("lib.test_admin").test
        -- now the plugin will be loaded twice,
        -- one during startup and the other one by reload
        local code, _, org_body = t('/apisix/admin/plugins/reload',
                                    ngx.HTTP_PUT)

        ngx.status = code
        ngx.say(org_body)
        ngx.sleep(0.2)
    }
}
--- request
GET /t
--- response_body
done
--- grep_error_log eval
qr/sync local conf to etcd/
--- grep_error_log_out
sync local conf to etcd
--- error_log
load plugin times: 2
load plugin times: 2
start to hot reload plugins
start to hot reload plugins



=== TEST 2: reload plugins triggers plugin list sync
--- config
location /t {
    content_by_lua_block {
        local core = require "apisix.core"
        local config_util   = require("apisix.core.config_util")
        ngx.sleep(0.5) -- make sure the sync happened when admin starts is already finished

        local before_reload = true
        local plugins_conf, err
        plugins_conf, err = core.config.new("/plugins", {
            automatic = true,
            single_item = true,
            filter = function(item)
                -- called once before reload for sync data from admin
                ngx.log(ngx.WARN, "reload plugins on node ",
                        before_reload and "before reload" or "after reload")
                ngx.log(ngx.WARN, require("toolkit.json").encode(item.value))
            end,
        })
        if not plugins_conf then
            error("failed to create etcd instance for fetching /plugins : "
                .. err)
        end
        ngx.sleep(0.5)

        local data = [[
apisix:
  node_listen: 1984
  admin_key: null
plugins:
    - jwt-auth
stream_plugins:
    - mqtt-proxy
        ]]
        require("lib.test_admin").set_config_yaml(data)

        before_reload = false
        local t = require("lib.test_admin").test
        local code, _, org_body = t('/apisix/admin/plugins/reload',
                                    ngx.HTTP_PUT)

        ngx.status = code
        ngx.say(org_body)
        ngx.sleep(1)
    }
}
--- request
GET /t
--- response_body
done
--- grep_error_log eval
qr/reload plugins on node \w+ reload/
--- grep_error_log_out
reload plugins on node before reload
reload plugins on node after reload
--- error_log
filter(): [{"name":"jwt-auth"},{"name":"mqtt-proxy","stream":true}]



=== TEST 3: reload plugins when attributes changed
--- yaml_config
apisix:
  node_listen: 1984
  admin_key: null
plugins:
    - example-plugin
plugin_attr:
    example-plugin:
        val: 0
--- config
location /t {
    content_by_lua_block {
        local core = require "apisix.core"
        ngx.sleep(0.1)
        local data = [[
apisix:
  node_listen: 1984
  admin_key: null
plugins:
    - example-plugin
plugin_attr:
    example-plugin:
        val: 1
        ]]
        require("lib.test_admin").set_config_yaml(data)

        local t = require("lib.test_admin").test
        local code, _, org_body = t('/apisix/admin/plugins/reload',
                                    ngx.HTTP_PUT)

        ngx.status = code
        ngx.say(org_body)
        ngx.sleep(0.1)

        local data = [[
apisix:
  node_listen: 1984
  admin_key: null
plugins:
    - example-plugin
plugin_attr:
    example-plugin:
        val: 1
        ]]
        require("lib.test_admin").set_config_yaml(data)

        local t = require("lib.test_admin").test
        local code, _, org_body = t('/apisix/admin/plugins/reload',
                                    ngx.HTTP_PUT)
        ngx.say(org_body)
        ngx.sleep(0.1)
    }
}
--- request
GET /t
--- response_body
done
done
--- grep_error_log eval
qr/example-plugin get plugin attr val: \d+/
--- grep_error_log_out
example-plugin get plugin attr val: 0
example-plugin get plugin attr val: 0
example-plugin get plugin attr val: 0
example-plugin get plugin attr val: 1
example-plugin get plugin attr val: 1
example-plugin get plugin attr val: 1
example-plugin get plugin attr val: 1
example-plugin get plugin attr val: 1
example-plugin get plugin attr val: 1



