suppressPackageStartupMessages({
  library(asa)
})

args <- commandArgs(trailingOnly = FALSE)
file_arg <- "--file="
script_arg <- args[grepl(paste0("^", file_arg), args)]
script_path <- if (length(script_arg)) {
  normalizePath(sub(file_arg, "", script_arg[[1]]), mustWork = TRUE)
} else {
  normalizePath("Tests/api_contract_smoke.R", mustWork = TRUE)
}

repo_root <- normalizePath(file.path(dirname(script_path), ".."), mustWork = TRUE)
source(file.path(repo_root, "R", "asa_api_helpers.R"))

assert_true <- function(condition, message) {
  if (!isTRUE(condition)) {
    stop(message, call. = FALSE)
  }
}

expect_error_contains <- function(expr, pattern) {
  error_message <- NULL
  tryCatch(
    force(expr),
    error = function(e) {
      error_message <<- conditionMessage(e)
      NULL
    }
  )

  if (is.null(error_message)) {
    stop(sprintf("Expected error containing %s, but no error was raised.", sQuote(pattern)), call. = FALSE)
  }
  if (!grepl(pattern, error_message, fixed = TRUE)) {
    stop(
      sprintf(
        "Expected error containing %s, got: %s",
        sQuote(pattern),
        error_message
      ),
      call. = FALSE
    )
  }

  invisible(error_message)
}

prompts <- asa_api_require_prompts(list(prompts = list(" Hello ", "World ")))
assert_true(identical(prompts, c("Hello", "World")), "Valid prompt arrays should be trimmed and preserved.")

expect_error_contains(
  asa_api_require_prompts(list(prompts = list(list(prompt = "Q1", id = "row1")))),
  "Structured prompt objects are not supported by `/v1/batch`."
)

expect_error_contains(
  asa_api_require_prompts(list(prompts = list("Hello", TRUE))),
  "`prompts` must be a JSON array of non-empty strings."
)

expect_error_contains(
  asa_api_require_prompts(list(prompts = list("Hello", "   "))),
  "Each entry in `prompts` must be a non-empty string."
)

asa_api_validate_batch_supported_fields(list(
  prompts = list("Hello", "World"),
  run = list(output_format = "text", performance_profile = "balanced")
))

expect_error_contains(
  asa_api_validate_batch_supported_fields(list(
    prompts = list("Hello"),
    run = list(expected_schema = list(type = "object"))
  )),
  "Unsupported `/v1/batch` `run` keys:"
)

expect_error_contains(
  asa_api_validate_batch_supported_fields(list(
    prompts = list("Hello"),
    use_plan_mode = TRUE
  )),
  "Unsupported `/v1/batch` top-level keys:"
)

run_args <- asa_api_build_run_args(list(run = list(
  expected_schema = list(type = "object"),
  use_plan_mode = TRUE,
  performance_profile = "balanced"
)))
assert_true(
  all(c("output_format", "expected_schema", "use_plan_mode", "performance_profile") %in% names(run_args)),
  "`/v1/run` should continue forwarding newer upstream run_task options."
)

batch_args <- asa_api_build_batch_args(list(
  run = list(output_format = "json", performance_profile = "quality"),
  parallel = FALSE
))
assert_true(
  all(c("output_format", "performance_profile", "parallel", "progress") %in% names(batch_args)),
  "Batch-compatible shared options should still flow into run_task_batch."
)

assert_true(
  identical(asa_api_has_run_direct_task(), !is.null(asa_api_get_run_direct_task(optional = TRUE))),
  "Direct-provider capability checks should agree on run_direct_task availability."
)

mock_request <- function(path = "/v1/run", authorization = NULL, x_api_key = NULL) {
  headers <- list()
  if (!is.null(authorization)) {
    headers$authorization <- authorization
  }
  if (!is.null(x_api_key)) {
    headers[["x-api-key"]] <- x_api_key
  }

