-- name: GetWorkspaceByID :one
SELECT
	*
FROM
	workspaces
WHERE
	id = $1
LIMIT
	1;

-- name: GetWorkspaceByWorkspaceAppID :one
SELECT
	*
FROM
	workspaces
WHERE
		workspaces.id = (
		SELECT
			workspace_id
		FROM
			workspace_builds
		WHERE
				workspace_builds.job_id = (
				SELECT
					job_id
				FROM
					workspace_resources
				WHERE
						workspace_resources.id = (
						SELECT
							resource_id
						FROM
							workspace_agents
						WHERE
								workspace_agents.id = (
								SELECT
									agent_id
								FROM
									workspace_apps
								WHERE
									workspace_apps.id = @workspace_app_id
								)
					)
			)
	);

-- name: GetWorkspaceByAgentID :one
SELECT
	*
FROM
	workspaces
WHERE
	workspaces.id = (
		SELECT
			workspace_id
		FROM
			workspace_builds
		WHERE
			workspace_builds.job_id = (
				SELECT
					job_id
				FROM
					workspace_resources
				WHERE
					workspace_resources.id = (
						SELECT
							resource_id
						FROM
							workspace_agents
						WHERE
							workspace_agents.id = @agent_id
					)
			)
	);

-- name: GetWorkspaces :many
SELECT
	workspaces.*, COUNT(*) OVER () as count
FROM
	workspaces
LEFT JOIN LATERAL (
	SELECT
		workspace_builds.transition,
		provisioner_jobs.id AS provisioner_job_id,
		provisioner_jobs.started_at,
		provisioner_jobs.updated_at,
		provisioner_jobs.canceled_at,
		provisioner_jobs.completed_at,
		provisioner_jobs.error
	FROM
		workspace_builds
	LEFT JOIN
		provisioner_jobs
	ON
		provisioner_jobs.id = workspace_builds.job_id
	WHERE
		workspace_builds.workspace_id = workspaces.id
	ORDER BY
		build_number DESC
	LIMIT
		1
) latest_build ON TRUE
WHERE
	-- Optionally include deleted workspaces
	workspaces.deleted = @deleted
	AND CASE
		WHEN @status :: text != '' THEN
			CASE
				WHEN @status = 'pending' THEN
					latest_build.started_at IS NULL
				WHEN @status = 'starting' THEN
					latest_build.started_at IS NOT NULL AND
					latest_build.canceled_at IS NULL AND
					latest_build.completed_at IS NULL AND
					latest_build.updated_at - INTERVAL '30 seconds' < NOW() AND
					latest_build.transition = 'start'::workspace_transition

				WHEN @status = 'running' THEN
					latest_build.completed_at IS NOT NULL AND
					latest_build.canceled_at IS NULL AND
					latest_build.error IS NULL AND
					latest_build.transition = 'start'::workspace_transition

				WHEN @status = 'stopping' THEN
					latest_build.started_at IS NOT NULL AND
					latest_build.canceled_at IS NULL AND
					latest_build.completed_at IS NULL AND
					latest_build.updated_at - INTERVAL '30 seconds' < NOW() AND
					latest_build.transition = 'stop'::workspace_transition

				WHEN @status = 'stopped' THEN
					latest_build.completed_at IS NOT NULL AND
					latest_build.canceled_at IS NULL AND
					latest_build.error IS NULL AND
					latest_build.transition = 'stop'::workspace_transition

				WHEN @status = 'failed' THEN
					(latest_build.canceled_at IS NOT NULL AND
						latest_build.error IS NOT NULL) OR
					(latest_build.completed_at IS NOT NULL AND
						latest_build.error IS NOT NULL)

				WHEN @status = 'canceling' THEN
					latest_build.canceled_at IS NOT NULL AND
					latest_build.completed_at IS NULL

