/**
 * Seed presets for a workspace that has never saved Azure DevOps settings.
 *
 * NOTHING in this file is translated, and nothing in it should be.
 *
 *   - The `wiql` filters are Azure DevOps' query language — `[System.State]`,
 *     `@Me`, `ORDER BY` — i.e. code, on the same footing as Jira's JQL and
 *     Sentry's search syntax.
 *   - `label`, `hint` and `promptTemplate` are PERSISTED. They seed the
 *     editable drafts in azure-devops-default-queries.tsx and
 *     azure-devops-quick-actions.tsx and are written back to workspace settings
 *     as `AzureDevOpsQueryPreset` / `AzureDevOpsActionPreset`, so translating
 *     them would write locale-dependent values into a user's saved presets and
 *     leave them there after a locale switch. `promptTemplate` is additionally
 *     sent to the agent verbatim.
 *   - They must also keep matching the server-side defaults in
 *     `apps/backend/internal/azuredevops/workspace_settings.go`, which has no
 *     locale: the backend returns those records whenever the client asks for a
 *     reset, so a translated copy here would flip back to English on save.
 *
 * Localizing them needs a key/persisted-value split in the preset type — the
 * same open item recorded for GitHub's `DEFAULT_PR_PRESETS` and Jira's
 * `my-jira/presets.ts`.
 */
import type { AzureDevOpsActionPreset, AzureDevOpsQueryPreset } from "@/lib/types/azure-devops";

type Translate = (key: string) => string;

// i18n-exempt: WIQL is Azure DevOps' query language, not prose. See the file header.
const WIQL_START = "SELECT [System.Id] FROM WorkItems WHERE [System.TeamProject] = @project";
const WIQL_ORDER = " ORDER BY [System.ChangedDate] DESC";

function wiql(condition?: string): string {
  return `${WIQL_START}${condition ? ` AND ${condition}` : ""}${WIQL_ORDER}`;
}

// i18n-exempt: persisted preset seed, and must match the server-side defaults. See the file header.
export const DEFAULT_AZURE_WORK_ITEM_QUERIES: AzureDevOpsQueryPreset[] = [
  {
    id: "recent",
    label: "Recently updated",
    group: "inbox",
    filters: { wiql: wiql(), top: 50 },
  },
  {
    id: "assigned",
    label: "Assigned to me",
    group: "inbox",
    filters: { wiql: wiql("[System.AssignedTo] = @Me"), top: 50 },
  },
  {
    id: "active",
    label: "Active",
    group: "inbox",
    filters: {
      wiql: wiql("[System.State] <> 'Closed' AND [System.State] <> 'Done'"),
      top: 50,
    },
  },
  {
    id: "created",
    label: "Created by me",
    group: "created",
    filters: { wiql: wiql("[System.CreatedBy] = @Me"), top: 50 },
  },
];

// i18n-exempt: persisted preset seed, and must match the server-side defaults. See the file header.
export const DEFAULT_AZURE_PULL_REQUEST_QUERIES: AzureDevOpsQueryPreset[] = [
  {
    id: "review-requested",
    label: "Review requested",
    group: "inbox",
    filters: { status: "active", reviewer: "@me", creator: "" },
  },
  {
    id: "active",
    label: "Open",
    group: "inbox",
    filters: { status: "active", reviewer: "", creator: "" },
  },
  {
    id: "completed",
    label: "Completed",
    group: "created",
    filters: { status: "completed", reviewer: "", creator: "" },
  },
  {
    id: "created",
    label: "Created by me",
    group: "created",
    filters: { status: "active", reviewer: "", creator: "@me" },
  },
];

// i18n-exempt: persisted preset seed, and must match the server-side defaults. See the file header.
export const DEFAULT_AZURE_WORK_ITEM_ACTIONS: AzureDevOpsActionPreset[] = [
  {
    id: "implement",
    label: "Implement",
    hint: "Build and open a PR",
    icon: "code",
    promptTemplate:
      'Implement the Azure DevOps work item at {{url}} (title: "{{title}}"). Open a pull request when complete.',
  },
  {
    id: "investigate",
    label: "Investigate",
    hint: "Find the root cause",
    icon: "search",
    promptTemplate:
      'Investigate the Azure DevOps work item at {{url}} (title: "{{title}}"). Identify the root cause and summarize findings.',
  },
  {
    id: "reproduce",
    label: "Reproduce",
    hint: "Document repro steps",
    icon: "bug",
    promptTemplate:
      'Reproduce the Azure DevOps work item at {{url}} (title: "{{title}}"). Document the reproduction steps.',
  },
];

