-- name: GetWorkspaceAgentByID :one
SELECT
	*
FROM
	workspace_agents
WHERE
	id = $1;

-- name: GetWorkspaceAgentByInstanceID :one
SELECT
	*
FROM
	workspace_agents
WHERE
	auth_instance_id = @auth_instance_id :: TEXT
ORDER BY
	created_at DESC;

-- name: GetWorkspaceAgentsByResourceIDs :many
SELECT
	*
FROM
	workspace_agents
WHERE
	resource_id = ANY(@ids :: uuid [ ]);

-- name: GetWorkspaceAgentsCreatedAfter :many
SELECT * FROM workspace_agents WHERE created_at > $1;

-- name: InsertWorkspaceAgent :one
INSERT INTO
	workspace_agents (
		id,
		created_at,
		updated_at,
		name,
		resource_id,
		auth_token,
		auth_instance_id,
		architecture,
		environment_variables,
		operating_system,
		directory,
		instance_metadata,
		resource_metadata,
		connection_timeout_seconds,
		troubleshooting_url,
		motd_file,
		display_apps
	)
VALUES
	($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17) RETURNING *;

-- name: UpdateWorkspaceAgentConnectionByID :exec
UPDATE
	workspace_agents
SET
	first_connected_at = $2,
	last_connected_at = $3,
	last_connected_replica_id = $4,
	disconnected_at = $5,
	updated_at = $6
WHERE
	id = $1;

-- name: UpdateWorkspaceAgentStartupByID :exec
UPDATE
	workspace_agents
SET
	version = $2,
	expanded_directory = $3,
	subsystems = $4,
	api_version = $5
WHERE
	id = $1;

-- name: GetWorkspaceAgentLifecycleStateByID :one
SELECT
	lifecycle_state,
	started_at,
	ready_at
FROM
	workspace_agents
WHERE
	id = $1;


-- name: UpdateWorkspaceAgentLifecycleStateByID :exec
UPDATE
	workspace_agents
SET
	lifecycle_state = $2,
	started_at = $3,
	ready_at = $4
WHERE
	id = $1;

-- name: InsertWorkspaceAgentMetadata :exec
INSERT INTO
	workspace_agent_metadata (
		workspace_agent_id,
		display_name,
		key,
		script,
		timeout,
		interval
	)
VALUES
	($1, $2, $3, $4, $5, $6);

-- name: UpdateWorkspaceAgentMetadata :exec
WITH metadata AS (
	SELECT
		unnest(sqlc.arg('key')::text[]) AS key,
		unnest(sqlc.arg('value')::text[]) AS value,
		unnest(sqlc.arg('error')::text[]) AS error,
		unnest(sqlc.arg('collected_at')::timestamptz[]) AS collected_at
)
UPDATE
	workspace_agent_metadata wam
SET
	value = m.value,
	error = m.error,
	collected_at = m.collected_at
FROM
	metadata m
WHERE
	wam.workspace_agent_id = $1
	AND wam.key = m.key;

-- name: GetWorkspaceAgentMetadata :many
SELECT
	*
FROM
	workspace_agent_metadata
WHERE
	workspace_agent_id = $1
	AND CASE WHEN COALESCE(array_length(sqlc.arg('keys')::text[], 1), 0) > 0 THEN key = ANY(sqlc.arg('keys')::text[]) ELSE TRUE END;

-- name: UpdateWorkspaceAgentLogOverflowByID :exec
UPDATE
	workspace_agents
SET
	logs_overflowed = $2
WHERE
	id = $1;

-- name: GetWorkspaceAgentLogsAfter :many
SELECT
	*
FROM
	workspace_agent_logs
WHERE
	agent_id = $1
	AND (
		id > @created_after
	) ORDER BY id ASC;