				WHEN @status = 'canceled' THEN
					latest_build.canceled_at IS NOT NULL AND
					latest_build.completed_at IS NOT NULL

				WHEN @status = 'deleted' THEN
					latest_build.started_at IS NOT NULL AND
					latest_build.canceled_at IS NULL AND
					latest_build.completed_at IS NOT NULL AND
					latest_build.updated_at - INTERVAL '30 seconds' < NOW() AND
					latest_build.transition = 'delete'::workspace_transition

				WHEN @status = 'deleting' THEN
					latest_build.completed_at IS NOT NULL AND
					latest_build.canceled_at IS NULL AND
					latest_build.error IS NULL AND
					latest_build.transition = 'delete'::workspace_transition

				ELSE
					true
			END
		ELSE true
	END
	-- Filter by owner_id
	AND CASE
		WHEN @owner_id :: uuid != '00000000-0000-0000-0000-000000000000'::uuid THEN
			owner_id = @owner_id
		ELSE true
	END
	-- Filter by owner_name
	AND CASE
		WHEN @owner_username :: text != '' THEN
			owner_id = (SELECT id FROM users WHERE lower(username) = lower(@owner_username) AND deleted = false)
		ELSE true
	END
	-- Filter by template_name
	-- There can be more than 1 template with the same name across organizations.
	-- Use the organization filter to restrict to 1 org if needed.
	AND CASE
		WHEN @template_name :: text != '' THEN
			template_id = ANY(SELECT id FROM templates WHERE lower(name) = lower(@template_name) AND deleted = false)
		ELSE true
	END
	-- Filter by template_ids
	AND CASE
		WHEN array_length(@template_ids :: uuid[], 1) > 0 THEN
			template_id = ANY(@template_ids)
		ELSE true
	END
	-- Filter by name, matching on substring
	AND CASE
		WHEN @name :: text != '' THEN
			name ILIKE '%' || @name || '%'
		ELSE true
	END
	-- Filter by agent status
	-- has-agent: is only applicable for workspaces in "start" transition. Stopped and deleted workspaces don't have agents.
	AND CASE
		WHEN @has_agent :: text != '' THEN
			(
				SELECT COUNT(*)
				FROM
					workspace_resources
				JOIN
					workspace_agents
				ON
					workspace_agents.resource_id = workspace_resources.id
				WHERE
					workspace_resources.job_id = latest_build.provisioner_job_id AND
					latest_build.transition = 'start'::workspace_transition AND
					@has_agent = (
						CASE
							WHEN workspace_agents.first_connected_at IS NULL THEN
								CASE
									WHEN workspace_agents.connection_timeout_seconds > 0 AND NOW() - workspace_agents.created_at > workspace_agents.connection_timeout_seconds * INTERVAL '1 second' THEN
										'timeout'
									ELSE
										'connecting'
								END
							WHEN workspace_agents.disconnected_at > workspace_agents.last_connected_at THEN
								'disconnected'
							WHEN NOW() - workspace_agents.last_connected_at > INTERVAL '1 second' * @agent_inactive_disconnect_timeout_seconds :: bigint THEN
								'disconnected'
							WHEN workspace_agents.last_connected_at IS NOT NULL THEN
								'connected'
							ELSE
								NULL
						END
					)
			) > 0
		ELSE true
	END
	-- Authorize Filter clause will be injected below in GetAuthorizedWorkspaces
	-- @authorize_filter
ORDER BY
	last_used_at DESC
LIMIT
	CASE
		WHEN @limit_ :: integer > 0 THEN
			@limit_
	END
OFFSET
	@offset_
;

-- name: GetWorkspaceByOwnerIDAndName :one
SELECT
	*
FROM
	workspaces
WHERE
	owner_id = @owner_id
	AND deleted = @deleted
	AND LOWER("name") = LOWER(@name)
ORDER BY created_at DESC;