  list(
    PATH_INFO = path,
    HEADERS = headers
  )
}

assert_true(
  isTRUE(asa_api_path_requires_bearer_auth("/v1/run")) &&
    isTRUE(asa_api_path_requires_bearer_auth("/v1/batch")),
  "`/v1/*` routes should require bearer auth."
)
assert_true(
  !isTRUE(asa_api_path_requires_bearer_auth("/healthz")) &&
    !isTRUE(asa_api_path_requires_bearer_auth("/gui/query")),
  "Health and GUI routes should remain outside bearer auth scope."
)
assert_true(
  identical(asa_api_required_bearer_token(), "999"),
  "Bearer auth should require the fixed token 999."
)
assert_true(
  identical(
    asa_api_extract_bearer_token(mock_request(authorization = "Bearer 999")),
    "999"
  ),
  "Bearer extraction should accept the required token."
)
assert_true(
  identical(
    asa_api_extract_bearer_token(list(
      PATH_INFO = "/v1/run",
      HEADERS = list(Authorization = "Bearer 999")
    )),
    "999"
  ),
  "Bearer extraction should match Authorization headers case-insensitively."
)
assert_true(
  identical(
    asa_api_extract_bearer_token(mock_request(authorization = "Basic 999")),
    ""
  ),
  "Non-bearer Authorization schemes should not be accepted."
)
assert_true(
  isTRUE(asa_api_has_required_bearer_token(mock_request(authorization = "Bearer 999"))),
  "Bearer auth should accept Authorization: Bearer 999."
)
assert_true(
  !isTRUE(asa_api_has_required_bearer_token(mock_request(authorization = "Bearer wrong"))),
  "Bearer auth should reject the wrong token."
)
assert_true(
  !isTRUE(asa_api_has_required_bearer_token(mock_request(x_api_key = "999"))),
  "Legacy x-api-key auth should no longer be accepted."
)

health_payload <- asa_api_health_payload()
assert_true(
  identical(isTRUE(health_payload$direct_provider_available), isTRUE(asa_api_has_run_direct_task())),
  "Health payload should report direct-provider availability from the same capability check."
)
if (isTRUE(health_payload$direct_provider_available)) {
  assert_true(
    is.null(health_payload$direct_provider_note),
    "Health payload should omit the direct-provider note when the capability is available."
  )
} else {
  assert_true(
    is.character(health_payload$direct_provider_note) && nzchar(trimws(health_payload$direct_provider_note)),
    "Health payload should explain why direct-provider mode is unavailable."
  )
}

{
  original_asa <- asa_api_run_single_via_asa
  original_direct <- asa_api_run_single_via_direct

  dispatch_calls <- character(0)
  asa_api_run_single_via_asa <- function(payload) {
    dispatch_calls <<- c(dispatch_calls, "asa")
    list(status = "success", execution = list(mode = "asa_agent"))
  }
  asa_api_run_single_via_direct <- function(payload) {
    dispatch_calls <<- c(dispatch_calls, "direct")
    list(status = "success", execution = list(mode = "provider_direct"))
  }

  asa_api_run_single(
    list(prompt = "Hello", use_direct_provider = TRUE),
    allow_direct_provider = FALSE
  )
  assert_true(
    identical(dispatch_calls, "asa"),
    "Single-run API should ignore the private direct-provider flag."
  )

  dispatch_calls <- character(0)
  gui_direct <- asa_api_run_single(
    list(prompt = "Hello", use_direct_provider = TRUE),
    allow_direct_provider = TRUE
  )
  assert_true(
    identical(dispatch_calls, "direct"),
    "GUI single-run path should dispatch to direct-provider mode when enabled."
  )
  assert_true(
    identical(gui_direct$execution$mode, "provider_direct"),
    "Direct-provider dispatch should preserve provider_direct mode metadata."
  )

  asa_api_run_single_via_asa <- original_asa
  asa_api_run_single_via_direct <- original_direct
}

gui_result <- asa_api_sanitize_gui_result(list(
  status = "success",
  execution = list(
    mode = "provider_direct",
    config_snapshot = list(backend = "gemini", model = "gemini-3-flash-preview"),
    payload_integrity = list(
      backend = "gemini",
      model = "gemini-3-flash-preview",
      released_from = "message_text"
    ),
    trace_metadata = list(
      structured_output_backend = "gemini",
      model_name = "gemini-3-flash-preview"
    )
  )
))
assert_true(
  is.null(gui_result$execution$config_snapshot$backend) &&
    is.null(gui_result$execution$config_snapshot$model),
  "GUI responses should not expose backend/model selection in execution metadata."
)
assert_true(
  is.null(gui_result$execution$payload_integrity$backend) &&
    is.null(gui_result$execution$payload_integrity$model),
  "GUI payload integrity metadata should hide backend/model fields."
)

cat("asa-api contract smoke checks passed\n")