-- name: InsertWorkspaceAgentLogs :many
WITH new_length AS (
	UPDATE workspace_agents SET
	logs_length = logs_length + @output_length WHERE workspace_agents.id = @agent_id
)
INSERT INTO
		workspace_agent_logs (agent_id, created_at, output, level, log_source_id)
	SELECT
		@agent_id :: uuid AS agent_id,
		@created_at :: timestamptz AS created_at,
		unnest(@output :: VARCHAR(1024) [ ]) AS output,
		unnest(@level :: log_level [ ]) AS level,
		@log_source_id :: uuid AS log_source_id
	RETURNING workspace_agent_logs.*;

-- name: InsertWorkspaceAgentLogSources :many
INSERT INTO
		workspace_agent_log_sources (workspace_agent_id, created_at, id, display_name, icon)
	SELECT
		@workspace_agent_id :: uuid AS workspace_agent_id,
		@created_at :: timestamptz AS created_at,
		unnest(@id :: uuid [ ]) AS id,
		unnest(@display_name :: VARCHAR(127) [ ]) AS display_name,
		unnest(@icon :: text [ ]) AS icon
	RETURNING workspace_agent_log_sources.*;

-- name: GetWorkspaceAgentLogSourcesByAgentIDs :many
SELECT * FROM workspace_agent_log_sources WHERE workspace_agent_id = ANY(@ids :: uuid [ ]);

-- If an agent hasn't connected in the last 7 days, we purge it's logs.
-- Logs can take up a lot of space, so it's important we clean up frequently.
-- name: DeleteOldWorkspaceAgentLogs :exec
DELETE FROM workspace_agent_logs WHERE agent_id IN
	(SELECT id FROM workspace_agents WHERE last_connected_at IS NOT NULL
		AND last_connected_at < NOW() - INTERVAL '7 day');

-- name: GetWorkspaceAgentsInLatestBuildByWorkspaceID :many
SELECT
	workspace_agents.*
FROM
	workspace_agents
JOIN
	workspace_resources ON workspace_agents.resource_id = workspace_resources.id
JOIN
	workspace_builds ON workspace_resources.job_id = workspace_builds.job_id
WHERE
	workspace_builds.workspace_id = @workspace_id :: uuid AND
	workspace_builds.build_number = (
    	SELECT
			MAX(build_number)
    	FROM
			workspace_builds AS wb
    	WHERE
			wb.workspace_id = @workspace_id :: uuid
	);

-- name: GetWorkspaceAgentAndOwnerByAuthToken :one
SELECT
	sqlc.embed(workspace_agents),
	workspaces.id AS workspace_id,
	users.id AS owner_id,
	users.username AS owner_name,
	users.status AS owner_status,
	array_cat(
		array_append(users.rbac_roles, 'member'),
		array_append(ARRAY[]::text[], 'organization-member:' || organization_members.organization_id::text)
	)::text[] as owner_roles,
	array_agg(COALESCE(group_members.group_id::text, ''))::text[] AS owner_groups
FROM users
	INNER JOIN
		workspaces
	ON
		workspaces.owner_id = users.id
	INNER JOIN
		workspace_builds
	ON
		workspace_builds.workspace_id = workspaces.id
	INNER JOIN
		workspace_resources
	ON
		workspace_resources.job_id = workspace_builds.job_id
	INNER JOIN
		workspace_agents
	ON
		workspace_agents.resource_id = workspace_resources.id
	INNER JOIN -- every user is a member of some org
		organization_members
	ON
		organization_members.user_id = users.id
	LEFT JOIN -- as they may not be a member of any groups
		group_members
	ON
		group_members.user_id = users.id
WHERE
	-- TODO: we can add more conditions here, such as:
	-- 1) The user must be active
	-- 2) The workspace must be running
	workspace_agents.auth_token = @auth_token
AND
	workspaces.deleted = FALSE
GROUP BY
	workspace_agents.id,
	workspaces.id,
	users.id,
	organization_members.organization_id,
	workspace_builds.build_number
ORDER BY
	workspace_builds.build_number DESC
LIMIT 1;