-- name: InsertWorkspace :one
INSERT INTO
	workspaces (
		id,
		created_at,
		updated_at,
		owner_id,
		organization_id,
		template_id,
		name,
		autostart_schedule,
		ttl
	)
VALUES
	($1, $2, $3, $4, $5, $6, $7, $8, $9) RETURNING *;

-- name: UpdateWorkspaceDeletedByID :exec
UPDATE
	workspaces
SET
	deleted = $2
WHERE
	id = $1;

-- name: UpdateWorkspace :one
UPDATE
	workspaces
SET
	name = $2
WHERE
	id = $1
	AND deleted = false
RETURNING *;

-- name: UpdateWorkspaceAutostart :exec
UPDATE
	workspaces
SET
	autostart_schedule = $2
WHERE
	id = $1;

-- name: UpdateWorkspaceTTL :exec
UPDATE
	workspaces
SET
	ttl = $2
WHERE
	id = $1;

-- name: UpdateWorkspaceLastUsedAt :exec
UPDATE
	workspaces
SET
	last_used_at = $2
WHERE
	id = $1;

-- name: UpdateWorkspaceTTLToBeWithinTemplateMax :exec
UPDATE
	workspaces
SET
	ttl = LEAST(ttl, @template_max_ttl::bigint)
WHERE
	template_id = @template_id
	-- LEAST() does not pick NULL, so filter it out as we don't want to set a
	-- TTL on the workspace if it's unset.
	--
	-- During build time, the template max TTL will still be used if the
	-- workspace TTL is NULL.
	AND ttl IS NOT NULL;

-- name: GetDeploymentWorkspaceStats :one
WITH workspaces_with_jobs AS (
	SELECT
	latest_build.* FROM workspaces
	LEFT JOIN LATERAL (
		SELECT
			workspace_builds.transition,
			provisioner_jobs.id AS provisioner_job_id,
			provisioner_jobs.started_at,
			provisioner_jobs.updated_at,
			provisioner_jobs.canceled_at,
			provisioner_jobs.completed_at,
			provisioner_jobs.error
		FROM
			workspace_builds
		LEFT JOIN
			provisioner_jobs
		ON
			provisioner_jobs.id = workspace_builds.job_id
		WHERE
			workspace_builds.workspace_id = workspaces.id
		ORDER BY
			build_number DESC
		LIMIT
			1
	) latest_build ON TRUE
), pending_workspaces AS (
	SELECT COUNT(*) AS count FROM workspaces_with_jobs WHERE
		started_at IS NULL
), building_workspaces AS (
	SELECT COUNT(*) AS count FROM workspaces_with_jobs WHERE
		started_at IS NOT NULL AND
		canceled_at IS NULL AND
		updated_at - INTERVAL '30 seconds' < NOW() AND
		completed_at IS NULL
), running_workspaces AS (
	SELECT COUNT(*) AS count FROM workspaces_with_jobs WHERE
		completed_at IS NOT NULL AND
		canceled_at IS NULL AND
		error IS NULL AND
		transition = 'start'::workspace_transition
), failed_workspaces AS (
	SELECT COUNT(*) AS count FROM workspaces_with_jobs WHERE
		(canceled_at IS NOT NULL AND
			error IS NOT NULL) OR
		(completed_at IS NOT NULL AND
			error IS NOT NULL)
), stopped_workspaces AS (
	SELECT COUNT(*) AS count FROM workspaces_with_jobs WHERE
		completed_at IS NOT NULL AND
		canceled_at IS NULL AND
		error IS NULL AND
		transition = 'stop'::workspace_transition
)
SELECT
	pending_workspaces.count AS pending_workspaces,
	building_workspaces.count AS building_workspaces,
	running_workspaces.count AS running_workspaces,
	failed_workspaces.count AS failed_workspaces,
	stopped_workspaces.count AS stopped_workspaces
FROM pending_workspaces, building_workspaces, running_workspaces, failed_workspaces, stopped_workspaces;