=== TEST 4: reload plugins to change prometheus' export uri
--- yaml_config
apisix:
  node_listen: 1984
  admin_key: null
plugins:
  - prometheus
plugin_attr:
  prometheus:
    export_uri: /metrics
--- config
location /t {
    content_by_lua_block {
        local core = require "apisix.core"
        ngx.sleep(0.1)
        local t = require("lib.test_admin").test
        local code, _, org_body = t('/apisix/metrics',
                                    ngx.HTTP_GET)
        ngx.say(code)

        local data = [[
apisix:
  node_listen: 1984
  admin_key: null
plugins:
  - prometheus
plugin_attr:
  prometheus:
    export_uri: /apisix/metrics
        ]]
        require("lib.test_admin").set_config_yaml(data)

        local code, _, org_body = t('/apisix/admin/plugins/reload',
                                    ngx.HTTP_PUT)

        ngx.say(org_body)

        ngx.sleep(0.1)
        local code, _, org_body = t('/apisix/metrics',
                                    ngx.HTTP_GET)
        ngx.say(code)
    }
}
--- request
GET /t
--- response_body
404
done
200



=== TEST 5: reload plugins to disable skywalking
--- yaml_config
apisix:
  node_listen: 1984
  admin_key: null
plugins:
  - skywalking
plugin_attr:
  skywalking:
    service_name: APISIX
    service_instance_name: "APISIX Instance Name"
    endpoint_addr: http://127.0.0.1:12801
    report_interval: 1
--- config
location /t {
    content_by_lua_block {
        local core = require "apisix.core"
        ngx.sleep(1.2)
        local t = require("lib.test_admin").test

        local data = [[
apisix:
  node_listen: 1984
  admin_key: null
plugins:
  - prometheus
        ]]
        require("lib.test_admin").set_config_yaml(data)

        local code, _, org_body = t('/apisix/admin/plugins/reload',
                                    ngx.HTTP_PUT)

        ngx.say(org_body)

        ngx.sleep(2)
    }
}
--- request
GET /t
--- response_body
done
--- no_error_log
[alert]
--- grep_error_log eval
qr/Instance report fails/
--- grep_error_log_out
Instance report fails



=== TEST 6: check disabling plugin via etcd
--- config
    location /t {
        content_by_lua_block {
            local t = require("lib.test_admin").test
            local code, body = t('/apisix/admin/routes/1',
                 ngx.HTTP_PUT,
                 [[{
                        "plugins": {
                            "echo": {
                                "body":"hello upstream\n"
                            }
                        },
                        "upstream": {
                            "nodes": {
                                "127.0.0.1:1980": 1
                            },
                            "type": "roundrobin"
                        },
                        "uri": "/hello"
                }]]
                )

            if code >= 300 then
                ngx.status = code
            end
            ngx.say(body)
        }
    }
--- request
GET /t
--- response_body
passed



=== TEST 7: hit
--- yaml_config
apisix:
  node_listen: 1984
  enable_admin: false
--- request
GET /hello
--- response_body
hello upstream



=== TEST 8: hit after disabling echo
--- yaml_config
apisix:
  node_listen: 1984
  enable_admin: false
--- config
location /t {
    content_by_lua_block {
        local t = require("lib.test_admin").test
        local etcd = require("apisix.core.etcd")
        assert(etcd.set("/plugins", {{name = "jwt-auth"}}))

        ngx.sleep(0.2)

        local http = require "resty.http"
        local httpc = http.new()
        local uri = "http://127.0.0.1:" .. ngx.var.server_port
                    .. "/hello"
        local res, err = httpc:request_uri(uri)
        if not res then
            ngx.say(err)
            return
        end
        ngx.print(res.body)
    }
}
--- request
GET /t
--- response_body
hello world