// i18n-exempt: persisted preset seed, and must match the server-side defaults. See the file header.
export const DEFAULT_AZURE_PULL_REQUEST_ACTIONS: AzureDevOpsActionPreset[] = [
  {
    id: "review",
    label: "Review",
    hint: "Read the diff, flag issues",
    icon: "eye",
    promptTemplate:
      "Review the Azure DevOps pull request at {{url}}. Provide feedback on code quality and correctness.",
  },
  {
    id: "address-feedback",
    label: "Address feedback",
    hint: "Apply review comments",
    icon: "message",
    promptTemplate: "Review and address the feedback on the Azure DevOps pull request at {{url}}.",
  },
  {
    id: "fix-ci",
    label: "Fix CI",
    hint: "Diagnose failing checks",
    icon: "tool",
    promptTemplate: "Investigate and fix CI failures for the Azure DevOps pull request at {{url}}.",
  },
];

const QUERY_LABEL_KEYS: Record<string, string> = {
  "work_item:recent": "azuredevops:defaultQueryRecentlyUpdated",
  "work_item:assigned": "azuredevops:defaultQueryAssignedToMe",
  "work_item:active": "azuredevops:defaultQueryActive",
  "work_item:created": "azuredevops:defaultQueryCreatedByMe",
  "pull_request:review-requested": "azuredevops:defaultQueryReviewRequested",
  "pull_request:active": "azuredevops:defaultQueryOpen",
  "pull_request:completed": "azuredevops:defaultQueryCompleted",
  "pull_request:created": "azuredevops:defaultQueryCreatedByMe",
};

const ACTION_COPY_KEYS: Record<string, { labelKey: string; hintKey: string }> = {
  "work_item:implement": {
    labelKey: "azuredevops:defaultActionImplement",
    hintKey: "azuredevops:defaultActionImplementHint",
  },
  "work_item:investigate": {
    labelKey: "azuredevops:defaultActionInvestigate",
    hintKey: "azuredevops:defaultActionInvestigateHint",
  },
  "work_item:reproduce": {
    labelKey: "azuredevops:defaultActionReproduce",
    hintKey: "azuredevops:defaultActionReproduceHint",
  },
  "pull_request:review": {
    labelKey: "azuredevops:defaultActionReview",
    hintKey: "azuredevops:defaultActionReviewHint",
  },
  "pull_request:address-feedback": {
    labelKey: "azuredevops:defaultActionAddressFeedback",
    hintKey: "azuredevops:defaultActionAddressFeedbackHint",
  },
  "pull_request:fix-ci": {
    labelKey: "azuredevops:defaultActionFixCi",
    hintKey: "azuredevops:defaultActionFixCiHint",
  },
};

export function azureQueryDisplayLabel(
  kind: "work_item" | "pull_request",
  preset: AzureDevOpsQueryPreset,
  t: Translate,
): string {
  const defaults =
    kind === "work_item" ? DEFAULT_AZURE_WORK_ITEM_QUERIES : DEFAULT_AZURE_PULL_REQUEST_QUERIES;
  const baseline = defaults.find((candidate) => candidate.id === preset.id);
  const key = QUERY_LABEL_KEYS[`${kind}:${preset.id}`];
  return key && baseline?.label === preset.label ? t(key) : preset.label;
}

export function azureActionDisplayCopy(
  kind: "work_item" | "pull_request",
  action: AzureDevOpsActionPreset,
  t: Translate,
): { label: string; hint: string } {
  const defaults =
    kind === "work_item" ? DEFAULT_AZURE_WORK_ITEM_ACTIONS : DEFAULT_AZURE_PULL_REQUEST_ACTIONS;
  const baseline = defaults.find((candidate) => candidate.id === action.id);
  const keys = ACTION_COPY_KEYS[`${kind}:${action.id}`];
  if (!keys || baseline?.label !== action.label || baseline.hint !== action.hint) {
    return { label: action.label, hint: action.hint };
  }
  return { label: t(keys.labelKey), hint: t(keys.hintKey) };
}